Pull request #256: RUM-10675 Release version for OK Java

Merge in OP/openkit-java from feature/RUM-10675-releasing-openkit-java-main-prepare to main

* commit '04f1ca690ded564fc75f1d214842841aba30b964':
  RUM-10675 Updating docs
  RUM-10675 Release version for OK Java

GitOrigin-RevId: 7058d72e72f476d7f27faeeafbae26ed43bdc5de

Author: TheHighriser

CHANGELOG.md

@@ -1,6 +1,9 @@
 # OpenKit Java Changelog
 
-## [Unreleased](https://github.com/Dynatrace/openkit-java/compare/v3.0.0...HEAD)
+## [Unreleased](https://github.com/Dynatrace/openkit-java/compare/v3.1.0...HEAD)
+
+## 3.1.0 [Release date: 2023-06-05]
+[GitHub Releases](https://github.com/Dynatrace/openkit-java/releases/tag/v3.1.0)
 
 ### Changed
 

docs/supported_versions.md

@@ -9,6 +9,7 @@ Example: Version `1.4.3` supersedes `1.4.2` and therefore only `1.4.3` will be m
 ## Active maintenance
 | Version | Bug fixes          | Security fixes     | Remarks          |
 |---------|:------------------:|:------------------:|------------------|
+| 3.1.X   | :heavy_check_mark: | :heavy_check_mark: |                  |
 | 3.0.X   | :heavy_check_mark: | :heavy_check_mark: |                  |
 | 2.2.X   | :heavy_check_mark: | :heavy_check_mark: |                  |
 | 2.1.X   |        :x:         |        :x:         | Upgrade to 2.2.X | 

docs/upgrade_guide.md

@@ -1,5 +1,9 @@
 # Upgrade guide for OpenKit Java
 
+## OpenKit Java 3.0 to 3.1
+There are no breaking API changes and upgrading is straightforward, by [updating][update] the library
+to the latest 3.1 release.
+
 ## OpenKit Java 2.2 to 3.0
 Appmon has been removed from OpenKit Java. If you don't want to replace your AppMon related code stay on the latest 2.2.x release.
 

src/main/java/com/dynatrace/openkit/protocol/ProtocolConstants.java

@@ -19,7 +19,7 @@
 public class ProtocolConstants {
 
     // version constants
-    public static final String OPENKIT_VERSION = "8.257.30100";
+    public static final String OPENKIT_VERSION = "8.267.30100";
     public static final int PROTOCOL_VERSION = 3;
     public static final int PLATFORM_TYPE_OPENKIT = 1;
     public static final String AGENT_TECHNOLOGY_TYPE = "okjava";

version.properties

@@ -1 +1 @@
-version=3.1.0-SNAPSHOT
+version=3.1.0