Updates release notes

Author: Adam-it

docs/docs/about/release-notes.mdx

@@ -4,6 +4,18 @@ sidebar_position: 4
 
 # Release notes
 
+## v11.8.0
+
+### New commands
+
+**Outlook:**
+
+- [outlook calendargroup remove](../cmd/outlook/calendargroup/calendargroup-remove.mdx) - Removes a calendar group [#7112](https://github.com/pnp/cli-microsoft365/issues/7112)
+
+### Changes
+
+- updated 'spfx project github workflow add' sppkg path resolution [#7233](https://github.com/pnp/cli-microsoft365/issues/7233)
+
 ## [v11.7.0](https://github.com/pnp/cli-microsoft365/releases/tag/v11.7.0)
 
 ### New commands