Update version to 2.28.0-SNAPSHOT (#18115)

Co-authored-by: otelbot <197425009+otelbot@users.noreply.github.com>

Author: otelbot[bot]

CHANGELOG.md

@@ -2,6 +2,15 @@
 
 ## Unreleased
 
+## Version 2.27.0 (2026-04-21)
+
+This release targets the OpenTelemetry SDK 1.61.0.
+
+Note that many artifacts have the `-alpha` suffix attached to their version
+number, reflecting that they will continue to have breaking changes. Please see
+[VERSIONING.md](https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/VERSIONING.md#opentelemetry-java-instrumentation-versioning)
+for more details.
+
 ### ⚠️ Breaking changes to non-stable APIs
 
 - Make `AbstractKtorServerTelemetryBuilder.isOpenTelemetryInitialized()` protected (previously

docs/apidiffs/current_vs_latest/opentelemetry-instrumentation-annotations.txt

@@ -1,2 +1,2 @@
-Comparing source compatibility of opentelemetry-instrumentation-annotations-2.27.0-SNAPSHOT.jar against opentelemetry-instrumentation-annotations-2.26.1.jar
+Comparing source compatibility of opentelemetry-instrumentation-annotations-2.28.0-SNAPSHOT.jar against opentelemetry-instrumentation-annotations-2.26.1.jar
 No changes.

docs/apidiffs/current_vs_latest/opentelemetry-instrumentation-api.txt

@@ -1,2 +1,2 @@
-Comparing source compatibility of opentelemetry-instrumentation-api-2.27.0-SNAPSHOT.jar against opentelemetry-instrumentation-api-2.26.1.jar
+Comparing source compatibility of opentelemetry-instrumentation-api-2.28.0-SNAPSHOT.jar against opentelemetry-instrumentation-api-2.26.1.jar
 No changes.

docs/apidiffs/current_vs_latest/opentelemetry-spring-boot-autoconfigure.txt

@@ -1,2 +1,2 @@
-Comparing source compatibility of opentelemetry-spring-boot-autoconfigure-2.27.0-SNAPSHOT.jar against opentelemetry-spring-boot-autoconfigure-2.26.1.jar
+Comparing source compatibility of opentelemetry-spring-boot-autoconfigure-2.28.0-SNAPSHOT.jar against opentelemetry-spring-boot-autoconfigure-2.26.1.jar
 No changes.

docs/apidiffs/current_vs_latest/opentelemetry-spring-boot-starter.txt

@@ -1,2 +1,2 @@
-Comparing source compatibility of opentelemetry-spring-boot-starter-2.27.0-SNAPSHOT.jar against opentelemetry-spring-boot-starter-2.26.1.jar
+Comparing source compatibility of opentelemetry-spring-boot-starter-2.28.0-SNAPSHOT.jar against opentelemetry-spring-boot-starter-2.26.1.jar
 No changes.

examples/distro/build.gradle

@@ -14,7 +14,7 @@ buildscript {
   dependencies {
     classpath "com.diffplug.spotless:spotless-plugin-gradle:8.4.0"
     classpath "com.gradleup.shadow:shadow-gradle-plugin:9.4.1"
-    classpath "io.opentelemetry.instrumentation:gradle-plugins:2.27.0-alpha-SNAPSHOT"
+    classpath "io.opentelemetry.instrumentation:gradle-plugins:2.28.0-alpha-SNAPSHOT"
   }
 }
 
@@ -30,8 +30,8 @@ subprojects {
       opentelemetrySdk           : "1.61.0",
 
       // these lines are managed by .github/scripts/update-version.sh
-      opentelemetryJavaagent     : "2.27.0-SNAPSHOT",
-      opentelemetryJavaagentAlpha: "2.27.0-alpha-SNAPSHOT",
+      opentelemetryJavaagent     : "2.28.0-SNAPSHOT",
+      opentelemetryJavaagentAlpha: "2.28.0-alpha-SNAPSHOT",
 
       autoservice                : "1.1.1"
     ]

examples/extension/build.gradle.kts

@@ -15,8 +15,8 @@ plugins {
   id("com.gradleup.shadow") version "9.4.1"
   id("com.diffplug.spotless") version "8.4.0"
 
-  id("io.opentelemetry.instrumentation.muzzle-generation") version "2.27.0-alpha-SNAPSHOT"
-  id("io.opentelemetry.instrumentation.muzzle-check") version "2.27.0-alpha-SNAPSHOT"
+  id("io.opentelemetry.instrumentation.muzzle-generation") version "2.28.0-alpha-SNAPSHOT"
+  id("io.opentelemetry.instrumentation.muzzle-check") version "2.28.0-alpha-SNAPSHOT"
 }
 
 group = "io.opentelemetry.example"
@@ -27,8 +27,8 @@ val versions = mapOf(
   "opentelemetrySdk" to "1.61.0",
 
   // these lines are managed by .github/scripts/update-version.sh
-  "opentelemetryJavaagent" to "2.27.0-SNAPSHOT",
-  "opentelemetryJavaagentAlpha" to "2.27.0-alpha-SNAPSHOT"
+  "opentelemetryJavaagent" to "2.28.0-SNAPSHOT",
+  "opentelemetryJavaagentAlpha" to "2.28.0-alpha-SNAPSHOT"
 )
 
 val deps = mapOf(

version.gradle.kts

@@ -1,5 +1,5 @@
-val stableVersion = "2.27.0-SNAPSHOT"
-val alphaVersion = "2.27.0-alpha-SNAPSHOT"
+val stableVersion = "2.28.0-SNAPSHOT"
+val alphaVersion = "2.28.0-alpha-SNAPSHOT"
 
 allprojects {
   if (findProperty("otel.stable") != "true") {