diff --git a/features/draft/spec/crash-reporting.yml b/features/draft/spec/crash-reporting.yml
index 443bed70472..65d1dee5233 100644
--- a/features/draft/spec/crash-reporting.yml
+++ b/features/draft/spec/crash-reporting.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-04-14
+draft_date: 2026-05-08
 name: Crash Reporting
 description: TODO
 spec: https://wicg.github.io/crash-reporting/
@@ -8,4 +8,7 @@ compat_features:
   - api.CrashReportContext.initialize
   - api.CrashReportContext.set
   - api.Window.crashReport
-  - http.headers.Reporting-Endpoints.crash-reporting
+
+# The following features in the spec are already part of web-features:
+# - Crash reporting:
+#   - http.headers.Reporting-Endpoints.crash-reporting
diff --git a/features/draft/spec/crash-reporting.yml.dist b/features/draft/spec/crash-reporting.yml.dist
index 3f6196fcc57..03f7c8d91cb 100644
--- a/features/draft/spec/crash-reporting.yml.dist
+++ b/features/draft/spec/crash-reporting.yml.dist
@@ -8,19 +8,6 @@ status:
     chrome_android: "145"
     edge: "145"
 compat_features:
-  # baseline: false
-  # support:
-  #   chrome: "139"
-  #   chrome_android: "139"
-  #   edge: "139"
-  - http.headers.Reporting-Endpoints.crash-reporting
-
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: false
-  # support:
-  #   chrome: "145"
-  #   chrome_android: "145"
-  #   edge: "145"
   - api.CrashReportContext
   - api.CrashReportContext.delete
   - api.CrashReportContext.initialize
diff --git a/features/draft/spec/csp3.yml b/features/draft/spec/csp3.yml
index ab548c2b031..f3148860898 100644
--- a/features/draft/spec/csp3.yml
+++ b/features/draft/spec/csp3.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-03-16
+draft_date: 2026-05-08
 name: Content Security Policy Level 3
 description: TODO
 spec: https://w3c.github.io/webappsec-csp/
@@ -39,7 +39,6 @@ compat_features:
 #   - http.headers.Content-Security-Policy.meta-element-support
 #   - http.headers.Content-Security-Policy.object-src
 #   - http.headers.Content-Security-Policy.report-sample
-#   - http.headers.Content-Security-Policy.report-to
 #   - http.headers.Content-Security-Policy.sandbox
 #   - http.headers.Content-Security-Policy.script-src
 #   - http.headers.Content-Security-Policy.script-src.external_scripts
@@ -54,7 +53,6 @@ compat_features:
 #   - http.headers.Content-Security-Policy.worker-src
 #   - http.headers.Content-Security-Policy.worker_support
 #   - http.headers.Content-Security-Policy-Report-Only
-# - Reporting API:
+# - CSP violation reports:
 #   - api.ReportingObserver.ReportingObserver.options_parameter.types_property.csp-violation
-# - Speculation rules:
-#   - http.headers.Content-Security-Policy.script-src.inline-speculation-rules
+#   - http.headers.Content-Security-Policy.report-to
diff --git a/features/draft/spec/css-anchor-position-2.yml b/features/draft/spec/css-anchor-position-2.yml
index 525e7c5b2a4..215696bb52c 100644
--- a/features/draft/spec/css-anchor-position-2.yml
+++ b/features/draft/spec/css-anchor-position-2.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-04-28
+draft_date: 2026-05-08
 name: CSS Anchor Positioning Module Level 2
 description: TODO
 spec: https://drafts.csswg.org/css-anchor-position-2/
@@ -329,7 +329,6 @@ compat_features:
 #   - css.properties.width.anchor-size
 #   - css.types.anchor
 #   - css.types.anchor-size
-#   - css.types.anchor-size.inset_margin
 #   - html.elements.button.popovertarget.implicit_anchor_reference
 #   - html.elements.input.popovertarget.implicit_anchor_reference
 # - Anchor position container queries:
diff --git a/features/draft/spec/css-animations-2.yml b/features/draft/spec/css-animations-2.yml
index 8d189c94750..b55cee6e725 100644
--- a/features/draft/spec/css-animations-2.yml
+++ b/features/draft/spec/css-animations-2.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-03-16
+draft_date: 2026-05-08
 name: CSS Animations Level 2
 description: TODO
 spec: https://drafts.csswg.org/css-animations-2/
@@ -64,14 +64,15 @@ compat_features:
 #   - css.properties.animation-play-state.paused
 #   - css.properties.animation-play-state.running
 #   - css.properties.animation-timing-function
-#   - css.properties.animation-timing-function.jump
 # - Web animations:
 #   - api.Element.animationcancel_event
 #   - api.Element.animationend_event
 #   - api.Element.animationiteration_event
 #   - api.Element.animationstart_event
-# - Scroll-driven animations:
-#   - css.properties.animation.animation-timeline_included
-#   - css.properties.animation-timeline
 # - animation-composition:
 #   - css.properties.animation-composition
+# - Scroll-driven animations:
+#   - css.properties.animation-timeline
+# - Grid animation:
+#   - css.properties.grid-template-columns.animation
+#   - css.properties.grid-template-rows.animation
diff --git a/features/draft/spec/css-color-5.yml b/features/draft/spec/css-color-5.yml
index 99143d0937b..3126594ab2c 100644
--- a/features/draft/spec/css-color-5.yml
+++ b/features/draft/spec/css-color-5.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-05-07
+draft_date: 2026-05-08
 name: CSS Color Module Level 5
 description: TODO
 spec: https://drafts.csswg.org/css-color-5/
@@ -86,13 +86,14 @@ compat_features:
 #   - css.properties.lighting-color.transparent
 # - opacity:
 #   - css.properties.opacity
-#   - css.properties.opacity.percentages
 #   - svg.global_attributes.opacity
 # - outline:
 #   - css.properties.outline.currentColor
 #   - css.properties.outline.transparent
 # - Outlines:
 #   - css.properties.outline-color.transparent
+# - shape-outside:
+#   - css.properties.shape-image-threshold.percentages
 # - SVG:
 #   - css.properties.stop-color.currentColor
 #   - css.properties.stop-color.transparent
@@ -111,10 +112,8 @@ compat_features:
 #   - css.properties.text-emphasis-color.transparent
 # - attr():
 #   - css.types.attr.type_function.color
-# - color():
-#   - css.types.color.color
-#   - css.types.color.color.mixed_type_parameters
 # - Relative colors:
+#   - css.types.calc.color_component
 #   - css.types.color.color.relative_syntax
 #   - css.types.color.hsl.relative_syntax
 #   - css.types.color.hwb.relative_syntax
@@ -123,6 +122,8 @@ compat_features:
 #   - css.types.color.oklab.relative_syntax
 #   - css.types.color.oklch.relative_syntax
 #   - css.types.color.rgb.relative_syntax
+# - color():
+#   - css.types.color.color
 # - color-mix():
 #   - css.types.color.color-mix
 # - contrast-color():
@@ -130,16 +131,12 @@ compat_features:
 # - HSL:
 #   - css.types.color.hsl
 #   - css.types.color.hsl.alpha_parameter
-#   - css.types.color.hsl.mixed_type_parameters
 #   - css.types.color.hsl.space_separated_parameters
 # - HWB:
 #   - css.types.color.hwb
-#   - css.types.color.hwb.mixed_type_parameters
 # - Lab and LCH:
 #   - css.types.color.lab
-#   - css.types.color.lab.mixed_type_parameters
 #   - css.types.color.lch
-#   - css.types.color.lch.mixed_type_parameters
 # - light-dark():
 #   - css.types.color.light-dark
 # - light-dark() image values:
@@ -150,14 +147,10 @@ compat_features:
 #   - css.types.color.named-color.transparent
 # - Oklab and OkLCh:
 #   - css.types.color.oklab
-#   - css.types.color.oklab.mixed_type_parameters
 #   - css.types.color.oklch
-#   - css.types.color.oklch.mixed_type_parameters
 # - RGB:
 #   - css.types.color.rgb
 #   - css.types.color.rgb.alpha_parameter
-#   - css.types.color.rgb.float_values
-#   - css.types.color.rgb.mixed_type_parameters
 #   - css.types.color.rgb.space_separated_parameters
 #   - css.types.color.rgb_hexadecimal_notation
 #   - css.types.color.rgb_hexadecimal_notation.alpha_hexadecimal_notation
@@ -167,3 +160,8 @@ compat_features:
 #   - css.types.color.system-color.buttonborder
 #   - css.types.color.system-color.mark
 #   - css.types.color.system-color.marktext
+# - Gradient interpolation:
+#   - css.types.gradient.conic-gradient.hue_interpolation_method
+#   - css.types.gradient.conic-gradient.interpolation_color_space
+#   - css.types.gradient.linear-gradient.hue_interpolation_method
+#   - css.types.gradient.linear-gradient.interpolation_color_space
diff --git a/features/draft/spec/css-conditional-5.yml b/features/draft/spec/css-conditional-5.yml
index dd99400b6ae..2b68a7894c5 100644
--- a/features/draft/spec/css-conditional-5.yml
+++ b/features/draft/spec/css-conditional-5.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-04-28
+draft_date: 2026-05-08
 name: CSS Conditional Rules Module Level 5
 description: TODO
 spec: https://drafts.csswg.org/css-conditional-5/
@@ -12,6 +12,7 @@ compat_features:
   - css.properties.container.normal
   - css.properties.container.scroll-state
   - css.properties.container.size
+  - css.types.if.style
 
 # The following features in the spec are already part of web-features:
 # - CSS.supports():
@@ -34,6 +35,7 @@ compat_features:
 #   - css.properties.container-type.inline-size
 #   - css.properties.container-type.normal
 #   - css.properties.container-type.size
+#   - css.types.length.container_query_length_units
 # - @supports:
 #   - api.CSSSupportsRule
 #   - css.at-rules.supports
@@ -56,6 +58,3 @@ compat_features:
 #   - css.at-rules.media.media_features
 #   - css.at-rules.media.media_query_values
 #   - css.at-rules.media.nested-queries
-#   - css.at-rules.media.or_syntax
-# - Media query range syntax:
-#   - css.at-rules.media.range_syntax
diff --git a/features/draft/spec/css-conditional-5.yml.dist b/features/draft/spec/css-conditional-5.yml.dist
index 014b77001ea..50340795218 100644
--- a/features/draft/spec/css-conditional-5.yml.dist
+++ b/features/draft/spec/css-conditional-5.yml.dist
@@ -58,6 +58,13 @@ compat_features:
   #   safari_ios: "26.4"
   - css.at-rules.container.container-query_optional
 
+  # baseline: false
+  # support:
+  #   chrome: "137"
+  #   chrome_android: "137"
+  #   edge: "137"
+  - css.types.if.style
+
   # baseline: false
   # support:
   #   chrome: "144"
diff --git a/features/draft/spec/css-content-3.yml b/features/draft/spec/css-content-3.yml
index bd4ccd4b79a..bf2274f0489 100644
--- a/features/draft/spec/css-content-3.yml
+++ b/features/draft/spec/css-content-3.yml
@@ -1,9 +1,8 @@
-draft_date: 2026-01-19
+draft_date: 2026-05-08
 name: CSS Generated Content Module Level 3
 description: TODO
 spec: https://drafts.csswg.org/css-content-3/
 compat_features:
-  - css.properties.content.alt_text.counters
   - css.selectors.marker.quotes_support
 
 # The following features in the spec are already part of web-features:
diff --git a/features/draft/spec/css-content-3.yml.dist b/features/draft/spec/css-content-3.yml.dist
index 55c2019649f..0725d3a31b2 100644
--- a/features/draft/spec/css-content-3.yml.dist
+++ b/features/draft/spec/css-content-3.yml.dist
@@ -3,15 +3,8 @@
 
 status:
   baseline: false
-  support: {}
+  support:
+    firefox: "147"
+    firefox_android: "147"
 compat_features:
-  # baseline: false
-  # support:
-  #   firefox: "147"
-  #   firefox_android: "147"
   - css.selectors.marker.quotes_support
-
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: false
-  # support: {}
-  - css.properties.content.alt_text.counters
diff --git a/features/draft/spec/css-flexbox-1.yml b/features/draft/spec/css-flexbox-1.yml
index 5f6bcf5e9e2..a61a328dbed 100644
--- a/features/draft/spec/css-flexbox-1.yml
+++ b/features/draft/spec/css-flexbox-1.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-11-03
+draft_date: 2026-05-08
 name: CSS Flexible Box Layout Module Level 1
 description: TODO
 spec: https://drafts.csswg.org/css-flexbox-1/
@@ -17,28 +17,14 @@ compat_features:
 # - Flexbox:
 #   - css.properties.align-content
 #   - css.properties.align-content.flex_context
-#   - css.properties.align-content.flex_context.baseline
-#   - css.properties.align-content.flex_context.first_baseline
-#   - css.properties.align-content.flex_context.last_baseline
-#   - css.properties.align-content.flex_context.safe_unsafe
-#   - css.properties.align-content.flex_context.space-evenly
-#   - css.properties.align-content.flex_context.start_end
 #   - css.properties.align-content.flex_context.stretch
 #   - css.properties.align-items
 #   - css.properties.align-items.flex_context
 #   - css.properties.align-items.flex_context.baseline
-#   - css.properties.align-items.flex_context.first_baseline
-#   - css.properties.align-items.flex_context.last_baseline
-#   - css.properties.align-items.flex_context.safe_unsafe
-#   - css.properties.align-items.flex_context.start_end
 #   - css.properties.align-self
 #   - css.properties.align-self.auto
 #   - css.properties.align-self.flex_context
 #   - css.properties.align-self.flex_context.baseline
-#   - css.properties.align-self.flex_context.first_baseline
-#   - css.properties.align-self.flex_context.last_baseline
-#   - css.properties.align-self.flex_context.safe_unsafe
-#   - css.properties.align-self.flex_context.start_end
 #   - css.properties.align-self.flex_context.stretch
 #   - css.properties.align-self.stretch
 #   - css.properties.flex
@@ -46,9 +32,6 @@ compat_features:
 #   - css.properties.flex-basis
 #   - css.properties.flex-basis.auto
 #   - css.properties.flex-basis.content
-#   - css.properties.flex-basis.fit-content
-#   - css.properties.flex-basis.max-content
-#   - css.properties.flex-basis.min-content
 #   - css.properties.flex-direction
 #   - css.properties.flex-direction.column
 #   - css.properties.flex-direction.column-reverse
@@ -63,16 +46,8 @@ compat_features:
 #   - css.properties.flex-wrap.wrap-reverse
 #   - css.properties.justify-content
 #   - css.properties.justify-content.flex_context
-#   - css.properties.justify-content.flex_context.left_right
-#   - css.properties.justify-content.flex_context.safe_unsafe
-#   - css.properties.justify-content.flex_context.space-evenly
-#   - css.properties.justify-content.flex_context.start_end
-#   - css.properties.justify-content.flex_context.stretch
-#   - css.properties.justify-content.left
-#   - css.properties.justify-content.normal
-#   - css.properties.justify-content.right
+#   - css.properties.position.absolutely_positioned_flex_children
 # - Grid:
 #   - css.properties.align-items.grid_context
-#   - css.properties.align-items.grid_context.start_end
 #   - css.properties.align-self.grid_context
 #   - css.properties.justify-content.grid_context
diff --git a/features/draft/spec/css-fonts-5.yml b/features/draft/spec/css-fonts-5.yml
index bc1bae4da67..888b930f1f2 100644
--- a/features/draft/spec/css-fonts-5.yml
+++ b/features/draft/spec/css-fonts-5.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-04-28
+draft_date: 2026-05-08
 name: CSS Fonts Module Level 5
 description: TODO
 spec: https://drafts.csswg.org/css-fonts-5/
@@ -143,7 +143,6 @@ compat_features:
 #   - css.properties.font-stretch.extra-condensed
 #   - css.properties.font-stretch.extra-expanded
 #   - css.properties.font-stretch.normal
-#   - css.properties.font-stretch.percentage
 #   - css.properties.font-stretch.semi-condensed
 #   - css.properties.font-stretch.semi-expanded
 #   - css.properties.font-stretch.ultra-condensed
@@ -165,7 +164,6 @@ compat_features:
 #   - css.properties.font-weight.bolder
 #   - css.properties.font-weight.lighter
 #   - css.properties.font-weight.normal
-#   - css.properties.font-weight.number
 #   - svg.global_attributes.font-weight
 # - font-size-adjust:
 #   - css.at-rules.font-face.size-adjust
@@ -245,14 +243,11 @@ compat_features:
 # - font-variant:
 #   - css.properties.font-variant
 #   - css.properties.font-variant.css_fonts_shorthand
-#   - css.properties.font-variant.greek_accented_characters
 #   - css.properties.font-variant.historical-forms
 #   - css.properties.font-variant.none
 #   - css.properties.font-variant.normal
 #   - css.properties.font-variant.sub
 #   - css.properties.font-variant.super
-#   - css.properties.font-variant.turkic_is
-#   - css.properties.font-variant.uppercase_eszett
 #   - svg.global_attributes.font-variant
 # - font-variant-caps:
 #   - css.properties.font-variant-caps
diff --git a/features/draft/spec/css-gaps-1.yml b/features/draft/spec/css-gaps-1.yml
new file mode 100644
index 00000000000..1f7110de42e
--- /dev/null
+++ b/features/draft/spec/css-gaps-1.yml
@@ -0,0 +1,126 @@
+draft_date: 2026-05-08
+name: CSS Gap Decorations Module Level 1
+description: TODO
+spec: https://drafts.csswg.org/css-gaps-1/
+compat_features:
+  - css.properties.column-rule-break
+  - css.properties.column-rule-break.intersection
+  - css.properties.column-rule-break.none
+  - css.properties.column-rule-break.normal
+  - css.properties.column-rule-inset
+  - css.properties.column-rule-inset-cap
+  - css.properties.column-rule-inset-cap-end
+  - css.properties.column-rule-inset-cap-start
+  - css.properties.column-rule-inset-end
+  - css.properties.column-rule-inset-junction
+  - css.properties.column-rule-inset-junction-end
+  - css.properties.column-rule-inset-junction-start
+  - css.properties.column-rule-inset-start
+  - css.properties.column-rule-visibility-items
+  - css.properties.column-rule-visibility-items.all
+  - css.properties.column-rule-visibility-items.around
+  - css.properties.column-rule-visibility-items.between
+  - css.properties.column-rule-visibility-items.normal
+  - css.properties.row-rule
+  - css.properties.row-rule-break
+  - css.properties.row-rule-break.intersection
+  - css.properties.row-rule-break.none
+  - css.properties.row-rule-break.normal
+  - css.properties.row-rule-color
+  - css.properties.row-rule-color.currentColor
+  - css.properties.row-rule-color.transparent
+  - css.properties.row-rule-inset
+  - css.properties.row-rule-inset-cap
+  - css.properties.row-rule-inset-cap-end
+  - css.properties.row-rule-inset-cap-start
+  - css.properties.row-rule-inset-end
+  - css.properties.row-rule-inset-junction
+  - css.properties.row-rule-inset-junction-end
+  - css.properties.row-rule-inset-junction-start
+  - css.properties.row-rule-inset-start
+  - css.properties.row-rule-style
+  - css.properties.row-rule-style.dashed
+  - css.properties.row-rule-style.dotted
+  - css.properties.row-rule-style.double
+  - css.properties.row-rule-style.groove
+  - css.properties.row-rule-style.hidden
+  - css.properties.row-rule-style.inset
+  - css.properties.row-rule-style.none
+  - css.properties.row-rule-style.outset
+  - css.properties.row-rule-style.ridge
+  - css.properties.row-rule-style.solid
+  - css.properties.row-rule-visibility-items
+  - css.properties.row-rule-visibility-items.all
+  - css.properties.row-rule-visibility-items.around
+  - css.properties.row-rule-visibility-items.between
+  - css.properties.row-rule-visibility-items.normal
+  - css.properties.row-rule-width
+  - css.properties.row-rule-width.medium
+  - css.properties.row-rule-width.thick
+  - css.properties.row-rule-width.thin
+  - css.properties.row-rule.currentColor
+  - css.properties.row-rule.dashed
+  - css.properties.row-rule.dotted
+  - css.properties.row-rule.double
+  - css.properties.row-rule.groove
+  - css.properties.row-rule.hidden
+  - css.properties.row-rule.inset
+  - css.properties.row-rule.medium
+  - css.properties.row-rule.none
+  - css.properties.row-rule.outset
+  - css.properties.row-rule.ridge
+  - css.properties.row-rule.solid
+  - css.properties.row-rule.thick
+  - css.properties.row-rule.thin
+  - css.properties.row-rule.transparent
+  - css.properties.rule
+  - css.properties.rule-break
+  - css.properties.rule-break.intersection
+  - css.properties.rule-break.none
+  - css.properties.rule-break.normal
+  - css.properties.rule-color
+  - css.properties.rule-color.currentColor
+  - css.properties.rule-color.transparent
+  - css.properties.rule-inset
+  - css.properties.rule-inset-cap
+  - css.properties.rule-inset-end
+  - css.properties.rule-inset-junction
+  - css.properties.rule-inset-start
+  - css.properties.rule-overlap
+  - css.properties.rule-overlap.column-over-row
+  - css.properties.rule-overlap.row-over-column
+  - css.properties.rule-style
+  - css.properties.rule-style.dashed
+  - css.properties.rule-style.dotted
+  - css.properties.rule-style.double
+  - css.properties.rule-style.groove
+  - css.properties.rule-style.hidden
+  - css.properties.rule-style.inset
+  - css.properties.rule-style.none
+  - css.properties.rule-style.outset
+  - css.properties.rule-style.ridge
+  - css.properties.rule-style.solid
+  - css.properties.rule-visibility-items
+  - css.properties.rule-visibility-items.all
+  - css.properties.rule-visibility-items.around
+  - css.properties.rule-visibility-items.between
+  - css.properties.rule-visibility-items.normal
+  - css.properties.rule-width
+  - css.properties.rule-width.medium
+  - css.properties.rule-width.thick
+  - css.properties.rule-width.thin
+  - css.properties.rule.currentColor
+  - css.properties.rule.dashed
+  - css.properties.rule.dotted
+  - css.properties.rule.double
+  - css.properties.rule.groove
+  - css.properties.rule.hidden
+  - css.properties.rule.inset
+  - css.properties.rule.medium
+  - css.properties.rule.none
+  - css.properties.rule.outset
+  - css.properties.rule.ridge
+  - css.properties.rule.solid
+  - css.properties.rule.thick
+  - css.properties.rule.thin
+  - css.properties.rule.transparent
diff --git a/features/draft/spec/css-gaps-1.yml.dist b/features/draft/spec/css-gaps-1.yml.dist
new file mode 100644
index 00000000000..a855b20dd19
--- /dev/null
+++ b/features/draft/spec/css-gaps-1.yml.dist
@@ -0,0 +1,128 @@
+# Generated from: css-gaps-1.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support: {}
+compat_features:
+  - css.properties.column-rule-break
+  - css.properties.column-rule-break.intersection
+  - css.properties.column-rule-break.none
+  - css.properties.column-rule-break.normal
+  - css.properties.column-rule-inset
+  - css.properties.column-rule-inset-cap
+  - css.properties.column-rule-inset-cap-end
+  - css.properties.column-rule-inset-cap-start
+  - css.properties.column-rule-inset-end
+  - css.properties.column-rule-inset-junction
+  - css.properties.column-rule-inset-junction-end
+  - css.properties.column-rule-inset-junction-start
+  - css.properties.column-rule-inset-start
+  - css.properties.column-rule-visibility-items
+  - css.properties.column-rule-visibility-items.all
+  - css.properties.column-rule-visibility-items.around
+  - css.properties.column-rule-visibility-items.between
+  - css.properties.column-rule-visibility-items.normal
+  - css.properties.row-rule
+  - css.properties.row-rule-break
+  - css.properties.row-rule-break.intersection
+  - css.properties.row-rule-break.none
+  - css.properties.row-rule-break.normal
+  - css.properties.row-rule-color
+  - css.properties.row-rule-color.currentColor
+  - css.properties.row-rule-color.transparent
+  - css.properties.row-rule-inset
+  - css.properties.row-rule-inset-cap
+  - css.properties.row-rule-inset-cap-end
+  - css.properties.row-rule-inset-cap-start
+  - css.properties.row-rule-inset-end
+  - css.properties.row-rule-inset-junction
+  - css.properties.row-rule-inset-junction-end
+  - css.properties.row-rule-inset-junction-start
+  - css.properties.row-rule-inset-start
+  - css.properties.row-rule-style
+  - css.properties.row-rule-style.dashed
+  - css.properties.row-rule-style.dotted
+  - css.properties.row-rule-style.double
+  - css.properties.row-rule-style.groove
+  - css.properties.row-rule-style.hidden
+  - css.properties.row-rule-style.inset
+  - css.properties.row-rule-style.none
+  - css.properties.row-rule-style.outset
+  - css.properties.row-rule-style.ridge
+  - css.properties.row-rule-style.solid
+  - css.properties.row-rule-visibility-items
+  - css.properties.row-rule-visibility-items.all
+  - css.properties.row-rule-visibility-items.around
+  - css.properties.row-rule-visibility-items.between
+  - css.properties.row-rule-visibility-items.normal
+  - css.properties.row-rule-width
+  - css.properties.row-rule-width.medium
+  - css.properties.row-rule-width.thick
+  - css.properties.row-rule-width.thin
+  - css.properties.row-rule.currentColor
+  - css.properties.row-rule.dashed
+  - css.properties.row-rule.dotted
+  - css.properties.row-rule.double
+  - css.properties.row-rule.groove
+  - css.properties.row-rule.hidden
+  - css.properties.row-rule.inset
+  - css.properties.row-rule.medium
+  - css.properties.row-rule.none
+  - css.properties.row-rule.outset
+  - css.properties.row-rule.ridge
+  - css.properties.row-rule.solid
+  - css.properties.row-rule.thick
+  - css.properties.row-rule.thin
+  - css.properties.row-rule.transparent
+  - css.properties.rule
+  - css.properties.rule-break
+  - css.properties.rule-break.intersection
+  - css.properties.rule-break.none
+  - css.properties.rule-break.normal
+  - css.properties.rule-color
+  - css.properties.rule-color.currentColor
+  - css.properties.rule-color.transparent
+  - css.properties.rule-inset
+  - css.properties.rule-inset-cap
+  - css.properties.rule-inset-end
+  - css.properties.rule-inset-junction
+  - css.properties.rule-inset-start
+  - css.properties.rule-overlap
+  - css.properties.rule-overlap.column-over-row
+  - css.properties.rule-overlap.row-over-column
+  - css.properties.rule-style
+  - css.properties.rule-style.dashed
+  - css.properties.rule-style.dotted
+  - css.properties.rule-style.double
+  - css.properties.rule-style.groove
+  - css.properties.rule-style.hidden
+  - css.properties.rule-style.inset
+  - css.properties.rule-style.none
+  - css.properties.rule-style.outset
+  - css.properties.rule-style.ridge
+  - css.properties.rule-style.solid
+  - css.properties.rule-visibility-items
+  - css.properties.rule-visibility-items.all
+  - css.properties.rule-visibility-items.around
+  - css.properties.rule-visibility-items.between
+  - css.properties.rule-visibility-items.normal
+  - css.properties.rule-width
+  - css.properties.rule-width.medium
+  - css.properties.rule-width.thick
+  - css.properties.rule-width.thin
+  - css.properties.rule.currentColor
+  - css.properties.rule.dashed
+  - css.properties.rule.dotted
+  - css.properties.rule.double
+  - css.properties.rule.groove
+  - css.properties.rule.hidden
+  - css.properties.rule.inset
+  - css.properties.rule.medium
+  - css.properties.rule.none
+  - css.properties.rule.outset
+  - css.properties.rule.ridge
+  - css.properties.rule.solid
+  - css.properties.rule.thick
+  - css.properties.rule.thin
+  - css.properties.rule.transparent
diff --git a/features/draft/spec/css-grid-3.yml b/features/draft/spec/css-grid-3.yml
index f31000965f5..e5faecf89da 100644
--- a/features/draft/spec/css-grid-3.yml
+++ b/features/draft/spec/css-grid-3.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-02-23
+draft_date: 2026-05-08
 name: CSS Grid Layout Module Level 3
 description: TODO
 spec: https://drafts.csswg.org/css-grid-3/
@@ -65,13 +65,8 @@ compat_features:
 # - Multi-column layout:
 #   - css.properties.column-gap
 #   - css.properties.column-gap.multicol_context
-#   - css.properties.column-gap.multicol_context.calc_values
-#   - css.properties.column-gap.multicol_context.percentage_values
 # - Flexbox gap:
 #   - css.properties.column-gap.flex_context
-# - Grid animation:
-#   - css.properties.grid-template-columns.animation
-#   - css.properties.grid-template-rows.animation
 # - Masonry:
 #   - css.properties.grid-template-columns.masonry
 #   - css.properties.grid-template-rows.masonry
diff --git a/features/draft/spec/css-images-4.yml b/features/draft/spec/css-images-4.yml
index 6a5f4abb041..c2f86c14bd2 100644
--- a/features/draft/spec/css-images-4.yml
+++ b/features/draft/spec/css-images-4.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-12-11
+draft_date: 2026-05-08
 name: CSS Images Module Level 4
 description: TODO
 spec: https://drafts.csswg.org/css-images-4/
@@ -18,7 +18,6 @@ compat_features:
 #   - css.types.gradient.linear-gradient.premultiplied_gradients
 #   - css.types.gradient.linear-gradient.single_color_stop
 #   - css.types.gradient.linear-gradient.to
-#   - css.types.gradient.linear-gradient.unitless_0_angle
 #   - css.types.gradient.radial-gradient
 #   - css.types.gradient.radial-gradient.at
 #   - css.types.gradient.radial-gradient.doubleposition
@@ -30,7 +29,6 @@ compat_features:
 #   - css.types.gradient.repeating-linear-gradient.interpolation_hints
 #   - css.types.gradient.repeating-linear-gradient.single_color_stop
 #   - css.types.gradient.repeating-linear-gradient.to
-#   - css.types.gradient.repeating-linear-gradient.unitless_0_angle
 #   - css.types.gradient.repeating-radial-gradient
 #   - css.types.gradient.repeating-radial-gradient.at
 #   - css.types.gradient.repeating-radial-gradient.doubleposition
@@ -41,6 +39,8 @@ compat_features:
 #   - css.properties.background-image.image-set
 #   - css.properties.content.image-set
 #   - css.types.image.image-set
+# - Border images:
+#   - css.properties.border-image.gradient
 # - Content:
 #   - css.properties.content.gradient
 # - image-orientation:
@@ -70,18 +70,18 @@ compat_features:
 # - shape-outside:
 #   - css.properties.shape-outside.gradient
 #   - css.properties.shape-outside.image
+# - Transitions (CSS):
+#   - css.properties.transition.gradients_can_animate
 # - attr():
 #   - css.types.attr.type_function.image
+# - calc():
+#   - css.types.calc.gradient_color_stops
 # - Conic gradients:
 #   - css.types.gradient.conic-gradient
 #   - css.types.gradient.conic-gradient.doubleposition
 #   - css.types.gradient.conic-gradient.single_color_stop
 #   - css.types.gradient.repeating-conic-gradient
 # - Gradient interpolation:
-#   - css.types.gradient.conic-gradient.hue_interpolation_method
-#   - css.types.gradient.conic-gradient.interpolation_color_space
-#   - css.types.gradient.linear-gradient.hue_interpolation_method
-#   - css.types.gradient.linear-gradient.interpolation_color_space
 #   - css.types.gradient.radial-gradient.hue_interpolation_method
 #   - css.types.gradient.radial-gradient.interpolation_color_space
 #   - css.types.gradient.repeating-conic-gradient.hue_interpolation_method
diff --git a/features/draft/spec/css-lists-3.yml b/features/draft/spec/css-lists-3.yml
index 3dfe1e22205..6bc2f59484e 100644
--- a/features/draft/spec/css-lists-3.yml
+++ b/features/draft/spec/css-lists-3.yml
@@ -1,8 +1,9 @@
-draft_date: 2026-01-19
+draft_date: 2026-05-08
 name: CSS Lists and Counters Module Level 3
 description: TODO
 spec: https://drafts.csswg.org/css-lists-3/
 compat_features:
+  - css.properties.content.alt_text.counters
   - css.selectors.marker.counter_support
 
 # The following features in the spec are already part of web-features:
@@ -34,4 +35,3 @@ compat_features:
 #   - css.properties.list-style-position.outside
 #   - css.properties.list-style-type
 #   - css.properties.list-style-type.none
-#   - css.properties.list-style-type.string
diff --git a/features/draft/spec/css-lists-3.yml.dist b/features/draft/spec/css-lists-3.yml.dist
index 1407cc89581..47d51b7d593 100644
--- a/features/draft/spec/css-lists-3.yml.dist
+++ b/features/draft/spec/css-lists-3.yml.dist
@@ -3,8 +3,15 @@
 
 status:
   baseline: false
-  support:
-    firefox: "147"
-    firefox_android: "147"
+  support: {}
 compat_features:
+  # baseline: false
+  # support:
+  #   firefox: "147"
+  #   firefox_android: "147"
   - css.selectors.marker.counter_support
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support: {}
+  - css.properties.content.alt_text.counters
diff --git a/features/draft/spec/css-multicol-2.yml b/features/draft/spec/css-multicol-2.yml
index fca5c1c023c..f755a03f97f 100644
--- a/features/draft/spec/css-multicol-2.yml
+++ b/features/draft/spec/css-multicol-2.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-02-10
+draft_date: 2026-05-08
 name: CSS Multi-column Layout Module Level 2
 description: TODO
 spec: https://drafts.csswg.org/css-multicol-2/
@@ -19,8 +19,6 @@ compat_features:
 #   - css.properties.column-count.auto
 #   - css.properties.column-gap
 #   - css.properties.column-gap.multicol_context
-#   - css.properties.column-gap.multicol_context.calc_values
-#   - css.properties.column-gap.multicol_context.percentage_values
 #   - css.properties.column-rule
 #   - css.properties.column-rule-color
 #   - css.properties.column-rule-style
@@ -28,56 +26,16 @@ compat_features:
 #   - css.properties.column-width
 #   - css.properties.column-width.auto
 #   - css.properties.columns
+# - Column breaks:
+#   - css.properties.break-after.multicol_context
+#   - css.properties.break-before.multicol_context
+#   - css.properties.break-inside.multicol_context
 # - Page breaks:
-#   - css.properties.break-after
-#   - css.properties.break-after.always
-#   - css.properties.break-after.auto
-#   - css.properties.break-after.avoid
-#   - css.properties.break-after.avoid-page
-#   - css.properties.break-after.left
-#   - css.properties.break-after.page
 #   - css.properties.break-after.paged_context
-#   - css.properties.break-after.paged_context.avoid-page
-#   - css.properties.break-after.paged_context.page
-#   - css.properties.break-after.paged_context.recto
-#   - css.properties.break-after.recto
-#   - css.properties.break-after.right
-#   - css.properties.break-after.verso
 #   - css.properties.break-before
-#   - css.properties.break-before.always
-#   - css.properties.break-before.auto
-#   - css.properties.break-before.avoid
-#   - css.properties.break-before.avoid-page
-#   - css.properties.break-before.left
-#   - css.properties.break-before.page
 #   - css.properties.break-before.paged_context
-#   - css.properties.break-before.paged_context.page
-#   - css.properties.break-before.paged_context.recto
-#   - css.properties.break-before.recto
-#   - css.properties.break-before.right
-#   - css.properties.break-before.verso
 #   - css.properties.break-inside
-#   - css.properties.break-inside.auto
-#   - css.properties.break-inside.avoid
-#   - css.properties.break-inside.avoid-page
 #   - css.properties.break-inside.paged_context
-#   - css.properties.break-inside.paged_context.avoid-page
-# - Column breaks:
-#   - css.properties.break-after.avoid-column
-#   - css.properties.break-after.column
-#   - css.properties.break-after.multicol_context
-#   - css.properties.break-after.multicol_context.avoid
-#   - css.properties.break-after.multicol_context.avoid-column
-#   - css.properties.break-after.multicol_context.column
-#   - css.properties.break-before.avoid-column
-#   - css.properties.break-before.column
-#   - css.properties.break-before.multicol_context
-#   - css.properties.break-before.multicol_context.avoid
-#   - css.properties.break-before.multicol_context.avoid-column
-#   - css.properties.break-before.multicol_context.column
-#   - css.properties.break-inside.avoid-column
-#   - css.properties.break-inside.multicol_context
-#   - css.properties.break-inside.multicol_context.avoid-column
 # - column-fill:
 #   - css.properties.column-fill
 #   - css.properties.column-fill.auto
diff --git a/features/draft/spec/css-overflow-5.yml b/features/draft/spec/css-overflow-5.yml
index eaa13024e72..8194fd7de4d 100644
--- a/features/draft/spec/css-overflow-5.yml
+++ b/features/draft/spec/css-overflow-5.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-02-16
+draft_date: 2026-05-08
 name: CSS Overflow Module Level 5
 description: TODO
 spec: https://drafts.csswg.org/css-overflow-5/
@@ -79,8 +79,6 @@ compat_features:
 #   - css.properties.text-overflow.ellipsis
 #   - css.properties.text-overflow.two_value_syntax
 #   - svg.global_attributes.text-overflow
-# - Custom ellipses:
-#   - css.properties.text-overflow.string
 # - ::scroll-button:
 #   - css.selectors.scroll-button
 #   - css.selectors.scroll-button.block-end
diff --git a/features/draft/spec/css-pseudo-4.yml b/features/draft/spec/css-pseudo-4.yml
index de927d421dc..c58e8d1f9e0 100644
--- a/features/draft/spec/css-pseudo-4.yml
+++ b/features/draft/spec/css-pseudo-4.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-03-16
+draft_date: 2026-05-08
 name: CSS Pseudo-Elements Module Level 4
 description: TODO
 spec: https://drafts.csswg.org/css-pseudo-4/
@@ -26,11 +26,8 @@ compat_features:
 #   - css.selectors.file-selector-button
 # - ::first-letter:
 #   - css.selectors.first-letter
-#   - css.selectors.first-letter.dutch_ij_digraph
-#   - css.selectors.first-letter.svg_text_element
 # - ::first-line:
 #   - css.selectors.first-line
-#   - css.selectors.first-line.svg_text_element
 # - ::spelling-error and ::grammar-error:
 #   - css.selectors.grammar-error
 #   - css.selectors.spelling-error
diff --git a/features/draft/spec/css-shapes-1.yml b/features/draft/spec/css-shapes-1.yml
index 2a7cd0c0b25..199d91c2e28 100644
--- a/features/draft/spec/css-shapes-1.yml
+++ b/features/draft/spec/css-shapes-1.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-05-04
+draft_date: 2026-05-08
 name: CSS Shapes Module Level 1
 description: TODO
 spec: https://drafts.csswg.org/css-shapes-1/
@@ -17,9 +17,10 @@ compat_features:
 # The following features in the spec are already part of web-features:
 # - clip-path:
 #   - css.properties.clip-path.basic_shape
+# - Motion path:
+#   - css.properties.offset-path.path
 # - shape-outside:
 #   - css.properties.shape-image-threshold
-#   - css.properties.shape-image-threshold.percentages
 #   - css.properties.shape-margin
 #   - css.properties.shape-outside
 #   - css.properties.shape-outside.circle
@@ -29,7 +30,6 @@ compat_features:
 #   - css.properties.shape-outside.polygon
 # - shapes:
 #   - css.types.basic-shape
-#   - css.types.basic-shape.animation
 #   - css.types.basic-shape.circle
 #   - css.types.basic-shape.ellipse
 #   - css.types.basic-shape.inset
diff --git a/features/draft/spec/css-sizing-4.yml b/features/draft/spec/css-sizing-4.yml
index 37ad3bae2c4..a184f9ec558 100644
--- a/features/draft/spec/css-sizing-4.yml
+++ b/features/draft/spec/css-sizing-4.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-11-03
+draft_date: 2026-05-08
 name: CSS Box Sizing Module Level 4
 description: TODO
 spec: https://drafts.csswg.org/css-sizing-4/
@@ -24,7 +24,6 @@ compat_features:
 #   - css.properties.aspect-ratio
 #   - css.properties.aspect-ratio.auto
 # - Logical properties:
-#   - css.properties.block-size
 #   - css.properties.block-size.fit-content
 #   - css.properties.block-size.max-content
 #   - css.properties.block-size.min-content
@@ -65,9 +64,6 @@ compat_features:
 #   - css.properties.box-sizing
 #   - css.properties.box-sizing.border-box
 #   - css.properties.box-sizing.content-box
-# - Multi-column layout:
-#   - css.properties.column-width
-#   - css.properties.column-width.auto
 # - contain-intrinsic-size:
 #   - css.properties.contain-intrinsic-block-size
 #   - css.properties.contain-intrinsic-block-size.none
@@ -80,6 +76,10 @@ compat_features:
 #   - css.properties.contain-intrinsic-size.none
 #   - css.properties.contain-intrinsic-width
 #   - css.properties.contain-intrinsic-width.none
+# - Flexbox:
+#   - css.properties.flex-basis.fit-content
+#   - css.properties.flex-basis.max-content
+#   - css.properties.flex-basis.min-content
 # - Width and height:
 #   - css.properties.height
 #   - css.properties.height.auto
diff --git a/features/draft/spec/css-text-4.yml b/features/draft/spec/css-text-4.yml
index e856e098323..a9628bccef1 100644
--- a/features/draft/spec/css-text-4.yml
+++ b/features/draft/spec/css-text-4.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-04-23
+draft_date: 2026-05-08
 name: CSS Text Module Level 4
 description: TODO
 spec: https://drafts.csswg.org/css-text-4/
@@ -38,69 +38,6 @@ compat_features:
 # - Hyphenation:
 #   - css.properties.hyphens
 #   - css.properties.hyphens.auto
-#   - css.properties.hyphens.language_afrikaans
-#   - css.properties.hyphens.language_albanian
-#   - css.properties.hyphens.language_amharic
-#   - css.properties.hyphens.language_armenian
-#   - css.properties.hyphens.language_assamese
-#   - css.properties.hyphens.language_basque
-#   - css.properties.hyphens.language_belarusian
-#   - css.properties.hyphens.language_bengali
-#   - css.properties.hyphens.language_bosnian
-#   - css.properties.hyphens.language_bulgarian
-#   - css.properties.hyphens.language_catalan
-#   - css.properties.hyphens.language_croatian
-#   - css.properties.hyphens.language_cyrillic_mongolian
-#   - css.properties.hyphens.language_czech
-#   - css.properties.hyphens.language_danish
-#   - css.properties.hyphens.language_dutch
-#   - css.properties.hyphens.language_english
-#   - css.properties.hyphens.language_esperanto
-#   - css.properties.hyphens.language_estonian
-#   - css.properties.hyphens.language_ethiopic_script_mul
-#   - css.properties.hyphens.language_ethiopic_script_und
-#   - css.properties.hyphens.language_finnish
-#   - css.properties.hyphens.language_french
-#   - css.properties.hyphens.language_galician
-#   - css.properties.hyphens.language_georgian
-#   - css.properties.hyphens.language_german_reformed_orthography
-#   - css.properties.hyphens.language_german_swiss_orthography
-#   - css.properties.hyphens.language_german_traditional_orthography
-#   - css.properties.hyphens.language_gujarati
-#   - css.properties.hyphens.language_hindi
-#   - css.properties.hyphens.language_hungarian
-#   - css.properties.hyphens.language_icelandic
-#   - css.properties.hyphens.language_interlingua
-#   - css.properties.hyphens.language_irish
-#   - css.properties.hyphens.language_italian
-#   - css.properties.hyphens.language_kannada
-#   - css.properties.hyphens.language_kurmanji
-#   - css.properties.hyphens.language_latin
-#   - css.properties.hyphens.language_latvian
-#   - css.properties.hyphens.language_lithuanian
-#   - css.properties.hyphens.language_malayalam
-#   - css.properties.hyphens.language_marathi
-#   - css.properties.hyphens.language_modern_greek
-#   - css.properties.hyphens.language_mongolian
-#   - css.properties.hyphens.language_norwegian_nn
-#   - css.properties.hyphens.language_norwegian_no
-#   - css.properties.hyphens.language_old_slavonic
-#   - css.properties.hyphens.language_oriya
-#   - css.properties.hyphens.language_polish
-#   - css.properties.hyphens.language_portuguese
-#   - css.properties.hyphens.language_punjabi
-#   - css.properties.hyphens.language_russian
-#   - css.properties.hyphens.language_slovak
-#   - css.properties.hyphens.language_slovenian
-#   - css.properties.hyphens.language_spanish
-#   - css.properties.hyphens.language_swedish
-#   - css.properties.hyphens.language_tamil
-#   - css.properties.hyphens.language_telugu
-#   - css.properties.hyphens.language_turkish
-#   - css.properties.hyphens.language_turkmen
-#   - css.properties.hyphens.language_ukrainian
-#   - css.properties.hyphens.language_upper_sorbian
-#   - css.properties.hyphens.language_welsh
 # - letter-spacing:
 #   - css.properties.letter-spacing
 #   - css.properties.letter-spacing.normal
@@ -165,16 +102,11 @@ compat_features:
 # - text-transform:
 #   - css.properties.text-transform
 #   - css.properties.text-transform.capitalize
-#   - css.properties.text-transform.dutch_ij_digraph
 #   - css.properties.text-transform.full-size-kana
 #   - css.properties.text-transform.full-width
-#   - css.properties.text-transform.greek_accented_characters
 #   - css.properties.text-transform.lowercase
-#   - css.properties.text-transform.lowercase_sigma
 #   - css.properties.text-transform.none
-#   - css.properties.text-transform.turkic_is
 #   - css.properties.text-transform.uppercase
-#   - css.properties.text-transform.uppercase_eszett
 # - MathML:
 #   - css.properties.text-transform.math-auto
 # - text-wrap:
diff --git a/features/draft/spec/css-text-decor-4.yml b/features/draft/spec/css-text-decor-4.yml
index 86db922e74b..e89214fc378 100644
--- a/features/draft/spec/css-text-decor-4.yml
+++ b/features/draft/spec/css-text-decor-4.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-03-16
+draft_date: 2026-05-08
 name: CSS Text Decoration Module Level 4
 description: TODO
 spec: https://drafts.csswg.org/css-text-decor-4/
@@ -37,7 +37,6 @@ compat_features:
 #   - css.properties.text-decoration-thickness
 #   - css.properties.text-decoration-thickness.auto
 #   - css.properties.text-decoration-thickness.from-font
-#   - css.properties.text-decoration-thickness.percentage
 # - Spelling and grammar text decorations:
 #   - css.properties.text-decoration-line.grammar-error
 #   - css.properties.text-decoration-line.spelling-error
diff --git a/features/draft/spec/css-transitions-2.yml b/features/draft/spec/css-transitions-2.yml
index 3bdb487bd6a..15837264171 100644
--- a/features/draft/spec/css-transitions-2.yml
+++ b/features/draft/spec/css-transitions-2.yml
@@ -1,5 +1,5 @@
-draft_date: 2025-12-08
-name: CSS Transitions Level 2
+draft_date: 2026-05-08
+name: CSS Transitions Module Level 2
 description: TODO
 spec: https://drafts.csswg.org/css-transitions-2/
 compat_features:
@@ -26,7 +26,6 @@ compat_features:
 #   - api.TransitionEvent.pseudoElement
 #   - css.properties.transition
 #   - css.properties.transition.all
-#   - css.properties.transition.gradients_can_animate
 #   - css.properties.transition.none
 #   - css.properties.transition-delay
 #   - css.properties.transition-duration
@@ -35,7 +34,6 @@ compat_features:
 #   - css.properties.transition-property.all
 #   - css.properties.transition-property.none
 #   - css.properties.transition-timing-function
-#   - css.properties.transition-timing-function.jump
 # - transition-behavior:
 #   - css.properties.transition.transition-behavior
 #   - css.properties.transition-behavior
diff --git a/features/draft/spec/css-ui-4.yml b/features/draft/spec/css-ui-4.yml
index 56b4a3c68e5..4a0a64f3239 100644
--- a/features/draft/spec/css-ui-4.yml
+++ b/features/draft/spec/css-ui-4.yml
@@ -1,11 +1,8 @@
-draft_date: 2026-03-11
+draft_date: 2026-05-08
 name: CSS Basic User Interface Module Level 4
 description: TODO
 spec: https://drafts.csswg.org/css-ui-4/
 compat_features:
-  - css.properties.appearance.base-select.listbox
-  - css.properties.appearance.base-select.multiple_dropdown
-  - css.properties.appearance.base-select.single_dropdown
   - css.properties.caret-animation
   - css.properties.caret-animation.auto
   - css.properties.caret-animation.manual
@@ -85,7 +82,6 @@ compat_features:
 #   - css.properties.cursor.sw-resize
 #   - css.properties.cursor.text
 #   - css.properties.cursor.url
-#   - css.properties.cursor.url_positioning_syntax
 #   - css.properties.cursor.vertical-text
 #   - css.properties.cursor.w-resize
 #   - css.properties.cursor.wait
diff --git a/features/draft/spec/css-ui-4.yml.dist b/features/draft/spec/css-ui-4.yml.dist
index 34abbfed23d..20271a7298b 100644
--- a/features/draft/spec/css-ui-4.yml.dist
+++ b/features/draft/spec/css-ui-4.yml.dist
@@ -3,7 +3,10 @@
 
 status:
   baseline: false
-  support: {}
+  support:
+    chrome: "142"
+    chrome_android: "142"
+    edge: "142"
 compat_features:
   # baseline: high
   # baseline_low_date: 2020-01-15
@@ -43,13 +46,6 @@ compat_features:
   - css.properties.resize.none
   - css.properties.resize.vertical
 
-  # baseline: false
-  # support:
-  #   chrome: "135"
-  #   chrome_android: "135"
-  #   edge: "135"
-  - css.properties.appearance.base-select.single_dropdown
-
   # baseline: false
   # support:
   #   chrome: "140"
@@ -59,6 +55,7 @@ compat_features:
   - css.properties.caret-animation.auto
   - css.properties.caret-animation.manual
 
+  # ⬇️ Same status as overall feature ⬇️
   # baseline: false
   # support:
   #   chrome: "142"
@@ -70,15 +67,3 @@ compat_features:
   - css.properties.interest-delay-start
   - css.properties.interest-delay-start.normal
   - css.properties.interest-delay.normal
-
-  # baseline: false
-  # support:
-  #   chrome: "145"
-  #   chrome_android: "145"
-  #   edge: "145"
-  - css.properties.appearance.base-select.listbox
-
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: false
-  # support: {}
-  - css.properties.appearance.base-select.multiple_dropdown
diff --git a/features/draft/spec/css-values-4.yml b/features/draft/spec/css-values-4.yml
index 32fb83d0219..750d16826b0 100644
--- a/features/draft/spec/css-values-4.yml
+++ b/features/draft/spec/css-values-4.yml
@@ -1,7 +1,18 @@
-draft_date: 2025-10-08
+draft_date: 2026-05-08
 name: CSS Values and Units Module Level 4
 description: TODO
 spec: https://drafts.csswg.org/css-values-4/
 compat_features:
   - css.types.calc.typed_division_produces_unitless_number
   - css.types.sign.typed_division_produces_unitless_number
+
+# The following features in the spec are already part of web-features:
+# - Multi-column layout:
+#   - css.properties.column-gap.multicol_context.percentage_values
+# - Grid:
+#   - css.properties.gap.grid_context.percentage_values
+# - Transitions (CSS):
+#   - css.properties.transition-property.IDENT_value
+# - Media queries:
+#   - css.types.ratio
+#   - css.types.ratio.number_value
diff --git a/features/draft/spec/css-values-5.yml b/features/draft/spec/css-values-5.yml
index b4cfeeadcb7..ba6dff4c3f1 100644
--- a/features/draft/spec/css-values-5.yml
+++ b/features/draft/spec/css-values-5.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-05-04
+draft_date: 2026-05-08
 name: CSS Values and Units Module Level 5
 description: TODO
 spec: https://drafts.csswg.org/css-values-5/
@@ -54,7 +54,6 @@ compat_features:
   - css.properties.perspective-origin.y-end
   - css.properties.perspective-origin.y-start
   - css.types.attr.attr-name_accepts_namespaces
-  - css.types.if.style
   - css.types.random.dashed-ident
   - css.types.random.element-shared
   - css.types.random.step
@@ -62,16 +61,36 @@ compat_features:
 # The following features in the spec are already part of web-features:
 # - Media queries:
 #   - css.at-rules.media.calc
+# - Multi-column layout:
+#   - css.properties.column-gap.multicol_context.calc_values
 # - Content:
 #   - css.properties.content.url
 #   - css.types.string
 #   - css.types.string.unicode_escaped_characters
+# - font-stretch:
+#   - css.properties.font-stretch.percentage
+# - font-weight:
+#   - css.properties.font-weight.number
+# - Grid:
+#   - css.properties.gap.grid_context.calc_values
 # - interpolate-size:
 #   - css.properties.interpolate-size
 #   - css.properties.interpolate-size.allow-keywords
 #   - css.properties.interpolate-size.numeric-only
+# - List style:
+#   - css.properties.list-style-type.string
+# - opacity:
+#   - css.properties.opacity.percentages
+#   - css.types.number
+#   - css.types.number.scientific_notation
+# - shape-outside:
+#   - css.properties.shape-image-threshold.percentages
 # - tab-size:
 #   - css.properties.tab-size.length
+# - text-decoration:
+#   - css.properties.text-decoration-thickness.percentage
+# - Custom ellipses:
+#   - css.properties.text-overflow.string
 # - abs() and sign():
 #   - css.types.abs
 #   - css.types.sign
@@ -113,11 +132,8 @@ compat_features:
 #   - css.types.attr.type_function.url
 # - calc():
 #   - css.types.calc
-#   - css.types.calc.gradient_color_stops
 #   - css.types.calc.nested
 #   - css.types.calc.number_values
-# - Relative colors:
-#   - css.types.calc.color_component
 # - calc() keywords:
 #   - css.types.calc-keyword
 #   - css.types.calc-keyword.NaN
@@ -130,6 +146,21 @@ compat_features:
 #   - css.types.clamp
 #   - css.types.max
 #   - css.types.min
+# - color():
+#   - css.types.color.color.mixed_type_parameters
+# - HSL:
+#   - css.types.color.hsl.mixed_type_parameters
+# - HWB:
+#   - css.types.color.hwb.mixed_type_parameters
+# - Lab and LCH:
+#   - css.types.color.lab.mixed_type_parameters
+#   - css.types.color.lch.mixed_type_parameters
+# - Oklab and OkLCh:
+#   - css.types.color.oklab.mixed_type_parameters
+#   - css.types.color.oklch.mixed_type_parameters
+# - RGB:
+#   - css.types.color.rgb.float_values
+#   - css.types.color.rgb.mixed_type_parameters
 # - Width and height:
 #   - css.types.dimension
 #   - css.types.length
@@ -141,6 +172,9 @@ compat_features:
 #   - css.types.log
 #   - css.types.pow
 #   - css.types.sqrt
+# - Gradients:
+#   - css.types.gradient.linear-gradient.unitless_0_angle
+#   - css.types.gradient.repeating-linear-gradient.unitless_0_angle
 # - if():
 #   - css.types.if
 # - z-index:
@@ -151,8 +185,6 @@ compat_features:
 #   - css.types.length.cap
 # - ch unit:
 #   - css.types.length.ch
-# - Container queries:
-#   - css.types.length.container_query_length_units
 # - em unit:
 #   - css.types.length.em
 # - ex unit:
@@ -191,9 +223,6 @@ compat_features:
 #   - css.types.rem.mixed_type_parameters
 #   - css.types.round
 #   - css.types.round.mixed_type_parameters
-# - opacity:
-#   - css.types.number
-#   - css.types.number.scientific_notation
 # - progress():
 #   - css.types.progress
 # - random():
diff --git a/features/draft/spec/css-values-5.yml.dist b/features/draft/spec/css-values-5.yml.dist
index ba12a0e0735..0555aa30ac3 100644
--- a/features/draft/spec/css-values-5.yml.dist
+++ b/features/draft/spec/css-values-5.yml.dist
@@ -38,13 +38,6 @@ compat_features:
   - css.properties.offset.right
   - css.properties.offset.top
 
-  # baseline: false
-  # support:
-  #   chrome: "137"
-  #   chrome_android: "137"
-  #   edge: "137"
-  - css.types.if.style
-
   # baseline: false
   # support:
   #   safari: "26"
diff --git a/features/draft/spec/css2.yml b/features/draft/spec/css2.yml
index f5f02e4f72b..9a7f0ed2394 100644
--- a/features/draft/spec/css2.yml
+++ b/features/draft/spec/css2.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-12-08
+draft_date: 2026-05-08
 name: Cascading Style Sheets Level 2
 description: TODO
 spec: https://drafts.csswg.org/css2/
@@ -23,7 +23,6 @@ compat_features:
 #   - css.properties.caption-side
 #   - css.properties.caption-side.bottom
 #   - css.properties.caption-side.top
-#   - css.properties.caption-side.writing-mode_relative_values
 #   - css.properties.empty-cells
 #   - css.properties.empty-cells.hide
 #   - css.properties.empty-cells.show
diff --git a/features/draft/spec/dom.yml b/features/draft/spec/dom.yml
index 129a5bda47b..cb9ea8a89c2 100644
--- a/features/draft/spec/dom.yml
+++ b/features/draft/spec/dom.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-04-14
+draft_date: 2026-05-08
 name: DOM
 description: TODO
 spec: https://dom.spec.whatwg.org/
@@ -13,9 +13,7 @@ compat_features:
   - api.Document.createElementNS.html_name_validity
   - api.Document.createElementNS.options_parameter.customElementRegistry_option
   - api.Document.createElementNS.options_parameter.options_is_parameter
-  - api.Element.setAttribute.enforces_trusted_types
   - api.Element.setAttribute.html_name_validity
-  - api.Element.setAttributeNS.enforces_trusted_types
   - api.Element.setAttributeNodeNS.html_name_validity
   - api.Element.toggleAttribute.html_name_validity
 
@@ -373,8 +371,6 @@ compat_features:
 #   - api.Document.customElementRegistry
 #   - api.Element.customElementRegistry
 #   - api.ShadowRoot.customElementRegistry
-# - Feature policy:
-#   - api.Document.featurePolicy
 # - moveBefore():
 #   - api.Document.moveBefore
 #   - api.DocumentFragment.moveBefore
@@ -385,7 +381,6 @@ compat_features:
 #   - api.HTMLSlotElement.slotchange_event
 #   - api.Text.assignedSlot
 #   - html.elements.slot
-#   - html.elements.slot.name
 #   - html.global_attributes.slot
 # - Shadow DOM:
 #   - api.Element.attachShadow
@@ -421,6 +416,8 @@ compat_features:
 #   - api.MutationRecord.type
 # - Imperative slot assignment:
 #   - api.ShadowRoot.slotAssignment
+# - beforeunload:
+#   - api.Window.beforeunload_event.preventdefault_activation
 # - XSLT:
 #   - api.XSLTProcessor
 #   - api.XSLTProcessor.XSLTProcessor
diff --git a/features/draft/spec/dom.yml.dist b/features/draft/spec/dom.yml.dist
index 3746cc72b1e..35ceb4da5d5 100644
--- a/features/draft/spec/dom.yml.dist
+++ b/features/draft/spec/dom.yml.dist
@@ -17,16 +17,6 @@ compat_features:
   #   safari_ios: "26"
   - api.Document.createElement.options_parameter.options_is_parameter
 
-  # baseline: false
-  # support:
-  #   chrome: "83"
-  #   chrome_android: "83"
-  #   edge: "83"
-  #   safari: "26"
-  #   safari_ios: "26"
-  - api.Element.setAttribute.enforces_trusted_types
-  - api.Element.setAttributeNS.enforces_trusted_types
-
   # baseline: false
   # support:
   #   chrome: "143"
diff --git a/features/draft/spec/ecmascript.yml b/features/draft/spec/ecmascript.yml
index c053418a266..65eba938c30 100644
--- a/features/draft/spec/ecmascript.yml
+++ b/features/draft/spec/ecmascript.yml
@@ -1,8 +1,9 @@
-draft_date: 2026-02-04
-name: ECMAScript® 2026 Language Specification
+draft_date: 2026-05-08
+name: ECMAScript® 2027 Language Specification
 description: TODO
 spec: https://tc39.es/ecma262/multipage/
 compat_features:
+  - javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_timeZone_parameter.utc_offset
   - javascript.operators.import.options_parameter
 
 # The following features in the spec are already part of web-features:
@@ -10,7 +11,6 @@ compat_features:
 #   - javascript.builtins.AggregateError
 #   - javascript.builtins.AggregateError.AggregateError
 #   - javascript.builtins.AggregateError.errors
-#   - javascript.builtins.AggregateError.serializable_object
 #   - javascript.builtins.Promise.any
 # - Array (initial support):
 #   - javascript.builtins.Array
@@ -108,31 +108,14 @@ compat_features:
 #   - javascript.builtins.Array.splice
 # - Intl:
 #   - javascript.builtins.Array.toLocaleString
-#   - javascript.builtins.Array.toLocaleString.locales_parameter
-#   - javascript.builtins.Array.toLocaleString.options_parameter
 #   - javascript.builtins.Date.toLocaleDateString
-#   - javascript.builtins.Date.toLocaleDateString.iana_time_zone_names
-#   - javascript.builtins.Date.toLocaleDateString.locales_parameter
-#   - javascript.builtins.Date.toLocaleDateString.options_parameter
 #   - javascript.builtins.Date.toLocaleString
-#   - javascript.builtins.Date.toLocaleString.iana_time_zone_names
-#   - javascript.builtins.Date.toLocaleString.locales_parameter
-#   - javascript.builtins.Date.toLocaleString.options_parameter
 #   - javascript.builtins.Date.toLocaleTimeString
-#   - javascript.builtins.Date.toLocaleTimeString.iana_time_zone_names
-#   - javascript.builtins.Date.toLocaleTimeString.locales_parameter
-#   - javascript.builtins.Date.toLocaleTimeString.options_parameter
 #   - javascript.builtins.Number.toLocaleString
-#   - javascript.builtins.Number.toLocaleString.locales_parameter
-#   - javascript.builtins.Number.toLocaleString.options_parameter
 #   - javascript.builtins.Object.toLocaleString
 #   - javascript.builtins.String.localeCompare
-#   - javascript.builtins.String.localeCompare.locales_parameter
-#   - javascript.builtins.String.localeCompare.options_parameter
 #   - javascript.builtins.String.toLocaleLowerCase
-#   - javascript.builtins.String.toLocaleLowerCase.locales_parameter
 #   - javascript.builtins.String.toLocaleUpperCase
-#   - javascript.builtins.String.toLocaleUpperCase.locales_parameter
 #   - javascript.builtins.TypedArray.toLocaleString
 # - Array by copy:
 #   - javascript.builtins.Array.toReversed
@@ -688,6 +671,7 @@ compat_features:
 #   - javascript.builtins.Object.toString
 #   - javascript.builtins.Object.valueOf
 #   - javascript.builtins.Object.values
+#   - javascript.grammar.shorthand_object_literals
 #   - javascript.operators.object_initializer
 #   - javascript.operators.object_initializer.computed_property_names
 #   - javascript.operators.object_initializer.shorthand_method_names
@@ -945,7 +929,6 @@ compat_features:
 #   - javascript.grammar.template_literals.template_literal_revision
 # - JSON import attributes:
 #   - javascript.grammar.trailing_commas.trailing_commas_in_dynamic_import
-#   - javascript.statements.import.import_attributes.type_json
 # - Unicode point escapes:
 #   - javascript.grammar.unicode_point_escapes
 # - Top-level await:
@@ -986,8 +969,6 @@ compat_features:
 # - Let and const:
 #   - javascript.statements.const
 #   - javascript.statements.let
-# - CSS import attributes:
-#   - javascript.statements.import.import_attributes.type_css
 # - JavaScript modules in service workers:
 #   - javascript.statements.import.service_worker_support
 # - Optional catch binding:
diff --git a/features/draft/spec/ecmascript.yml.dist b/features/draft/spec/ecmascript.yml.dist
index 46d5063ec4a..3f189aa94b9 100644
--- a/features/draft/spec/ecmascript.yml.dist
+++ b/features/draft/spec/ecmascript.yml.dist
@@ -5,12 +5,34 @@ status:
   baseline: low
   baseline_low_date: 2025-04-29
   support:
-    chrome: "91"
-    chrome_android: "91"
-    edge: "91"
+    chrome: "120"
+    chrome_android: "120"
+    edge: "120"
     firefox: "138"
     firefox_android: "138"
-    safari: "15"
-    safari_ios: "15"
+    safari: "17.4"
+    safari_ios: "17.4"
 compat_features:
+  # baseline: low
+  # baseline_low_date: 2024-03-05
+  # support:
+  #   chrome: "120"
+  #   chrome_android: "120"
+  #   edge: "120"
+  #   firefox: "121"
+  #   firefox_android: "121"
+  #   safari: "17.4"
+  #   safari_ios: "17.4"
+  - javascript.builtins.Intl.DateTimeFormat.DateTimeFormat.options_parameter.options_timeZone_parameter.utc_offset
+
+  # baseline: low
+  # baseline_low_date: 2025-04-29
+  # support:
+  #   chrome: "91"
+  #   chrome_android: "91"
+  #   edge: "91"
+  #   firefox: "138"
+  #   firefox_android: "138"
+  #   safari: "15"
+  #   safari_ios: "15"
   - javascript.operators.import.options_parameter
diff --git a/features/draft/spec/element-timing.yml b/features/draft/spec/element-timing.yml
deleted file mode 100644
index 36b40ca5210..00000000000
--- a/features/draft/spec/element-timing.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-draft_date: 2025-02-10
-name: Element Timing API
-description: TODO
-spec: https://w3c.github.io/element-timing/
-compat_features:
-  - api.PerformanceElementTiming.renderTime.cross-origin
-
-# The following features in the spec are already part of web-features:
-# - Element timing:
-#   - api.Element.elementTiming
-#   - api.PerformanceElementTiming
-#   - api.PerformanceElementTiming.element
-#   - api.PerformanceElementTiming.id
-#   - api.PerformanceElementTiming.identifier
-#   - api.PerformanceElementTiming.intersectionRect
-#   - api.PerformanceElementTiming.loadTime
-#   - api.PerformanceElementTiming.naturalHeight
-#   - api.PerformanceElementTiming.naturalWidth
-#   - api.PerformanceElementTiming.renderTime
-#   - api.PerformanceElementTiming.toJSON
-#   - api.PerformanceElementTiming.url
diff --git a/features/draft/spec/element-timing.yml.dist b/features/draft/spec/element-timing.yml.dist
deleted file mode 100644
index da2142f2309..00000000000
--- a/features/draft/spec/element-timing.yml.dist
+++ /dev/null
@@ -1,11 +0,0 @@
-# Generated from: element-timing.yml
-# Do not edit this file by hand. Edit the source file instead!
-
-status:
-  baseline: false
-  support:
-    chrome: "133"
-    chrome_android: "133"
-    edge: "133"
-compat_features:
-  - api.PerformanceElementTiming.renderTime.cross-origin
diff --git a/features/draft/spec/ext-disjoint-timer-query-webgl2.yml b/features/draft/spec/ext-disjoint-timer-query-webgl2.yml
new file mode 100644
index 00000000000..d813f0869a6
--- /dev/null
+++ b/features/draft/spec/ext-disjoint-timer-query-webgl2.yml
@@ -0,0 +1,7 @@
+draft_date: 2026-05-08
+name: WebGL EXT_disjoint_timer_query_webgl2 Extension Specification
+description: TODO
+spec: https://registry.khronos.org/webgl/extensions/EXT_disjoint_timer_query_webgl2/
+compat_features:
+  - api.EXT_disjoint_timer_query_webgl2
+  - api.EXT_disjoint_timer_query_webgl2.queryCounterEXT
diff --git a/features/draft/spec/ext-disjoint-timer-query-webgl2.yml.dist b/features/draft/spec/ext-disjoint-timer-query-webgl2.yml.dist
new file mode 100644
index 00000000000..5d4e4577491
--- /dev/null
+++ b/features/draft/spec/ext-disjoint-timer-query-webgl2.yml.dist
@@ -0,0 +1,11 @@
+# Generated from: ext-disjoint-timer-query-webgl2.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: false
+  support:
+    chrome: "70"
+    edge: "80"
+compat_features:
+  - api.EXT_disjoint_timer_query_webgl2
+  - api.EXT_disjoint_timer_query_webgl2.queryCounterEXT
diff --git a/features/draft/spec/fenced-frame.yml b/features/draft/spec/fenced-frame.yml
index 05f716419c0..c80b2586dfb 100644
--- a/features/draft/spec/fenced-frame.yml
+++ b/features/draft/spec/fenced-frame.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-09-30
+draft_date: 2026-05-08
 name: Fenced Frame
 description: TODO
 spec: https://wicg.github.io/fenced-frame/
@@ -24,5 +24,6 @@ compat_features:
 #   - html.elements.fencedframe
 #   - html.elements.fencedframe.allow
 #   - http.headers.Content-Security-Policy.fenced-frame-src
+#   - http.headers.Sec-Fetch-Dest.fencedframe
 # - Speculation rules:
 #   - http.headers.Supports-Loading-Mode.fenced-frame
diff --git a/features/draft/spec/fetch.yml b/features/draft/spec/fetch.yml
index 88a9be99416..236c707eeea 100644
--- a/features/draft/spec/fetch.yml
+++ b/features/draft/spec/fetch.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-05-04
+draft_date: 2026-05-08
 name: Fetch
 description: TODO
 spec: https://fetch.spec.whatwg.org/
@@ -6,7 +6,9 @@ compat_features:
   - api.Request.Request.options_parameter.duplex
   - api.fetch.options_parameter.body.accepts_readablestream
   - api.fetch.options_parameter.duplex
+  - http.headers.Content-Length.cors_response_safelist
   - http.headers.Cross-Origin-Resource-Policy
+  - http.headers.Range.cors_safe
   - http.headers.X-Content-Type-Options
 
 # The following features in the spec are already part of web-features:
@@ -94,14 +96,14 @@ compat_features:
 #   - api.fetch.options_parameter.body
 #   - api.fetch.options_parameter.keepalive
 #   - api.fetch.options_parameter.referrerPolicy
+# - Custom highlights:
+#   - api.Highlight.delete
+#   - api.Highlight.has
 # - Fetch priority:
 #   - api.Request.Request.options_parameter.priority
 #   - api.fetch.options_parameter.priority
 # - Fetch upload streams:
 #   - api.Request.body
-# - Speculation rules:
-#   - api.Request.destination.speculationrules
-#   - http.headers.Sec-Purpose.speculationrules
 # - Fetch form data:
 #   - api.Request.formData
 #   - api.Response.formData
@@ -112,6 +114,12 @@ compat_features:
 #   - api.fetch.options_parameter.signal
 # - XMLHttpRequest:
 #   - api.XMLHttpRequest.authorization_removed_cross_origin
+#   - api.XMLHttpRequest.getAllResponseHeaders.header_names_lowercase
+#   - api.XMLHttpRequest.send.body_ArrayBufferView_type
+#   - api.XMLHttpRequest.send.body_ArrayBuffer_type
+#   - api.XMLHttpRequest.send.body_Blob_type
+#   - api.XMLHttpRequest.send.body_FormData_type
+#   - api.XMLHttpRequest.send.body_URLSearchParams_type
 # - CORS:
 #   - http.headers.Access-Control-Allow-Credentials
 #   - http.headers.Access-Control-Allow-Headers
diff --git a/features/draft/spec/fetch.yml.dist b/features/draft/spec/fetch.yml.dist
index e4ddae8e040..f85e4433d8f 100644
--- a/features/draft/spec/fetch.yml.dist
+++ b/features/draft/spec/fetch.yml.dist
@@ -33,6 +33,32 @@ compat_features:
   #   safari_ios: "12"
   - http.headers.Cross-Origin-Resource-Policy
 
+  # baseline: high
+  # baseline_low_date: 2021-03-23
+  # baseline_high_date: 2023-09-23
+  # support:
+  #   chrome: "76"
+  #   chrome_android: "76"
+  #   edge: "79"
+  #   firefox: "87"
+  #   firefox_android: "87"
+  #   safari: "12.1"
+  #   safari_ios: "12.2"
+  - http.headers.Content-Length.cors_response_safelist
+
+  # baseline: high
+  # baseline_low_date: 2023-08-29
+  # baseline_high_date: 2026-02-28
+  # support:
+  #   chrome: "99"
+  #   chrome_android: "99"
+  #   edge: "99"
+  #   firefox: "117"
+  #   firefox_android: "117"
+  #   safari: "16"
+  #   safari_ios: "16"
+  - http.headers.Range.cors_safe
+
   # baseline: false
   # support:
   #   chrome: "105"
diff --git a/features/draft/spec/gamepad.yml b/features/draft/spec/gamepad.yml
index bbc0b1a68d1..0a5c173b9c8 100644
--- a/features/draft/spec/gamepad.yml
+++ b/features/draft/spec/gamepad.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-03-02
+draft_date: 2026-05-08
 name: Gamepad
 description: TODO
 spec: https://w3c.github.io/gamepad/
@@ -14,18 +14,14 @@ compat_features:
 #   - api.Gamepad.id
 #   - api.Gamepad.index
 #   - api.Gamepad.mapping
-#   - api.Gamepad.secure_context_required
 #   - api.Gamepad.timestamp
 #   - api.GamepadButton
 #   - api.GamepadButton.pressed
-#   - api.GamepadButton.secure_context_required
 #   - api.GamepadButton.value
 #   - api.GamepadEvent
 #   - api.GamepadEvent.GamepadEvent
 #   - api.GamepadEvent.gamepad
-#   - api.GamepadEvent.secure_context_required
 #   - api.Navigator.getGamepads
-#   - api.Navigator.getGamepads.secure_context_required
 #   - api.Window.gamepadconnected_event
 #   - api.Window.gamepaddisconnected_event
 #   - html.elements.iframe.allow.gamepad
@@ -39,6 +35,5 @@ compat_features:
 #   - api.GamepadHapticActuator.playEffect.params_rightTrigger_parameter
 #   - api.GamepadHapticActuator.playEffect.type_trigger-rumble
 #   - api.GamepadHapticActuator.reset
-#   - api.GamepadHapticActuator.secure_context_required
 # - Gamepad touch buttons:
 #   - api.GamepadButton.touched
diff --git a/features/draft/spec/html.yml b/features/draft/spec/html.yml
index cbd93176ec6..8eb6eb5ecca 100644
--- a/features/draft/spec/html.yml
+++ b/features/draft/spec/html.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-05-04
+draft_date: 2026-05-08
 name: HTML
 description: TODO
 spec: https://html.spec.whatwg.org/multipage/
@@ -17,7 +17,6 @@ compat_features:
   - api.HTMLAllCollection.length
   - api.HTMLAllCollection.namedItem
   - api.HTMLBaseElement.href.forbid_data_javascript_urls
-  - api.HTMLBaseElement.href.forbid_special_characters
   - api.HTMLButtonElement.command.request-close
   - api.HTMLButtonElement.commandForElement.implicit_anchor_reference
   - api.HTMLCanvasElement.getContext.2d_context.options_colorType_parameter
@@ -31,7 +30,6 @@ compat_features:
   - api.HTMLElement.togglePopover.options_force_parameter
   - api.HTMLImageElement.currentSrc
   - api.HTMLImageElement.sizes.auto
-  - api.HTMLInputElement.showPicker.autocomplete_input
   - api.HTMLInputElement.showPicker.datalist_input
   - api.HTMLInputElement.showPicker.month_input
   - api.HTMLInputElement.showPicker.time_input
@@ -60,7 +58,6 @@ compat_features:
   - api.NavigateEvent.sourceElement
   - api.NavigationTransition.committed
   - api.NavigationTransition.to
-  - api.Navigator.authentication
   - api.Navigator.oscpu
   - api.Navigator.taintEnabled
   - api.Navigator.vendorSub
@@ -81,7 +78,6 @@ compat_features:
   - api.TrackEvent.TrackEvent
   - api.TrackEvent.track
   - api.Window.originAgentCluster
-  - api.Window.postMessage.options_delegate_parameter
   - api.Window.postMessage.transfer_parameter
   - api.Window.rejectionhandled_event
   - api.Window.unhandledrejection_event
@@ -101,14 +97,11 @@ compat_features:
   - html.elements.form.autocomplete.webauthn
   - html.elements.h1.no_ua_styles_in_article_aside_nav_section
   - html.elements.hr.hr_in_select
-  - html.elements.html.xmlns
   - html.elements.iframe.allow.autoplay
   - html.elements.iframe.allow.cross-origin-isolated
   - html.elements.iframe.allow.document-domain
-  - html.elements.iframe.allow.wildcards
   - html.elements.iframe.sandbox.allow-orientation-lock
   - html.elements.iframe.sandbox.allow-pointer-lock
-  - html.elements.img.usemap.case_sensitive
   - html.elements.input.autocomplete
   - html.elements.input.type_color.accepts_css_colors
   - html.elements.input.type_range.labeled_values
@@ -133,7 +126,6 @@ compat_features:
   - html.global_attributes.id
   - http.headers.Cross-Origin-Embedder-Policy
   - http.headers.Cross-Origin-Embedder-Policy.credentialless
-  - http.headers.Cross-Origin-Embedder-Policy.report-to_parameter
   - http.headers.Cross-Origin-Opener-Policy
   - http.headers.Cross-Origin-Opener-Policy.noopener-allow-popups
   - http.headers.Cross-Origin-Opener-Policy.report-to_parameter
@@ -143,6 +135,7 @@ compat_features:
   - http.headers.Permissions-Policy.cross-origin-isolated
   - http.headers.Refresh
   - http.headers.X-Frame-Options
+  - http.headers.X-Frame-Options.DENY
   - http.headers.X-Frame-Options.SAMEORIGIN
   - http.status.103
   - http.status.103.preconnect
@@ -191,7 +184,6 @@ compat_features:
 #   - api.BeforeUnloadEvent
 #   - api.BeforeUnloadEvent.user_interaction
 #   - api.Window.beforeunload_event
-#   - api.Window.beforeunload_event.preventdefault_activation
 # - BroadcastChannel:
 #   - api.BroadcastChannel
 #   - api.BroadcastChannel.BroadcastChannel
@@ -331,7 +323,11 @@ compat_features:
 #   - api.SVGElement.tabIndex
 #   - api.SVGImageElement.decode
 #   - api.SVGImageElement.decoding
+#   - api.SVGScriptElement.async
+#   - api.SVGScriptElement.defer
 #   - svg.elements.image.decoding
+#   - svg.elements.script.async
+#   - svg.elements.script.defer
 # - contextlost and contextrestored:
 #   - api.CanvasRenderingContext2D.isContextLost
 #   - api.HTMLCanvasElement.contextlost_event
@@ -492,7 +488,6 @@ compat_features:
 #   - api.DedicatedWorkerGlobalScope.name
 #   - api.Worker
 #   - api.Worker.Worker
-#   - api.Worker.Worker.mime_checks
 #   - api.Worker.Worker.options_name_parameter
 #   - api.Worker.error_event
 #   - api.Worker.terminate
@@ -500,7 +495,6 @@ compat_features:
 #   - api.WorkerGlobalScope
 #   - api.WorkerGlobalScope.error_event
 #   - api.WorkerGlobalScope.importScripts
-#   - api.WorkerGlobalScope.importScripts.mime_checks
 #   - api.WorkerGlobalScope.location
 #   - api.WorkerGlobalScope.navigator
 #   - api.WorkerGlobalScope.rejectionhandled_event
@@ -544,9 +538,6 @@ compat_features:
 #   - api.Document.open
 # - Cookies:
 #   - api.Document.cookie
-# - Feature policy:
-#   - api.Document.featurePolicy
-#   - api.HTMLIFrameElement.featurePolicy
 # - Page visibility:
 #   - api.Document.hidden
 #   - api.Document.visibilityState
@@ -597,9 +588,6 @@ compat_features:
 #   - api.Element.mouseover_event
 #   - api.Element.mouseup_event
 #   - api.HTMLElement.click
-# - Pointer Events:
-#   - api.Element.auxclick_event.type_pointerevent
-#   - api.Element.click_event.type_pointerevent
 # - hidden="until-found":
 #   - api.Element.beforematch_event
 #   - html.global_attributes.hidden.until-found
@@ -689,6 +677,8 @@ compat_features:
 #   - html.elements.form.novalidate
 #   - html.elements.form.rel
 #   - html.elements.form.target
+# - WebGPU:
+#   - api.GPUDevice.importExternalTexture.color_space_display-p3
 # - <a>:
 #   - api.HTMLAnchorElement
 #   - api.HTMLAnchorElement.hash
@@ -711,8 +701,6 @@ compat_features:
 #   - api.HTMLAnchorElement.username
 #   - html.elements.a
 #   - html.elements.a.href
-#   - html.elements.a.href.href_sms
-#   - html.elements.a.href.href_top
 #   - html.elements.a.hreflang
 #   - html.elements.a.implicit_noopener
 #   - html.elements.a.rel
@@ -732,53 +720,17 @@ compat_features:
 #   - html.elements.area.ping
 # - Referrer policy:
 #   - api.HTMLAnchorElement.referrerPolicy
-#   - api.HTMLAnchorElement.referrerPolicy.no-referrer-when-downgrade
-#   - api.HTMLAnchorElement.referrerPolicy.origin-when-cross-origin
-#   - api.HTMLAnchorElement.referrerPolicy.unsafe-url
 #   - api.HTMLAreaElement.referrerPolicy
-#   - api.HTMLAreaElement.referrerPolicy.no-referrer-when-downgrade
-#   - api.HTMLAreaElement.referrerPolicy.origin-when-cross-origin
-#   - api.HTMLAreaElement.referrerPolicy.unsafe-url
 #   - api.HTMLIFrameElement.referrerPolicy
-#   - api.HTMLIFrameElement.referrerPolicy.no-referrer-when-downgrade
-#   - api.HTMLIFrameElement.referrerPolicy.origin-when-cross-origin
-#   - api.HTMLIFrameElement.referrerPolicy.unsafe-url
 #   - api.HTMLImageElement.referrerPolicy
-#   - api.HTMLImageElement.referrerPolicy.no-referrer-when-downgrade
-#   - api.HTMLImageElement.referrerPolicy.origin-when-cross-origin
-#   - api.HTMLImageElement.referrerPolicy.unsafe-url
 #   - api.HTMLLinkElement.referrerPolicy
-#   - api.HTMLLinkElement.referrerPolicy.no-referrer-when-downgrade
-#   - api.HTMLLinkElement.referrerPolicy.origin-when-cross-origin
-#   - api.HTMLLinkElement.referrerPolicy.unsafe-url
 #   - api.HTMLScriptElement.referrerPolicy
-#   - api.HTMLScriptElement.referrerPolicy.no-referrer-when-downgrade
-#   - api.HTMLScriptElement.referrerPolicy.origin-when-cross-origin
-#   - api.HTMLScriptElement.referrerPolicy.unsafe-url
 #   - html.elements.a.referrerpolicy
-#   - html.elements.a.referrerpolicy.no-referrer-when-downgrade
-#   - html.elements.a.referrerpolicy.origin-when-cross-origin
-#   - html.elements.a.referrerpolicy.unsafe-url
 #   - html.elements.area.referrerpolicy
-#   - html.elements.area.referrerpolicy.no-referrer-when-downgrade
-#   - html.elements.area.referrerpolicy.origin-when-cross-origin
-#   - html.elements.area.referrerpolicy.unsafe-url
 #   - html.elements.iframe.referrerpolicy
-#   - html.elements.iframe.referrerpolicy.no-referrer-when-downgrade
-#   - html.elements.iframe.referrerpolicy.origin-when-cross-origin
-#   - html.elements.iframe.referrerpolicy.unsafe-url
 #   - html.elements.img.referrerpolicy
-#   - html.elements.img.referrerpolicy.no-referrer-when-downgrade
-#   - html.elements.img.referrerpolicy.origin-when-cross-origin
-#   - html.elements.img.referrerpolicy.unsafe-url
 #   - html.elements.link.referrerpolicy
-#   - html.elements.link.referrerpolicy.no-referrer-when-downgrade
-#   - html.elements.link.referrerpolicy.origin-when-cross-origin
-#   - html.elements.link.referrerpolicy.unsafe-url
 #   - html.elements.script.referrerpolicy
-#   - html.elements.script.referrerpolicy.no-referrer-when-downgrade
-#   - html.elements.script.referrerpolicy.origin-when-cross-origin
-#   - html.elements.script.referrerpolicy.unsafe-url
 # - Image maps:
 #   - api.HTMLAreaElement
 #   - api.HTMLAreaElement.alt
@@ -2193,12 +2145,29 @@ compat_features:
 #   - api.PaintRenderingContext2D.translate
 # - Selection:
 #   - api.Range.createContextualFragment
-# - Reporting API:
+# - COEP violation reports:
 #   - api.ReportingObserver.ReportingObserver.options_parameter.types_property.coep
+#   - http.headers.Cross-Origin-Embedder-Policy.report-to_parameter
+# - Speculation rules:
+#   - api.Request.destination.speculationrules
+#   - html.elements.script.type.speculationrules
+#   - html.elements.script.type.speculationrules.eagerness
+#   - html.elements.script.type.speculationrules.expects_no_vary_search
+#   - html.elements.script.type.speculationrules.prefetch
+#   - html.elements.script.type.speculationrules.referrer_policy
+#   - html.elements.script.type.speculationrules.relative_to
+#   - html.elements.script.type.speculationrules.requires
+#   - html.elements.script.type.speculationrules.requires.anonymous-client-ip-when-cross-origin
+#   - html.elements.script.type.speculationrules.source_optional
+#   - html.elements.script.type.speculationrules.tag
+#   - html.elements.script.type.speculationrules.urls
+#   - html.elements.script.type.speculationrules.where
+#   - http.headers.Sec-Purpose.speculationrules
+#   - http.headers.Sec-Speculation-Tags
+#   - http.headers.Speculation-Rules
 # - Shared worker:
 #   - api.SharedWorker
 #   - api.SharedWorker.SharedWorker
-#   - api.SharedWorker.SharedWorker.mime_checks
 #   - api.SharedWorker.SharedWorker.options_name_parameter
 #   - api.SharedWorker.error_event
 #   - api.SharedWorker.port
@@ -2251,7 +2220,6 @@ compat_features:
 #   - api.Window.name
 #   - api.Window.open
 #   - api.Window.open.features_parameter_popup
-#   - api.Window.open.once_per_event
 #   - api.Window.opener
 #   - api.Window.parent
 #   - api.Window.self
@@ -2275,6 +2243,8 @@ compat_features:
 # - JavaScript modules in workers:
 #   - api.Worker.Worker.ecmascript_modules
 #   - api.Worker.Worker.options_type_parameter
+#   - javascript.operators.import.worker_support
+#   - javascript.statements.import.worker_support
 # - AudioWorklet:
 #   - api.Worklet
 #   - api.Worklet.addModule
@@ -2284,6 +2254,7 @@ compat_features:
 #   - html.elements.script.nomodule
 #   - html.elements.script.type.module
 #   - javascript.operators.import_meta.resolve
+#   - javascript.statements.import.worklet_support
 # - XMLSerializer:
 #   - api.XMLSerializer
 #   - api.XMLSerializer.XMLSerializer
@@ -2353,8 +2324,6 @@ compat_features:
 #   - css.selectors.link
 #   - css.selectors.link.not_match_link
 #   - css.selectors.visited
-#   - css.selectors.visited.not_match_link
-#   - css.selectors.visited.privacy_measures
 # - :modal:
 #   - css.selectors.modal
 # - :open:
@@ -2370,10 +2339,6 @@ compat_features:
 # - :user-valid and :user-invalid:
 #   - css.selectors.user-invalid
 #   - css.selectors.user-valid
-# - <fencedframe>:
-#   - html.elements.a.target.unfencedTop
-#   - html.elements.fencedframe.height
-#   - html.elements.fencedframe.width
 # - Scroll to text fragment:
 #   - html.elements.a.text_fragments
 # - <abbr>:
@@ -2401,6 +2366,9 @@ compat_features:
 #   - html.elements.dfn
 # - <em>:
 #   - html.elements.em
+# - <fencedframe>:
+#   - html.elements.fencedframe.height
+#   - html.elements.fencedframe.width
 # - <figure> and <figcaption>:
 #   - html.elements.figcaption
 #   - html.elements.figure
@@ -2434,8 +2402,6 @@ compat_features:
 #   - html.elements.input.type_radio
 # - <input type="range">:
 #   - html.elements.input.type_range
-#   - html.elements.input.type_range.tick_marks
-#   - html.elements.input.type_range.vertical_orientation
 # - <input type="reset">:
 #   - html.elements.input.type_reset
 # - <input type="search">:
@@ -2490,21 +2456,6 @@ compat_features:
 #   - html.elements.samp
 # - Import maps:
 #   - html.elements.script.type.importmap
-# - Speculation rules:
-#   - html.elements.script.type.speculationrules
-#   - html.elements.script.type.speculationrules.eagerness
-#   - html.elements.script.type.speculationrules.expects_no_vary_search
-#   - html.elements.script.type.speculationrules.prefetch
-#   - html.elements.script.type.speculationrules.referrer_policy
-#   - html.elements.script.type.speculationrules.relative_to
-#   - html.elements.script.type.speculationrules.requires
-#   - html.elements.script.type.speculationrules.requires.anonymous-client-ip-when-cross-origin
-#   - html.elements.script.type.speculationrules.source_optional
-#   - html.elements.script.type.speculationrules.tag
-#   - html.elements.script.type.speculationrules.urls
-#   - html.elements.script.type.speculationrules.where
-#   - http.headers.Sec-Speculation-Tags
-#   - http.headers.Speculation-Rules
 # - <search>:
 #   - html.elements.search
 # - <section>:
@@ -2533,5 +2484,11 @@ compat_features:
 #   - html.elements.wbr
 # - style (attribute):
 #   - html.global_attributes.style
+# - Promise.any():
+#   - javascript.builtins.AggregateError.serializable_object
 # - Promise (initial support):
 #   - javascript.builtins.Promise.incumbent_settings_object_tracking
+# - CSS import attributes:
+#   - javascript.statements.import.import_attributes.type_css
+# - JSON import attributes:
+#   - javascript.statements.import.import_attributes.type_json
diff --git a/features/draft/spec/html.yml.dist b/features/draft/spec/html.yml.dist
index 036d1b196d1..5a576ef1d3b 100644
--- a/features/draft/spec/html.yml.dist
+++ b/features/draft/spec/html.yml.dist
@@ -17,7 +17,6 @@ compat_features:
   #   safari: "1"
   #   safari_ios: "1"
   - api.HTMLElement.error_event
-  - html.elements.html.xmlns
   - http.headers.Refresh
 
   # baseline: high
@@ -144,6 +143,7 @@ compat_features:
   #   safari: "4"
   #   safari_ios: "3.2"
   - http.headers.X-Frame-Options
+  - http.headers.X-Frame-Options.DENY
   - http.headers.X-Frame-Options.SAMEORIGIN
 
   # baseline: high
@@ -441,19 +441,6 @@ compat_features:
   - api.ShadowRoot.activeElement
   - api.ShadowRoot.innerHTML
 
-  # baseline: high
-  # baseline_low_date: 2020-01-15
-  # baseline_high_date: 2022-07-15
-  # support:
-  #   chrome: "58"
-  #   chrome_android: "58"
-  #   edge: "79"
-  #   firefox: "51"
-  #   firefox_android: "53"
-  #   safari: ≤11
-  #   safari_ios: ≤11
-  - html.elements.img.usemap.case_sensitive
-
   # baseline: high
   # baseline_low_date: 2020-01-15
   # baseline_high_date: 2022-07-15
@@ -617,18 +604,6 @@ compat_features:
   #   safari_ios: "16.4"
   - html.elements.form.autocomplete.webauthn
 
-  # baseline: low
-  # baseline_low_date: 2024-07-09
-  # support:
-  #   chrome: "61"
-  #   chrome_android: "61"
-  #   edge: "79"
-  #   firefox: "128"
-  #   firefox_android: "128"
-  #   safari: "16"
-  #   safari_ios: "16"
-  - api.HTMLBaseElement.href.forbid_special_characters
-
   # baseline: low
   # baseline_low_date: 2025-04-29
   # support:
@@ -963,29 +938,13 @@ compat_features:
   #   chrome: "96"
   #   chrome_android: "96"
   #   edge: "96"
-  - http.headers.Cross-Origin-Embedder-Policy.report-to_parameter
   - http.headers.Cross-Origin-Opener-Policy.report-to_parameter
 
-  # baseline: false
-  # support:
-  #   chrome: "99"
-  #   chrome_android: "99"
-  #   edge: "99"
-  - api.HTMLInputElement.showPicker.autocomplete_input
-
-  # baseline: false
-  # support:
-  #   chrome: "100"
-  #   chrome_android: "100"
-  #   edge: "100"
-  - api.Window.postMessage.options_delegate_parameter
-
   # baseline: false
   # support:
   #   chrome: "108"
   #   chrome_android: "108"
   #   edge: "108"
-  - html.elements.iframe.allow.wildcards
   - html.elements.textarea.autocomplete.webauthn
 
   # baseline: false
@@ -1088,6 +1047,5 @@ compat_features:
   # ⬇️ Same status as overall feature ⬇️
   # baseline: false
   # support: {}
-  - api.Navigator.authentication
   - html.elements.template.shadowrootslotassignment
   - html.elements.track.kind.descriptions
diff --git a/features/draft/spec/largest-contentful-paint.yml b/features/draft/spec/largest-contentful-paint.yml
deleted file mode 100644
index cf8ffb5902b..00000000000
--- a/features/draft/spec/largest-contentful-paint.yml
+++ /dev/null
@@ -1,17 +0,0 @@
-draft_date: 2025-02-10
-name: Largest Contentful Paint
-description: TODO
-spec: https://w3c.github.io/largest-contentful-paint/
-compat_features:
-  - api.LargestContentfulPaint.renderTime.cross-origin
-
-# The following features in the spec are already part of web-features:
-# - Largest contentful paint (LCP):
-#   - api.LargestContentfulPaint
-#   - api.LargestContentfulPaint.element
-#   - api.LargestContentfulPaint.id
-#   - api.LargestContentfulPaint.loadTime
-#   - api.LargestContentfulPaint.renderTime
-#   - api.LargestContentfulPaint.size
-#   - api.LargestContentfulPaint.toJSON
-#   - api.LargestContentfulPaint.url
diff --git a/features/draft/spec/largest-contentful-paint.yml.dist b/features/draft/spec/largest-contentful-paint.yml.dist
deleted file mode 100644
index 2b0cf35c5b5..00000000000
--- a/features/draft/spec/largest-contentful-paint.yml.dist
+++ /dev/null
@@ -1,16 +0,0 @@
-# Generated from: largest-contentful-paint.yml
-# Do not edit this file by hand. Edit the source file instead!
-
-status:
-  baseline: low
-  baseline_low_date: 2025-12-12
-  support:
-    chrome: "133"
-    chrome_android: "133"
-    edge: "133"
-    firefox: "141"
-    firefox_android: "141"
-    safari: "26.2"
-    safari_ios: "26.2"
-compat_features:
-  - api.LargestContentfulPaint.renderTime.cross-origin
diff --git a/features/draft/spec/mathml-core.yml b/features/draft/spec/mathml-core.yml
index c42fd012b51..893d7e25d70 100644
--- a/features/draft/spec/mathml-core.yml
+++ b/features/draft/spec/mathml-core.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-03-09
+draft_date: 2026-05-08
 name: MathML Core
 description: TODO
 spec: https://w3c.github.io/mathml-core/
@@ -12,6 +12,7 @@ compat_features:
 # The following features in the spec are already part of web-features:
 # - MathML:
 #   - api.MathMLElement
+#   - css.properties.display.math
 #   - css.properties.math-depth
 #   - css.properties.math-shift
 #   - css.properties.math-style
diff --git a/features/draft/spec/mediacapture-streams.yml b/features/draft/spec/mediacapture-streams.yml
index 18694c6401b..59d69aff674 100644
--- a/features/draft/spec/mediacapture-streams.yml
+++ b/features/draft/spec/mediacapture-streams.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-10-21
+draft_date: 2026-05-08
 name: Media Capture and Streams
 description: TODO
 spec: https://w3c.github.io/mediacapture-main/
@@ -90,6 +90,8 @@ compat_features:
 #   - api.OverconstrainedError
 #   - api.OverconstrainedError.OverconstrainedError
 #   - api.OverconstrainedError.constraint
+#   - api.Permissions.permission_camera
+#   - api.Permissions.permission_microphone
 #   - html.elements.iframe.allow.camera
 #   - html.elements.iframe.allow.microphone
 #   - http.headers.Permissions-Policy.camera
diff --git a/features/draft/spec/mediaqueries-5.yml b/features/draft/spec/mediaqueries-5.yml
index aa12c8ecd44..7d2844bd64d 100644
--- a/features/draft/spec/mediaqueries-5.yml
+++ b/features/draft/spec/mediaqueries-5.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-03-11
+draft_date: 2026-05-08
 name: Media Queries Level 5
 description: TODO
 spec: https://drafts.csswg.org/mediaqueries-5/
@@ -33,12 +33,9 @@ compat_features:
 #   - css.at-rules.media.media_features
 #   - css.at-rules.media.media_query_values
 #   - css.at-rules.media.monochrome
-#   - css.at-rules.media.nested-queries
 #   - css.at-rules.media.or_syntax
 #   - css.at-rules.media.orientation
 #   - css.at-rules.media.width
-#   - css.types.ratio
-#   - css.types.ratio.number_value
 # - Interaction media queries:
 #   - css.at-rules.media.any-hover
 #   - css.at-rules.media.any-pointer
diff --git a/features/draft/spec/motion-1.yml b/features/draft/spec/motion-1.yml
index cab83cc9219..ad4f35a2cd9 100644
--- a/features/draft/spec/motion-1.yml
+++ b/features/draft/spec/motion-1.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-11-03
+draft_date: 2026-05-08
 name: Motion Path Module Level 1
 description: TODO
 spec: https://drafts.csswg.org/motion-1/
@@ -21,7 +21,6 @@ compat_features:
 #   - css.properties.offset-path
 #   - css.properties.offset-path.basic_shape
 #   - css.properties.offset-path.none
-#   - css.properties.offset-path.path
 #   - css.properties.offset-path.ray
 #   - css.properties.offset-path.url
 #   - css.properties.offset-position
diff --git a/features/draft/spec/notifications.yml b/features/draft/spec/notifications.yml
index a53b9f93e59..bb02362f848 100644
--- a/features/draft/spec/notifications.yml
+++ b/features/draft/spec/notifications.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-09-17
+draft_date: 2026-05-08
 name: Notifications API
 description: TODO
 spec: https://notifications.spec.whatwg.org/
@@ -27,7 +27,6 @@ compat_features:
 #   - api.Notification.requestPermission_static
 #   - api.Notification.requestPermission_static.returns_promise
 #   - api.Notification.requireInteraction
-#   - api.Notification.secure_context_required
 #   - api.Notification.show_event
 #   - api.Notification.silent
 #   - api.Notification.tag
@@ -39,6 +38,7 @@ compat_features:
 #   - api.NotificationEvent.NotificationEvent
 #   - api.NotificationEvent.action
 #   - api.NotificationEvent.notification
+#   - api.Permissions.permission_notifications
 #   - api.ServiceWorkerGlobalScope.notificationclick_event
 #   - api.ServiceWorkerGlobalScope.notificationclose_event
 #   - api.ServiceWorkerRegistration.getNotifications
diff --git a/features/draft/spec/permissions-policy-1.yml b/features/draft/spec/permissions-policy-1.yml
index b0c38562af2..c0f3302c36f 100644
--- a/features/draft/spec/permissions-policy-1.yml
+++ b/features/draft/spec/permissions-policy-1.yml
@@ -1,12 +1,14 @@
-draft_date: 2026-04-28
+draft_date: 2026-05-08
 name: Permissions Policy
 description: TODO
 spec: https://w3c.github.io/webappsec-permissions-policy/
 compat_features:
-  - api.ReportingObserver.ReportingObserver.options_parameter.types_property.permissions-policy-violation
+  - html.elements.iframe.allow.wildcards
   - http.headers.Permissions-Policy-Report-Only
 
 # The following features in the spec are already part of web-features:
+# - Permissions policy violation reporting:
+#   - api.ReportingObserver.ReportingObserver.options_parameter.types_property.permissions-policy-violation
 # - Permissions policy:
 #   - http.headers.Permissions-Policy
 #   - http.headers.Permissions-Policy.wildcards
diff --git a/features/draft/spec/permissions-policy-1.yml.dist b/features/draft/spec/permissions-policy-1.yml.dist
index 93d2166cfb6..3a31c56891e 100644
--- a/features/draft/spec/permissions-policy-1.yml.dist
+++ b/features/draft/spec/permissions-policy-1.yml.dist
@@ -8,5 +8,17 @@ status:
     chrome_android: "120"
     edge: "120"
 compat_features:
-  - api.ReportingObserver.ReportingObserver.options_parameter.types_property.permissions-policy-violation
+  # baseline: false
+  # support:
+  #   chrome: "108"
+  #   chrome_android: "108"
+  #   edge: "108"
+  - html.elements.iframe.allow.wildcards
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support:
+  #   chrome: "120"
+  #   chrome_android: "120"
+  #   edge: "120"
   - http.headers.Permissions-Policy-Report-Only
diff --git a/features/draft/spec/permissions.yml b/features/draft/spec/permissions.yml
index 123d7003ec6..0eb9a1d943c 100644
--- a/features/draft/spec/permissions.yml
+++ b/features/draft/spec/permissions.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-02-16
+draft_date: 2026-05-08
 name: Permissions
 description: TODO
 spec: https://w3c.github.io/permissions/
@@ -21,28 +21,5 @@ compat_features:
 #   - api.Permissions
 #   - api.Permissions.query
 #   - api.WorkerNavigator.permissions
-# - Accelerometer:
-#   - api.Permissions.permission_accelerometer
-# - Ambient light sensor:
-#   - api.Permissions.permission_ambient-light-sensor
-# - Background sync:
-#   - api.Permissions.permission_background-sync
-# - Media capture:
-#   - api.Permissions.permission_camera
-#   - api.Permissions.permission_microphone
-# - Geolocation API:
-#   - api.Permissions.permission_geolocation
-# - Gyroscope:
-#   - api.Permissions.permission_gyroscope
-# - Local fonts:
-#   - api.Permissions.permission_local-fonts
-# - Magnetometer:
-#   - api.Permissions.permission_magnetometer
 # - Notifications:
-#   - api.Permissions.permission_notifications
-# - Payment handler:
-#   - api.Permissions.permission_payment-handler
-# - Storage manager:
-#   - api.Permissions.permission_persistent-storage
-# - Push messages:
-#   - api.Permissions.permission_push
+#   - api.Notification.secure_context_required
diff --git a/features/draft/spec/pointerlock-2.yml b/features/draft/spec/pointerlock-2.yml
index 8a0063cc0a5..f2717d5f0dc 100644
--- a/features/draft/spec/pointerlock-2.yml
+++ b/features/draft/spec/pointerlock-2.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-01-05
+draft_date: 2026-05-08
 name: Pointer Lock 2.0
 description: TODO
 spec: https://w3c.github.io/pointerlock/
@@ -15,8 +15,6 @@ compat_features:
 #   - api.Document.pointerlockchange_event
 #   - api.Document.pointerlockerror_event
 #   - api.Element.requestPointerLock
-# - Feature policy:
-#   - api.Document.featurePolicy
 # - Mouse events:
 #   - api.MouseEvent
 #   - api.MouseEvent.movementX
diff --git a/features/draft/spec/push-api.yml b/features/draft/spec/push-api.yml
index 777002185e8..eb35f74595f 100644
--- a/features/draft/spec/push-api.yml
+++ b/features/draft/spec/push-api.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-10-08
+draft_date: 2026-05-08
 name: Push API
 description: TODO
 spec: https://w3c.github.io/push-api/
@@ -8,6 +8,7 @@ compat_features:
 
 # The following features in the spec are already part of web-features:
 # - Push messages:
+#   - api.Permissions.permission_push
 #   - api.PushEvent
 #   - api.PushEvent.PushEvent
 #   - api.PushEvent.data
diff --git a/features/draft/spec/referrer-policy.yml b/features/draft/spec/referrer-policy.yml
new file mode 100644
index 00000000000..fdd04487749
--- /dev/null
+++ b/features/draft/spec/referrer-policy.yml
@@ -0,0 +1,59 @@
+draft_date: 2026-05-08
+name: Referrer Policy
+description: TODO
+spec: https://w3c.github.io/webappsec-referrer-policy/
+compat_features:
+  - http.headers.Referer.length_limit_4096B
+
+# The following features in the spec are already part of web-features:
+# - Referrer policy:
+#   - api.HTMLAnchorElement.referrerPolicy.no-referrer-when-downgrade
+#   - api.HTMLAnchorElement.referrerPolicy.origin-when-cross-origin
+#   - api.HTMLAnchorElement.referrerPolicy.unsafe-url
+#   - api.HTMLAreaElement.referrerPolicy.no-referrer-when-downgrade
+#   - api.HTMLAreaElement.referrerPolicy.origin-when-cross-origin
+#   - api.HTMLAreaElement.referrerPolicy.unsafe-url
+#   - api.HTMLIFrameElement.referrerPolicy.no-referrer-when-downgrade
+#   - api.HTMLIFrameElement.referrerPolicy.origin-when-cross-origin
+#   - api.HTMLIFrameElement.referrerPolicy.unsafe-url
+#   - api.HTMLImageElement.referrerPolicy.no-referrer-when-downgrade
+#   - api.HTMLImageElement.referrerPolicy.origin-when-cross-origin
+#   - api.HTMLImageElement.referrerPolicy.unsafe-url
+#   - api.HTMLLinkElement.referrerPolicy.no-referrer-when-downgrade
+#   - api.HTMLLinkElement.referrerPolicy.origin-when-cross-origin
+#   - api.HTMLLinkElement.referrerPolicy.unsafe-url
+#   - api.HTMLScriptElement.referrerPolicy.no-referrer-when-downgrade
+#   - api.HTMLScriptElement.referrerPolicy.origin-when-cross-origin
+#   - api.HTMLScriptElement.referrerPolicy.unsafe-url
+#   - html.elements.a.referrerpolicy.no-referrer-when-downgrade
+#   - html.elements.a.referrerpolicy.origin-when-cross-origin
+#   - html.elements.a.referrerpolicy.unsafe-url
+#   - html.elements.area.referrerpolicy.no-referrer-when-downgrade
+#   - html.elements.area.referrerpolicy.origin-when-cross-origin
+#   - html.elements.area.referrerpolicy.unsafe-url
+#   - html.elements.iframe.referrerpolicy.no-referrer-when-downgrade
+#   - html.elements.iframe.referrerpolicy.origin-when-cross-origin
+#   - html.elements.iframe.referrerpolicy.unsafe-url
+#   - html.elements.img.referrerpolicy.no-referrer-when-downgrade
+#   - html.elements.img.referrerpolicy.origin-when-cross-origin
+#   - html.elements.img.referrerpolicy.unsafe-url
+#   - html.elements.link.referrerpolicy.no-referrer-when-downgrade
+#   - html.elements.link.referrerpolicy.origin-when-cross-origin
+#   - html.elements.link.referrerpolicy.unsafe-url
+#   - html.elements.script.referrerpolicy.no-referrer-when-downgrade
+#   - html.elements.script.referrerpolicy.origin-when-cross-origin
+#   - html.elements.script.referrerpolicy.unsafe-url
+#   - http.headers.Referrer-Policy
+#   - http.headers.Referrer-Policy.default_strict-origin-when-cross-origin
+#   - http.headers.Referrer-Policy.no-referrer-when-downgrade
+#   - http.headers.Referrer-Policy.origin-when-cross-origin
+#   - http.headers.Referrer-Policy.same-origin
+#   - http.headers.Referrer-Policy.strict-origin
+#   - http.headers.Referrer-Policy.strict-origin-when-cross-origin
+#   - http.headers.Referrer-Policy.unsafe-url
+# - <meta>:
+#   - html.elements.meta.name
+# - SVG:
+#   - svg.elements.a.referrerpolicy.no-referrer-when-downgrade
+#   - svg.elements.a.referrerpolicy.origin-when-cross-origin
+#   - svg.elements.a.referrerpolicy.unsafe-url
diff --git a/features/draft/spec/referrer-policy.yml.dist b/features/draft/spec/referrer-policy.yml.dist
new file mode 100644
index 00000000000..fbaa6dbf388
--- /dev/null
+++ b/features/draft/spec/referrer-policy.yml.dist
@@ -0,0 +1,17 @@
+# Generated from: referrer-policy.yml
+# Do not edit this file by hand. Edit the source file instead!
+
+status:
+  baseline: high
+  baseline_low_date: 2020-09-16
+  baseline_high_date: 2023-03-16
+  support:
+    chrome: "77"
+    chrome_android: "77"
+    edge: "79"
+    firefox: "70"
+    firefox_android: "79"
+    safari: "14"
+    safari_ios: "14"
+compat_features:
+  - http.headers.Referer.length_limit_4096B
diff --git a/features/draft/spec/rfc8297.yml b/features/draft/spec/rfc8297.yml
index cf486009bf1..a6e86458d73 100644
--- a/features/draft/spec/rfc8297.yml
+++ b/features/draft/spec/rfc8297.yml
@@ -1,8 +1,6 @@
-draft_date: 2024-10-21
+draft_date: 2026-05-08
 name: An HTTP Status Code for Indicating Hints
 description: TODO
 spec: https://httpwg.org/specs/rfc8297.html
 compat_features:
   - http.status.103
-  - http.status.103.preconnect
-  - http.status.103.preload
diff --git a/features/draft/spec/rfc8297.yml.dist b/features/draft/spec/rfc8297.yml.dist
index db1bf8a6c29..821518c0c28 100644
--- a/features/draft/spec/rfc8297.yml.dist
+++ b/features/draft/spec/rfc8297.yml.dist
@@ -2,33 +2,15 @@
 # Do not edit this file by hand. Edit the source file instead!
 
 status:
-  baseline: false
+  baseline: low
+  baseline_low_date: 2023-11-21
   support:
     chrome: "103"
     chrome_android: "103"
     edge: "103"
-    firefox: "123"
-    firefox_android: "123"
+    firefox: "120"
+    firefox_android: "120"
+    safari: "17"
+    safari_ios: "17"
 compat_features:
-  # baseline: low
-  # baseline_low_date: 2023-11-21
-  # support:
-  #   chrome: "103"
-  #   chrome_android: "103"
-  #   edge: "103"
-  #   firefox: "120"
-  #   firefox_android: "120"
-  #   safari: "17"
-  #   safari_ios: "17"
   - http.status.103
-  - http.status.103.preconnect
-
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: false
-  # support:
-  #   chrome: "103"
-  #   chrome_android: "103"
-  #   edge: "103"
-  #   firefox: "123"
-  #   firefox_android: "123"
-  - http.status.103.preload
diff --git a/features/draft/spec/rfc8942.yml b/features/draft/spec/rfc8942.yml
index 5e75f946841..42c3040d1ff 100644
--- a/features/draft/spec/rfc8942.yml
+++ b/features/draft/spec/rfc8942.yml
@@ -1,16 +1,6 @@
-draft_date: 2026-01-06
+draft_date: 2026-05-08
 name: HTTP Client Hints
 description: TODO
 spec: https://httpwg.org/specs/rfc8942.html
 compat_features:
   - http.headers.Accept-CH
-
-# The following features in the spec are already part of web-features:
-# - User agent client hints:
-#   - http.headers.Accept-CH.Sec-CH-UA
-#   - http.headers.Accept-CH.Sec-CH-UA-Arch
-#   - http.headers.Accept-CH.Sec-CH-UA-Full-Version
-#   - http.headers.Accept-CH.Sec-CH-UA-Mobile
-#   - http.headers.Accept-CH.Sec-CH-UA-Model
-#   - http.headers.Accept-CH.Sec-CH-UA-Platform
-#   - http.headers.Accept-CH.Sec-CH-UA-Platform-Version
diff --git a/features/draft/spec/rfc9110.yml b/features/draft/spec/rfc9110.yml
index b4b39809955..21e82112d10 100644
--- a/features/draft/spec/rfc9110.yml
+++ b/features/draft/spec/rfc9110.yml
@@ -1,11 +1,8 @@
-draft_date: 2026-02-16
+draft_date: 2026-05-08
 name: HTTP Semantics
 description: TODO
 spec: https://httpwg.org/specs/rfc9110.html
 compat_features:
-  - http.headers.Content-Length.cors_response_safelist
-  - http.headers.Range.cors_safe
-  - http.headers.Referer.length_limit_4096B
   - http.headers.Retry-After
   - http.headers.Upgrade
   - http.status.308
@@ -50,13 +47,6 @@ compat_features:
 #   - http.methods.OPTIONS
 #   - http.methods.POST
 #   - http.methods.PUT
-# - Compression Dictionary Transport:
-#   - http.headers.Accept-Encoding.dcb
-#   - http.headers.Accept-Encoding.dcz
-#   - http.headers.Content-Encoding.dcb
-#   - http.headers.Content-Encoding.dcz
 # - HTTP authentication:
 #   - http.headers.Authorization
-#   - http.headers.Authorization.NTLM
 #   - http.headers.WWW-Authenticate
-#   - http.headers.WWW-Authenticate.NTLM
diff --git a/features/draft/spec/rfc9110.yml.dist b/features/draft/spec/rfc9110.yml.dist
index f7a75c2b8c9..d69e45bbc24 100644
--- a/features/draft/spec/rfc9110.yml.dist
+++ b/features/draft/spec/rfc9110.yml.dist
@@ -4,9 +4,9 @@
 status:
   baseline: false
   support:
-    chrome: "99"
-    chrome_android: "99"
-    edge: "99"
+    chrome: "36"
+    chrome_android: "36"
+    edge: ≤18
 compat_features:
   # baseline: high
   # baseline_low_date: 2015-07-29
@@ -34,45 +34,6 @@ compat_features:
   #   safari_ios: "7"
   - http.status.308
 
-  # baseline: high
-  # baseline_low_date: 2020-09-16
-  # baseline_high_date: 2023-03-16
-  # support:
-  #   chrome: "77"
-  #   chrome_android: "77"
-  #   edge: "79"
-  #   firefox: "70"
-  #   firefox_android: "79"
-  #   safari: "14"
-  #   safari_ios: "14"
-  - http.headers.Referer.length_limit_4096B
-
-  # baseline: high
-  # baseline_low_date: 2021-03-23
-  # baseline_high_date: 2023-09-23
-  # support:
-  #   chrome: "76"
-  #   chrome_android: "76"
-  #   edge: "79"
-  #   firefox: "87"
-  #   firefox_android: "87"
-  #   safari: "12.1"
-  #   safari_ios: "12.2"
-  - http.headers.Content-Length.cors_response_safelist
-
-  # baseline: high
-  # baseline_low_date: 2023-08-29
-  # baseline_high_date: 2026-02-28
-  # support:
-  #   chrome: "99"
-  #   chrome_android: "99"
-  #   edge: "99"
-  #   firefox: "117"
-  #   firefox_android: "117"
-  #   safari: "16"
-  #   safari_ios: "16"
-  - http.headers.Range.cors_safe
-
   # baseline: false
   # support:
   #   chrome: "24"
diff --git a/features/draft/spec/rfc9111.yml b/features/draft/spec/rfc9111.yml
deleted file mode 100644
index ebc3c1d4932..00000000000
--- a/features/draft/spec/rfc9111.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-draft_date: 2024-11-13
-name: HTTP Caching
-description: TODO
-spec: https://httpwg.org/specs/rfc9111.html
-compat_features:
-  - http.headers.Cache-Control.immutable
-
-# The following features in the spec are already part of web-features:
-# - HTTP/1.1:
-#   - http.headers.Age
-#   - http.headers.Cache-Control
-#   - http.headers.Expires
diff --git a/features/draft/spec/rfc9111.yml.dist b/features/draft/spec/rfc9111.yml.dist
deleted file mode 100644
index fdeb9c60a2c..00000000000
--- a/features/draft/spec/rfc9111.yml.dist
+++ /dev/null
@@ -1,11 +0,0 @@
-# Generated from: rfc9111.yml
-# Do not edit this file by hand. Edit the source file instead!
-
-status:
-  baseline: false
-  support:
-    firefox: "49"
-    safari: "11"
-    safari_ios: "11"
-compat_features:
-  - http.headers.Cache-Control.immutable
diff --git a/features/draft/spec/sanitizer-api.yml b/features/draft/spec/sanitizer-api.yml
index 1743ed8ec6e..1688b6f66d1 100644
--- a/features/draft/spec/sanitizer-api.yml
+++ b/features/draft/spec/sanitizer-api.yml
@@ -1,10 +1,12 @@
-draft_date: 2025-07-30
+draft_date: 2026-05-08
 name: HTML Sanitizer API
 description: TODO
 spec: https://wicg.github.io/sanitizer-api/
 compat_features:
   - api.Document.parseHTMLUnsafe_static.options_sanitizer_parameter
   - api.Element.setHTMLUnsafe.options_sanitizer_parameter
+  - api.Sanitizer.allowProcessingInstruction
+  - api.Sanitizer.removeProcessingInstruction
   - api.ShadowRoot.setHTMLUnsafe.options_sanitizer_parameter
 
 # The following features in the spec are already part of web-features:
diff --git a/features/draft/spec/sanitizer-api.yml.dist b/features/draft/spec/sanitizer-api.yml.dist
index 4e990ed1701..d230f96e870 100644
--- a/features/draft/spec/sanitizer-api.yml.dist
+++ b/features/draft/spec/sanitizer-api.yml.dist
@@ -7,4 +7,6 @@ status:
 compat_features:
   - api.Document.parseHTMLUnsafe_static.options_sanitizer_parameter
   - api.Element.setHTMLUnsafe.options_sanitizer_parameter
+  - api.Sanitizer.allowProcessingInstruction
+  - api.Sanitizer.removeProcessingInstruction
   - api.ShadowRoot.setHTMLUnsafe.options_sanitizer_parameter
diff --git a/features/draft/spec/selection-api.yml b/features/draft/spec/selection-api.yml
index b4efda8c599..1995677e760 100644
--- a/features/draft/spec/selection-api.yml
+++ b/features/draft/spec/selection-api.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-01-05
+draft_date: 2026-05-08
 name: Selection API
 description: TODO
 spec: https://w3c.github.io/selection-api/
@@ -14,8 +14,6 @@ compat_features:
 # The following features in the spec are already part of web-features:
 # - DOM:
 #   - api.Document
-# - Feature policy:
-#   - api.Document.featurePolicy
 # - Selection:
 #   - api.Document.getSelection
 #   - api.Document.selectionchange_event
diff --git a/features/draft/spec/service-workers.yml b/features/draft/spec/service-workers.yml
index e0f3502996e..939e891005b 100644
--- a/features/draft/spec/service-workers.yml
+++ b/features/draft/spec/service-workers.yml
@@ -1,5 +1,5 @@
-draft_date: 2025-09-30
-name: Service Workers
+draft_date: 2026-05-08
+name: Service Workers Nightly
 description: TODO
 spec: https://w3c.github.io/ServiceWorker/
 compat_features:
@@ -114,6 +114,7 @@ compat_features:
 #   - http.headers.Service-Worker-Navigation-Preload
 # - JavaScript modules in service workers:
 #   - api.ServiceWorker.ecmascript_modules
+#   - javascript.statements.import.service_worker_support
 # - messageerror:
 #   - api.ServiceWorkerContainer.messageerror_event
 #   - api.ServiceWorkerGlobalScope.messageerror_event
diff --git a/features/draft/spec/sri-2.yml b/features/draft/spec/sri-2.yml
deleted file mode 100644
index 0f419b8d89a..00000000000
--- a/features/draft/spec/sri-2.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-draft_date: 2026-04-23
-name: Subresource Integrity
-description: TODO
-spec: https://w3c.github.io/webappsec-subresource-integrity/
-compat_features:
-  - http.headers.Integrity-Policy
-  - http.headers.Integrity-Policy-Report-Only
-  - http.headers.Integrity-Policy-Report-Only.blocked-destinations_script
-  - http.headers.Integrity-Policy-Report-Only.blocked-destinations_style
-  - http.headers.Integrity-Policy.blocked-destinations_script
-  - http.headers.Integrity-Policy.blocked-destinations_style
-
-# The following features in the spec are already part of web-features:
-# - Reporting API:
-#   - api.ReportingObserver.ReportingObserver.options_parameter.types_property.integrity-violation
-# - Subresource integrity:
-#   - html.elements.link.integrity
-#   - html.elements.script.integrity
diff --git a/features/draft/spec/sri-2.yml.dist b/features/draft/spec/sri-2.yml.dist
deleted file mode 100644
index 133906f52b2..00000000000
--- a/features/draft/spec/sri-2.yml.dist
+++ /dev/null
@@ -1,24 +0,0 @@
-# Generated from: sri-2.yml
-# Do not edit this file by hand. Edit the source file instead!
-
-status:
-  baseline: false
-  support: {}
-compat_features:
-  # baseline: false
-  # support:
-  #   chrome: "138"
-  #   chrome_android: "138"
-  #   edge: "138"
-  #   safari: "26"
-  #   safari_ios: "26"
-  - http.headers.Integrity-Policy
-  - http.headers.Integrity-Policy-Report-Only
-  - http.headers.Integrity-Policy-Report-Only.blocked-destinations_script
-  - http.headers.Integrity-Policy.blocked-destinations_script
-
-  # ⬇️ Same status as overall feature ⬇️
-  # baseline: false
-  # support: {}
-  - http.headers.Integrity-Policy-Report-Only.blocked-destinations_style
-  - http.headers.Integrity-Policy.blocked-destinations_style
diff --git a/features/draft/spec/svg2.yml b/features/draft/spec/svg2.yml
index 2fff7260058..244b0043e1e 100644
--- a/features/draft/spec/svg2.yml
+++ b/features/draft/spec/svg2.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-04-20
+draft_date: 2026-05-08
 name: Scalable Vector Graphics (SVG) 2
 description: TODO
 spec: https://w3c.github.io/svgwg/svg2-draft/
@@ -78,9 +78,7 @@ compat_features:
 #   - api.SVGGeometryElement.getPointAtLength
 #   - api.SVGGeometryElement.getTotalLength
 #   - api.SVGGeometryElement.isPointInFill
-#   - api.SVGGeometryElement.isPointInFill.point_parameter_DOMPoint
 #   - api.SVGGeometryElement.isPointInStroke
-#   - api.SVGGeometryElement.isPointInStroke.point_parameter_DOMPoint
 #   - api.SVGGeometryElement.pathLength
 #   - api.SVGGradientElement
 #   - api.SVGGradientElement.gradientTransform
@@ -223,9 +221,7 @@ compat_features:
 #   - api.SVGSVGElement.x
 #   - api.SVGSVGElement.y
 #   - api.SVGScriptElement
-#   - api.SVGScriptElement.async
 #   - api.SVGScriptElement.crossOrigin
-#   - api.SVGScriptElement.defer
 #   - api.SVGScriptElement.href
 #   - api.SVGScriptElement.type
 #   - api.SVGStopElement
@@ -306,7 +302,6 @@ compat_features:
 #   - api.SVGViewElement.viewBox
 #   - css.properties.color-interpolation
 #   - css.properties.color-interpolation.auto
-#   - css.properties.color-interpolation.linearGradient
 #   - css.properties.color-interpolation.sRGB
 #   - css.properties.cx
 #   - css.properties.cy
@@ -346,9 +341,6 @@ compat_features:
 #   - svg.elements.a.href
 #   - svg.elements.a.hreflang
 #   - svg.elements.a.referrerpolicy
-#   - svg.elements.a.referrerpolicy.no-referrer-when-downgrade
-#   - svg.elements.a.referrerpolicy.origin-when-cross-origin
-#   - svg.elements.a.referrerpolicy.unsafe-url
 #   - svg.elements.a.rel
 #   - svg.elements.a.systemLanguage
 #   - svg.elements.a.target
@@ -454,8 +446,6 @@ compat_features:
 #   - svg.elements.rect.x
 #   - svg.elements.rect.y
 #   - svg.elements.script
-#   - svg.elements.script.async
-#   - svg.elements.script.defer
 #   - svg.elements.script.href
 #   - svg.elements.script.type
 #   - svg.elements.set.systemLanguage
@@ -466,13 +456,7 @@ compat_features:
 #   - svg.elements.style.title
 #   - svg.elements.style.type
 #   - svg.elements.svg
-#   - svg.elements.svg.height
-#   - svg.elements.svg.preserveAspectRatio
 #   - svg.elements.svg.systemLanguage
-#   - svg.elements.svg.viewBox
-#   - svg.elements.svg.width
-#   - svg.elements.svg.x
-#   - svg.elements.svg.y
 #   - svg.elements.switch
 #   - svg.elements.switch.systemLanguage
 #   - svg.elements.symbol
@@ -497,7 +481,6 @@ compat_features:
 #   - svg.elements.textPath.systemLanguage
 #   - svg.elements.textPath.textLength
 #   - svg.elements.title
-#   - svg.elements.title.tooltip_display
 #   - svg.elements.tspan
 #   - svg.elements.tspan.dx
 #   - svg.elements.tspan.dy
@@ -540,6 +523,8 @@ compat_features:
 #   - svg.global_attributes.marker-start
 #   - svg.global_attributes.overflow
 #   - svg.global_attributes.pointer-events
+#   - svg.global_attributes.requiredExtensions
+#   - svg.global_attributes.requiredExtensions.mathml
 #   - svg.global_attributes.shape-rendering
 #   - svg.global_attributes.stop-color
 #   - svg.global_attributes.stop-opacity
@@ -618,63 +603,18 @@ compat_features:
 #   - api.SVGFilterElement.href
 # - alignment-baseline:
 #   - css.properties.alignment-baseline
-#   - css.properties.alignment-baseline.alphabetic
-#   - css.properties.alignment-baseline.baseline
-#   - css.properties.alignment-baseline.central
-#   - css.properties.alignment-baseline.ideographic
-#   - css.properties.alignment-baseline.mathematical
-#   - css.properties.alignment-baseline.middle
-#   - css.properties.alignment-baseline.text-after-edge
-#   - css.properties.alignment-baseline.text-before-edge
 # - baseline-shift:
 #   - css.properties.baseline-shift
 # - Color:
 #   - css.properties.color
 # - Layout direction override:
 #   - css.properties.direction
-# - Vertical form controls:
-#   - css.properties.direction.vertical_slider_direction
-#   - css.properties.writing-mode.vertical_oriented_form_controls
 # - Display:
 #   - css.properties.display
-#   - css.properties.display.inline-block
-# - Flexbox:
-#   - css.properties.display.flex
-#   - css.properties.display.inline-flex
-# - display: flow-root:
-#   - css.properties.display.flow-root
-# - Grid:
-#   - css.properties.display.grid
-#   - css.properties.display.inline-grid
-# - display: table:
-#   - css.properties.display.inline-table
-#   - css.properties.display.table
-#   - css.properties.display.table-caption
-#   - css.properties.display.table-cell
-#   - css.properties.display.table-column
-#   - css.properties.display.table-column-group
-#   - css.properties.display.table-footer-group
-#   - css.properties.display.table-header-group
-#   - css.properties.display.table-row
-#   - css.properties.display.table-row-group
-# - MathML:
-#   - css.properties.display.math
-# - Two-value display property:
-#   - css.properties.display.multi-keyword_values
-# - display: ruby:
-#   - css.properties.display.ruby
-#   - css.properties.display.ruby-base
-#   - css.properties.display.ruby-base-container
-#   - css.properties.display.ruby-text
-#   - css.properties.display.ruby-text-container
 # - dominant-baseline:
 #   - css.properties.dominant-baseline
 # - font-variant:
 #   - css.properties.font-variant
-#   - css.properties.font-variant.css_fonts_shorthand
-#   - css.properties.font-variant.greek_accented_characters
-#   - css.properties.font-variant.turkic_is
-#   - css.properties.font-variant.uppercase_eszett
 #   - svg.global_attributes.font-variant
 # - image-rendering:
 #   - css.properties.image-rendering
@@ -683,11 +623,9 @@ compat_features:
 #   - svg.global_attributes.letter-spacing
 # - opacity:
 #   - css.properties.opacity
-#   - css.properties.opacity.percentages
 #   - svg.global_attributes.opacity
 # - overflow:
 #   - css.properties.overflow
-#   - css.properties.overflow.multiple_keywords
 # - paint-order:
 #   - css.properties.paint-order
 #   - svg.global_attributes.paint-order
@@ -700,14 +638,9 @@ compat_features:
 #   - css.properties.text-decoration.includes_thickness
 # - Text overflow:
 #   - css.properties.text-overflow
-#   - css.properties.text-overflow.two_value_syntax
 #   - svg.global_attributes.text-overflow
-# - Custom ellipses:
-#   - css.properties.text-overflow.string
 # - 2D transforms:
 #   - css.properties.transform
-# - 3D transforms:
-#   - css.properties.transform.3d
 # - visibility:
 #   - css.properties.visibility
 # - white-space:
@@ -721,11 +654,6 @@ compat_features:
 #   - svg.global_attributes.word-spacing
 # - writing-mode:
 #   - css.properties.writing-mode
-#   - css.properties.writing-mode.horizontal-tb
-#   - css.properties.writing-mode.sideways-lr
-#   - css.properties.writing-mode.sideways-rl
-#   - css.properties.writing-mode.vertical-lr
-#   - css.properties.writing-mode.vertical-rl
 #   - svg.global_attributes.writing-mode
 # - path():
 #   - css.types.basic-shape.path.d
diff --git a/features/draft/spec/trusted-types.yml b/features/draft/spec/trusted-types.yml
index 9379f083930..16f9f9aaad1 100644
--- a/features/draft/spec/trusted-types.yml
+++ b/features/draft/spec/trusted-types.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-01-29
+draft_date: 2026-05-08
 name: Trusted Types
 description: TODO
 spec: https://w3c.github.io/trusted-types/dist/spec/
@@ -7,6 +7,8 @@ compat_features:
   - api.Document.parseHTMLUnsafe_static.enforces_trusted_types
   - api.Element.insertAdjacentHTML.enforces_trusted_types
   - api.Element.outerHTML.enforces_trusted_types
+  - api.Element.setAttribute.enforces_trusted_types
+  - api.Element.setAttributeNS.enforces_trusted_types
   - api.Element.setHTMLUnsafe.enforces_trusted_types
   - api.HTMLIFrameElement.srcdoc.enforces_trusted_types
   - api.HTMLScriptElement.innerText
diff --git a/features/draft/spec/trusted-types.yml.dist b/features/draft/spec/trusted-types.yml.dist
index 4d399b74a09..37e31d94f7a 100644
--- a/features/draft/spec/trusted-types.yml.dist
+++ b/features/draft/spec/trusted-types.yml.dist
@@ -63,6 +63,16 @@ compat_features:
   - api.Element.setHTMLUnsafe.enforces_trusted_types
   - api.ShadowRoot.setHTMLUnsafe.enforces_trusted_types
 
+  # baseline: false
+  # support:
+  #   chrome: "83"
+  #   chrome_android: "83"
+  #   edge: "83"
+  #   safari: "26"
+  #   safari_ios: "26"
+  - api.Element.setAttribute.enforces_trusted_types
+  - api.Element.setAttributeNS.enforces_trusted_types
+
   # ⬇️ Same status as overall feature ⬇️
   # baseline: false
   # support:
diff --git a/features/draft/spec/ua-client-hints.yml b/features/draft/spec/ua-client-hints.yml
index 5911a85974d..af19f70df25 100644
--- a/features/draft/spec/ua-client-hints.yml
+++ b/features/draft/spec/ua-client-hints.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-02-16
+draft_date: 2026-05-08
 name: User-Agent Client Hints
 description: TODO
 spec: https://wicg.github.io/ua-client-hints/
@@ -20,6 +20,13 @@ compat_features:
 #   - api.NavigatorUAData.platform
 #   - api.NavigatorUAData.toJSON
 #   - api.WorkerNavigator.userAgentData
+#   - http.headers.Accept-CH.Sec-CH-UA
+#   - http.headers.Accept-CH.Sec-CH-UA-Arch
+#   - http.headers.Accept-CH.Sec-CH-UA-Full-Version
+#   - http.headers.Accept-CH.Sec-CH-UA-Mobile
+#   - http.headers.Accept-CH.Sec-CH-UA-Model
+#   - http.headers.Accept-CH.Sec-CH-UA-Platform
+#   - http.headers.Accept-CH.Sec-CH-UA-Platform-Version
 #   - http.headers.Sec-CH-UA
 #   - http.headers.Sec-CH-UA-Arch
 #   - http.headers.Sec-CH-UA-Bitness
diff --git a/features/draft/spec/uievents.yml b/features/draft/spec/uievents.yml
index 7ebdcf59c67..fc4ff2d273b 100644
--- a/features/draft/spec/uievents.yml
+++ b/features/draft/spec/uievents.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-02-23
+draft_date: 2026-05-08
 name: UI Events
 description: TODO
 spec: https://w3c.github.io/uievents/
@@ -39,7 +39,6 @@ compat_features:
 #   - api.InputEvent
 #   - api.InputEvent.InputEvent
 #   - api.InputEvent.inputType
-#   - api.InputEvent.inputType.insertFromPasteAsQuotation
 #   - api.InputEvent.isComposing
 # - Focus events:
 #   - api.Element.blur_event
@@ -58,16 +57,6 @@ compat_features:
 #   - api.KeyboardEvent.code
 #   - api.KeyboardEvent.ctrlKey
 #   - api.KeyboardEvent.getModifierState
-#   - api.KeyboardEvent.getModifierState.key_parameter_alt
-#   - api.KeyboardEvent.getModifierState.key_parameter_altgraph
-#   - api.KeyboardEvent.getModifierState.key_parameter_capslock
-#   - api.KeyboardEvent.getModifierState.key_parameter_control
-#   - api.KeyboardEvent.getModifierState.key_parameter_fn
-#   - api.KeyboardEvent.getModifierState.key_parameter_meta
-#   - api.KeyboardEvent.getModifierState.key_parameter_numlock
-#   - api.KeyboardEvent.getModifierState.key_parameter_scrolllock
-#   - api.KeyboardEvent.getModifierState.key_parameter_shift
-#   - api.KeyboardEvent.getModifierState.key_parameter_symbol
 #   - api.KeyboardEvent.isComposing
 #   - api.KeyboardEvent.key
 #   - api.KeyboardEvent.key.dead_key
diff --git a/features/draft/spec/url.yml b/features/draft/spec/url.yml
index 7bb55c1e707..e6e4b47a79b 100644
--- a/features/draft/spec/url.yml
+++ b/features/draft/spec/url.yml
@@ -1,8 +1,9 @@
-draft_date: 2025-10-13
+draft_date: 2026-05-08
 name: URL
 description: TODO
 spec: https://url.spec.whatwg.org/
 compat_features:
+  - api.HTMLBaseElement.href.forbid_special_characters
   - api.URL.pathname.encodes_trailing_space_in_opaque_path
 
 # The following features in the spec are already part of web-features:
diff --git a/features/draft/spec/url.yml.dist b/features/draft/spec/url.yml.dist
index d7188962acc..913cadbb4da 100644
--- a/features/draft/spec/url.yml.dist
+++ b/features/draft/spec/url.yml.dist
@@ -5,4 +5,19 @@ status:
   baseline: false
   support: {}
 compat_features:
+  # baseline: low
+  # baseline_low_date: 2024-07-09
+  # support:
+  #   chrome: "61"
+  #   chrome_android: "61"
+  #   edge: "79"
+  #   firefox: "128"
+  #   firefox_android: "128"
+  #   safari: "16"
+  #   safari_ios: "16"
+  - api.HTMLBaseElement.href.forbid_special_characters
+
+  # ⬇️ Same status as overall feature ⬇️
+  # baseline: false
+  # support: {}
   - api.URL.pathname.encodes_trailing_space_in_opaque_path
diff --git a/features/draft/spec/webauthn-3.yml b/features/draft/spec/webauthn-3.yml
index 65c05fc5a19..36060b53bfe 100644
--- a/features/draft/spec/webauthn-3.yml
+++ b/features/draft/spec/webauthn-3.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-09-08
+draft_date: 2026-05-08
 name: "Web Authentication: An API for accessing Public Key Credentials - Level 3"
 description: TODO
 spec: https://w3c.github.io/webauthn/
@@ -28,9 +28,7 @@ compat_features:
 #   - api.CredentialsContainer.create.publicKey_option.extensions
 #   - api.CredentialsContainer.create.publicKey_option.extensions.appidExclude
 #   - api.CredentialsContainer.create.publicKey_option.extensions.credProps
-#   - api.CredentialsContainer.create.publicKey_option.extensions.credProtect
 #   - api.CredentialsContainer.create.publicKey_option.extensions.largeBlob
-#   - api.CredentialsContainer.create.publicKey_option.extensions.minPinLength
 #   - api.CredentialsContainer.create.publicKey_option.requireResidentKey
 #   - api.CredentialsContainer.create.publicKey_option.residentKey
 #   - api.CredentialsContainer.get.publicKey_option
diff --git a/features/draft/spec/webgpu.yml b/features/draft/spec/webgpu.yml
index aba8acd3039..e9cd097ed34 100644
--- a/features/draft/spec/webgpu.yml
+++ b/features/draft/spec/webgpu.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-05-04
+draft_date: 2026-05-08
 name: WebGPU
 description: TODO
 spec: https://gpuweb.github.io/gpuweb/
@@ -11,6 +11,8 @@ compat_features:
   - api.GPUDevice.createBindGroup.descriptor_entries_resource_parameter_accepts_GPUTextureView
   - api.GPUDevice.createBindGroup.descriptor_entries_resource_parameter_accepts_GPUTexture_resource
   - api.GPUDevice.createPipelineLayout.descriptor_bindGroupLayouts_parameter_accepts_null_values
+  - api.GPUDevice.createTexture.descriptor_usage_parameter
+  - api.GPUDevice.createTexture.descriptor_usage_parameter.accept_transient_attachment
   - api.GPUSupportedFeatures.feature_core-features-and-limits
   - api.GPUSupportedFeatures.feature_primitive-index
   - api.GPUSupportedFeatures.feature_subgroups.subgroup_id_num_subgroups
@@ -24,14 +26,15 @@ compat_features:
   - api.GPUSupportedLimits.maxStorageTexturesInFragmentStage
   - api.GPUSupportedLimits.maxStorageTexturesInVertexStage
   - api.GPUTexture.createView.descriptor_swizzle_parameter
+  - api.GPUTexture.createView.descriptor_usage_parameter.transient_attachment
   - api.GPUTexture.textureBindingViewDimension
+  - api.GPUTexture.usage.transient_attachment
 
 # The following features in the spec are already part of web-features:
 # - WebGPU:
 #   - api.GPU
 #   - api.GPU.getPreferredCanvasFormat
 #   - api.GPU.requestAdapter
-#   - api.GPU.requestAdapter.discrete_adapter_default_ac
 #   - api.GPU.wgslLanguageFeatures
 #   - api.GPUAdapter
 #   - api.GPUAdapter.features
@@ -39,7 +42,6 @@ compat_features:
 #   - api.GPUAdapter.limits
 #   - api.GPUAdapter.requestDevice
 #   - api.GPUAdapter.requestDevice.handles_duplicate_calls
-#   - api.GPUAdapter.requestDevice.undefined_limits
 #   - api.GPUAdapterInfo
 #   - api.GPUAdapterInfo.architecture
 #   - api.GPUAdapterInfo.description
@@ -146,7 +148,6 @@ compat_features:
 #   - api.GPUDevice.destroy
 #   - api.GPUDevice.features
 #   - api.GPUDevice.importExternalTexture
-#   - api.GPUDevice.importExternalTexture.color_space_display-p3
 #   - api.GPUDevice.importExternalTexture.videoframe_source
 #   - api.GPUDevice.label
 #   - api.GPUDevice.limits
diff --git a/features/draft/spec/webgpu.yml.dist b/features/draft/spec/webgpu.yml.dist
index 1052ed80f88..9c9bcbc784c 100644
--- a/features/draft/spec/webgpu.yml.dist
+++ b/features/draft/spec/webgpu.yml.dist
@@ -5,6 +5,13 @@ status:
   baseline: false
   support: {}
 compat_features:
+  # baseline: false
+  # support:
+  #   chrome_android: "121"
+  #   safari: "26"
+  #   safari_ios: "26"
+  - api.GPUDevice.createTexture.descriptor_usage_parameter
+
   # baseline: false
   # support:
   #   chrome_android: "136"
@@ -51,8 +58,11 @@ compat_features:
   - api.GPUDevice.createBindGroup.descriptor_entries_resource_parameter_accepts_GPUTextureView
   - api.GPUDevice.createBindGroup.descriptor_entries_resource_parameter_accepts_GPUTexture_resource
   - api.GPUDevice.createPipelineLayout.descriptor_bindGroupLayouts_parameter_accepts_null_values
+  - api.GPUDevice.createTexture.descriptor_usage_parameter.accept_transient_attachment
   - api.GPUSupportedFeatures.feature_primitive-index
   - api.GPUSupportedFeatures.feature_subgroups.subgroup_id_num_subgroups
   - api.GPUSupportedFeatures.feature_texture-component-swizzle
   - api.GPUSupportedFeatures.feature_texture-formats-tier2
   - api.GPUTexture.createView.descriptor_swizzle_parameter
+  - api.GPUTexture.createView.descriptor_usage_parameter.transient_attachment
+  - api.GPUTexture.usage.transient_attachment
diff --git a/features/draft/spec/webidl.yml b/features/draft/spec/webidl.yml
index 53a53e84c44..207eb4a1b7b 100644
--- a/features/draft/spec/webidl.yml
+++ b/features/draft/spec/webidl.yml
@@ -1,4 +1,4 @@
-draft_date: 2025-08-20
+draft_date: 2026-05-08
 name: Web IDL
 description: TODO
 spec: https://webidl.spec.whatwg.org/
@@ -14,3 +14,41 @@ compat_features:
 #   - api.DOMException.DOMException
 #   - api.DOMException.message
 #   - api.DOMException.name
+# - Payment request:
+#   - api.PaymentResponse.toJSON
+# - WebRTC statistics:
+#   - api.RTCStatsReport.@@iterator
+#   - api.RTCStatsReport.values
+# - SharedArrayBuffer in WebGL:
+#   - api.WebGL2RenderingContext.bufferData.srcData_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.bufferSubData.srcData_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.clearBufferfv.values_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.clearBufferiv.values_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.clearBufferuiv.values_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.compressedTexImage2D.pixels_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.compressedTexImage3D.pixels_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.compressedTexSubImage2D.srcData_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.getBufferSubData.dstData_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.readPixels.pixels_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.texImage3D.srcData_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.texSubImage3D.srcData_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.uniformMatrix2fv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.uniformMatrix2x3fv.data_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.uniformMatrix2x4fv.data_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.uniformMatrix3fv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.uniformMatrix3x2fv.data_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.uniformMatrix3x4fv.data_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.uniformMatrix4fv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.uniformMatrix4x2fv.data_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.uniformMatrix4x3fv.data_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.vertexAttrib1fv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.vertexAttrib2fv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.vertexAttrib3fv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.vertexAttrib4fv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.vertexAttribI4iv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGL2RenderingContext.vertexAttribI4uiv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGLRenderingContext.compressedTexImage2D.pixels_param_accepts_SharedArrayBuffer
+#   - api.WebGLRenderingContext.vertexAttrib1fv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGLRenderingContext.vertexAttrib2fv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGLRenderingContext.vertexAttrib3fv.value_param_accepts_SharedArrayBuffer
+#   - api.WebGLRenderingContext.vertexAttrib4fv.value_param_accepts_SharedArrayBuffer
diff --git a/features/draft/spec/webrtc-identity.yml b/features/draft/spec/webrtc-identity.yml
index 6b47568e50e..f327b260301 100644
--- a/features/draft/spec/webrtc-identity.yml
+++ b/features/draft/spec/webrtc-identity.yml
@@ -1,4 +1,4 @@
-draft_date: 2024-09-09
+draft_date: 2026-05-08
 name: Identity for WebRTC 1.0
 description: TODO
 spec: https://w3c.github.io/webrtc-identity/
@@ -11,3 +11,7 @@ compat_features:
   - api.RTCPeerConnection.idpLoginUrl
   - api.RTCPeerConnection.peerIdentity
   - api.RTCPeerConnection.setIdentityProvider
+
+# The following features in the spec are already part of web-features:
+# - WebRTC:
+#   - api.RTCPeerConnection.RTCPeerConnection.configuration_peerIdentity_parameter
diff --git a/features/draft/spec/webrtc.yml b/features/draft/spec/webrtc.yml
index fb93515673a..4a51bb72271 100644
--- a/features/draft/spec/webrtc.yml
+++ b/features/draft/spec/webrtc.yml
@@ -1,4 +1,4 @@
-draft_date: 2026-02-16
+draft_date: 2026-05-08
 name: "WebRTC: Real-Time Communication in Browsers"
 description: TODO
 spec: https://w3c.github.io/webrtc-pc/
@@ -20,8 +20,6 @@ compat_features:
 #   - api.RTCDTMFToneChangeEvent.tone
 #   - api.RTCDataChannel
 #   - api.RTCDataChannel.binaryType
-#   - api.RTCDataChannel.binaryType.arraybuffer_value
-#   - api.RTCDataChannel.binaryType.blob_value
 #   - api.RTCDataChannel.bufferedAmount
 #   - api.RTCDataChannel.bufferedAmountLowThreshold
 #   - api.RTCDataChannel.bufferedamountlow_event
@@ -39,7 +37,6 @@ compat_features:
 #   - api.RTCDataChannel.ordered
 #   - api.RTCDataChannel.protocol
 #   - api.RTCDataChannel.readyState
-#   - api.RTCDataChannel.sctp_sdp_21
 #   - api.RTCDataChannel.send
 #   - api.RTCDataChannelEvent
 #   - api.RTCDataChannelEvent.RTCDataChannelEvent
@@ -101,7 +98,6 @@ compat_features:
 #   - api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter.urls_parameter
 #   - api.RTCPeerConnection.RTCPeerConnection.configuration_iceServers_parameter.username_parameter
 #   - api.RTCPeerConnection.RTCPeerConnection.configuration_iceTransportPolicy_parameter
-#   - api.RTCPeerConnection.RTCPeerConnection.configuration_peerIdentity_parameter
 #   - api.RTCPeerConnection.RTCPeerConnection.configuration_rtcpMuxPolicy_parameter
 #   - api.RTCPeerConnection.addIceCandidate
 #   - api.RTCPeerConnection.addIceCandidate.returns_promise
@@ -164,7 +160,6 @@ compat_features:
 #   - api.RTCPeerConnectionIceEvent.RTCPeerConnectionIceEvent
 #   - api.RTCPeerConnectionIceEvent.candidate
 #   - api.RTCRtpReceiver
-#   - api.RTCRtpReceiver.createEncodedStreams
 #   - api.RTCRtpReceiver.getCapabilities_static
 #   - api.RTCRtpReceiver.getContributingSources
 #   - api.RTCRtpReceiver.getContributingSources.audioLevel
@@ -184,7 +179,6 @@ compat_features:
 #   - api.RTCRtpReceiver.track
 #   - api.RTCRtpReceiver.transport
 #   - api.RTCRtpSender
-#   - api.RTCRtpSender.createEncodedStreams
 #   - api.RTCRtpSender.dtmf
 #   - api.RTCRtpSender.getCapabilities_static
 #   - api.RTCRtpSender.getParameters
diff --git a/features/draft/spec/writing-assistance-apis.yml b/features/draft/spec/writing-assistance-apis.yml
index bbded27deb0..6b1fa48cd6e 100644
--- a/features/draft/spec/writing-assistance-apis.yml
+++ b/features/draft/spec/writing-assistance-apis.yml
@@ -1,10 +1,11 @@
-draft_date: 2026-02-17
+draft_date: 2026-05-08
 name: Writing Assistance APIs
 description: TODO
 spec: https://webmachinelearning.github.io/writing-assistance-apis/
 compat_features:
   - api.CreateMonitor
   - api.CreateMonitor.downloadprogress_event
+  - api.LanguageModel.destroy
 
 # The following features in the spec are already part of web-features:
 # - Language detector:
diff --git a/features/draft/spec/writing-assistance-apis.yml.dist b/features/draft/spec/writing-assistance-apis.yml.dist
index 5cfc8cc0b6a..5735d983318 100644
--- a/features/draft/spec/writing-assistance-apis.yml.dist
+++ b/features/draft/spec/writing-assistance-apis.yml.dist
@@ -4,7 +4,16 @@
 status:
   baseline: false
   support:
-    chrome: "138"
+    chrome: "148"
 compat_features:
+  # baseline: false
+  # support:
+  #   chrome: "148"
+  #   edge: "148"
+  - api.LanguageModel.destroy
+
+  # baseline: false
+  # support:
+  #   chrome: "138"
   - api.CreateMonitor
   - api.CreateMonitor.downloadprogress_event