Prepare the 0.2.0 release

.github/workflows/ci.yml

@@ -119,7 +119,7 @@ jobs:
           java-version: 17
           cache: maven
 
-      - name: Install snapshot artifacts
+      - name: Install reactor artifacts locally
         run: ./mvnw -B -ntp -DskipTests -Djacoco.skip=true install
 
       - name: Compile Spring AI consumer

.github/workflows/release.yml

@@ -199,9 +199,11 @@ jobs:
             esac
           done
 
-          echo "release_tag=$release_tag" >> "$GITHUB_OUTPUT"
-          echo "release_sha=$release_sha" >> "$GITHUB_OUTPUT"
-          echo "version=$pom_version" >> "$GITHUB_OUTPUT"
+          {
+            echo "release_tag=$release_tag"
+            echo "release_sha=$release_sha"
+            echo "version=$pom_version"
+          } >> "$GITHUB_OUTPUT"
 
           {
             echo "### Release preflight"

CHANGELOG.md

@@ -1,6 +1,8 @@
 # Changelog
 
-## [Unreleased] - 0.2.0 Production Preview
+## [Unreleased]
+
+## [0.2.0] - 2026-07-24
 
 ### Added
 
@@ -27,6 +29,8 @@
 - The Boot 3 line now uses Spring Boot 3.5.16, Spring AI 1.0.9, OpenTelemetry 1.62.0, and Netty
   4.1.136.Final; CI also covers Spring AI 1.1.8 and LangChain4j 1.18.0
 - `0.2.x` remains the Boot 3/Spring AI 1 line; Boot 4/Spring AI 2 moves to `0.3.x`
+- The standalone exporter now uses the JDK HTTP sender, avoiding OkHttp and Kotlin classpath
+  conflicts with the optional `langfuse-java` prompt client
 - Maven Central publication stops at `VALIDATED` for manual approval before the GitHub release is
   published
 

README.md

@@ -22,15 +22,15 @@ or own a dedicated Langfuse exporter.
 
 ## Quick Start
 
-`0.2.0-SNAPSHOT` is the current production-preview development line. Build it locally with `./mvnw clean install`; use `0.1.1` when resolving only from Maven Central until 0.2.0 is released.
+`0.2.0` is the current production-preview release line.
 
 ### Spring Boot (Dedicated Exporter Quick Start)
 
 ```xml
 <dependency>
     <groupId>io.github.chomingi</groupId>
     <artifactId>langfuse-otel-spring-boot-starter</artifactId>
-    <version>0.2.0-SNAPSHOT</version>
+    <version>0.2.0</version>
 </dependency>
 ```
 
@@ -56,7 +56,7 @@ Standalone endpoints must use HTTPS. For a loopback development receiver only, p
 <dependency>
     <groupId>io.github.chomingi</groupId>
     <artifactId>langfuse-otel-core</artifactId>
-    <version>0.2.0-SNAPSHOT</version>
+    <version>0.2.0</version>
 </dependency>
 ```
 
@@ -331,7 +331,8 @@ Keep this component out of liveness. Add it to readiness only when losing Langfu
 - Custom concrete publisher subtypes are returned unchanged when a compatible wrapper type cannot
   be preserved.
 
-Remaining production work is tracked in [ROADMAP.md](ROADMAP.md); `0.2.0-SNAPSHOT` is not the final production release.
+`0.2.x` remains a production-preview line. Work for later releases is tracked in
+[ROADMAP.md](ROADMAP.md).
 
 ## Compatibility
 

SECURITY.md

@@ -54,6 +54,6 @@ The standalone transport contract test also verifies that cross-origin redirects
 | Version | Supported |
 |---------|-----------|
 | 0.2.x   | Production preview; maintained from 0.2.0 |
-| 0.1.x   | Security fixes until 0.2.0 is released |
+| 0.1.x   | No longer supported; upgrade to 0.2.x |
 
 When `0.3.0` moves the starter to Spring Boot 4 and Spring AI 2, `0.2.x` will remain in maintenance for six months. That window covers critical vulnerabilities and regressions owned by this library; it does not extend the support lifecycle of Spring Boot 3 or other upstream dependencies.

consumer-tests/core-prompt-consumer/pom.xml

@@ -10,7 +10,7 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <maven.compiler.release>11</maven.compiler.release>
-        <langfuse-otel.version>0.2.0-SNAPSHOT</langfuse-otel.version>
+        <langfuse-otel.version>0.2.0</langfuse-otel.version>
         <junit.version>5.9.3</junit.version>
     </properties>
 

examples/README.md

@@ -1,7 +1,7 @@
 # Examples
 
 These are standalone consumer projects rather than modules in the main Maven build. Install the
-current snapshot from the repository root, then provide test credentials:
+current repository artifacts from the repository root, then provide test credentials:
 
 ```bash
 ./mvnw -B -ntp -DskipTests -Djacoco.skip=true install

examples/langchain4j-example/pom.xml

@@ -16,7 +16,7 @@
     <properties>
         <java.version>17</java.version>
         <jackson-bom.version>2.21.5</jackson-bom.version>
-        <langfuse-otel.version>0.2.0-SNAPSHOT</langfuse-otel.version>
+        <langfuse-otel.version>0.2.0</langfuse-otel.version>
     </properties>
 
     <dependencies>

examples/spring-ai-example/pom.xml

@@ -16,7 +16,7 @@
     <properties>
         <java.version>17</java.version>
         <jackson-bom.version>2.21.5</jackson-bom.version>
-        <langfuse-otel.version>0.2.0-SNAPSHOT</langfuse-otel.version>
+        <langfuse-otel.version>0.2.0</langfuse-otel.version>
     </properties>
 
     <dependencies>

langfuse-otel-core/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>io.github.chomingi</groupId>
         <artifactId>langfuse-otel-java</artifactId>
-        <version>0.2.0-SNAPSHOT</version>
+        <version>0.2.0</version>
     </parent>
 
     <artifactId>langfuse-otel-core</artifactId>

langfuse-otel-spring-boot-starter/pom.xml

@@ -6,7 +6,7 @@
     <parent>
         <groupId>io.github.chomingi</groupId>
         <artifactId>langfuse-otel-java</artifactId>
-        <version>0.2.0-SNAPSHOT</version>
+        <version>0.2.0</version>
     </parent>
 
     <artifactId>langfuse-otel-spring-boot-starter</artifactId>

pom.xml

@@ -5,7 +5,7 @@
 
     <groupId>io.github.chomingi</groupId>
     <artifactId>langfuse-otel-java</artifactId>
-    <version>0.2.0-SNAPSHOT</version>
+    <version>0.2.0</version>
     <packaging>pom</packaging>
 
     <name>langfuse-otel-java</name>
@@ -40,7 +40,7 @@
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-        <project.build.outputTimestamp>2026-07-19T00:00:00Z</project.build.outputTimestamp>
+        <project.build.outputTimestamp>2026-07-23T16:38:13Z</project.build.outputTimestamp>
         <otel.version>1.62.0</otel.version>
         <otel.proto.version>1.3.2-alpha</otel.proto.version>
         <slf4j.version>2.0.18</slf4j.version>