diff --git a/CHANGELOG.md b/CHANGELOG.md
index b1329651..7c58ca76 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 # OpenKit Native ( C/C++ ) Changelog
 
-## [Unreleased](https://github.com/Dynatrace/openkit-native/compare/v3.2.0...HEAD)
+## [Unreleased](https://github.com/Dynatrace/openkit-native/compare/v3.3.0...HEAD)
+
+## 3.3.0 [Release date: 2024-08-02]
+[GitHub Releases](https://github.com/Dynatrace/openkit-native/releases/tag/v3.3.0)
 
 ### Added
 
diff --git a/docs/supported_versions.md b/docs/supported_versions.md
index 9a709fae..55c6ac67 100644
--- a/docs/supported_versions.md
+++ b/docs/supported_versions.md
@@ -9,13 +9,14 @@ Example: Version `1.1.7` supersedes `1.1.6` and therefore only `1.1.7` will be m
 ## Active maintenance
 | Version | Bug fixes          | Security fixes     | Remarks          |
 |---------|:------------------:|:------------------:|------------------|
-| 3.2.X   | :heavy_check_mark: | :heavy_check_mark: |                  |
-| 3.1.X   | :heavy_check_mark: | :heavy_check_mark: |                  |
-| 3.0.X   | :heavy_check_mark: | :heavy_check_mark: |                  |
-| 2.1.X   | :heavy_check_mark: | :heavy_check_mark: |                  |
-| 2.0.X   |        :x:         |        :x:         | Upgrade to 2.1.X |
-| 1.1.X   |        :x:         |        :x:         | Upgrade to 2.1.X |
-| 1.0.X   |        :x:         |        :x:         | Upgrade to 2.1.X |
+| 3.3.X   | :heavy_check_mark: | :heavy_check_mark: |                  |
+| 3.2.X   |        :x:         | :heavy_check_mark: |                  |
+| 3.1.X   |        :x:         | :heavy_check_mark: |                  |
+| 3.0.X   |        :x:         | :heavy_check_mark: |                  |
+| 2.1.X   |        :x:         |        :x:         | Upgrade to 3.3.X |
+| 2.0.X   |        :x:         |        :x:         | Upgrade to 3.3.X |
+| 1.1.X   |        :x:         |        :x:         | Upgrade to 3.3.X |
+| 1.0.X   |        :x:         |        :x:         | Upgrade to 3.3.X |
 
 
 [semver]: https://semver.org/
\ No newline at end of file
diff --git a/docs/upgrade_guide.md b/docs/upgrade_guide.md
index bd125f41..7beb4f45 100644
--- a/docs/upgrade_guide.md
+++ b/docs/upgrade_guide.md
@@ -1,5 +1,19 @@
 # Upgrade guide for OpenKit C/C++
 
+## ## OpenKit .C/C++ 3.2 to 3.3
+There are no breaking API changes and upgrading is straightforward, by [updating][update] the library
+to the latest 3.3 release.
+
+### Deprecated API
+* `IWebRequestTracer::setBytesSent(int32_t bytes)`
+  Use `IWebRequestTracer::setBytesSent(int64_t bytes)` to increase the size range
+* `IWebRequestTracer::setBytesReceived(int32_t bytes)`
+  Use `IWebRequestTracer::setBytesReceived(int64_t bytes)` to increase the size range
+* `setBytesSent(struct WebRequestTracerHandle* webRequestTracerHandle, int32_t bytes)`
+  Use `setBytesSentLong(struct WebRequestTracerHandle* webRequestTracerHandle, int64_t bytes)` to increase the size range
+* `setBytesReceived(struct WebRequestTracerHandle* webRequestTracerHandle, int32_t bytes)`
+  Use `setBytesReceivedLong(struct WebRequestTracerHandle* webRequestTracerHandle, int64_t bytes)` to increase the size range
+
 ## ## OpenKit .C/C++ 3.1 to 3.2
 Be aware that some requirements (CMake, GCC, Clang) for the build have been changed, see [required programs][programs].
 
diff --git a/src/protocol/ProtocolConstants.h b/src/protocol/ProtocolConstants.h
index 74587a0c..9d7d684c 100644
--- a/src/protocol/ProtocolConstants.h
+++ b/src/protocol/ProtocolConstants.h
@@ -34,7 +34,7 @@ namespace protocol
 	constexpr const char* QUERY_KEY_SESSION_IDENTIFIER = "si";
 
 	// constant query parameter values
-	constexpr const char* OPENKIT_VERSION = "8.281.30300";
+	constexpr const char* OPENKIT_VERSION = "8.297.30300";
 	constexpr const char* PLATFORM_TYPE_OPENKIT = "1";
 	constexpr const char* AGENT_TECHNOLOGY_TYPE = "okc";
 	constexpr int32_t PROTOCOL_VERSION = 3;
diff --git a/version.properties b/version.properties
index 910429f0..9318b7cc 100644
--- a/version.properties
+++ b/version.properties
@@ -1 +1 @@
-version=3.3.0-SNAPSHOT
\ No newline at end of file
+version=3.3.0
\ No newline at end of file