Prepare release 1.42.0 (#503)

otelbot[bot] · web-flow · commit 87896a416aaf · 2026-06-16T09:13:56.000-07:00
Co-authored-by: otelbot &lt;197425009+otelbot@users.noreply.github.com&gt;
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Changelog
 
-## Unreleased
+## Version 1.42.0 (2026-06-16)
 
 * Bump to semconv v1.42.0
   ([#497](https://github.com/open-telemetry/semantic-conventions-java/pull/497))
diff --git a/build.gradle.kts b/build.gradle.kts
@@ -7,7 +7,7 @@ plugins {
 }
 
 // start - updated by ./.github/workflows/prepare-release-branch.yml
-val snapshot = true
+val snapshot = false
 // end
 
 // The release version of https://github.com/open-telemetry/semantic-conventions used to generate classes
diff --git a/docs/apidiffs/current_vs_latest/opentelemetry-semconv.txt b/docs/apidiffs/current_vs_latest/opentelemetry-semconv.txt
@@ -1,4 +1,4 @@
-Comparing source compatibility of opentelemetry-semconv-1.42.0-SNAPSHOT.jar against opentelemetry-semconv-1.41.1.jar
+Comparing source compatibility of opentelemetry-semconv-1.42.0.jar against opentelemetry-semconv-1.41.1.jar
 +++  NEW CLASS: PUBLIC(+) FINAL(+) io.opentelemetry.semconv.ContainerAttributes  (not serializable)
 	+++  CLASS FILE FORMAT VERSION: 52.0 <- n.a.
 	+++  NEW SUPERCLASS: java.lang.Object

Original file line number	Diff line number	Diff line change
`@@ -7,7 +7,7 @@ plugins {`
`7`	`7`	`}`
`8`	`8`
`9`	`9`	`// start - updated by ./.github/workflows/prepare-release-branch.yml`
`10`		`-val snapshot = true`
	`10`	`+val snapshot = false`
`11`	`11`	`// end`
`12`	`12`
`13`	`13`	`// The release version of https://github.com/open-telemetry/semantic-conventions used to generate classes`
Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-Comparing source compatibility of opentelemetry-semconv-1.42.0-SNAPSHOT.jar against opentelemetry-semconv-1.41.1.jar`
	`1`	`+Comparing source compatibility of opentelemetry-semconv-1.42.0.jar against opentelemetry-semconv-1.41.1.jar`
`2`	`2`	`+++ NEW CLASS: PUBLIC(+) FINAL(+) io.opentelemetry.semconv.ContainerAttributes (not serializable)`
`3`	`3`	`+++ CLASS FILE FORMAT VERSION: 52.0 <- n.a.`
`4`	`4`	`+++ NEW SUPERCLASS: java.lang.Object`