diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index b5e9157..a3a12f4 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "5.2.0"
+  ".": "6.0.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index dadf9f7..243065b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,21 @@
 All notable changes to this project are documented here.
 New entries are appended automatically by [release-please](https://github.com/googleapis/release-please).
 
+## [6.0.0](https://github.com/Miragon/bpmn-to-code/compare/v5.2.0...v6.0.0) (2026-08-13)
+
+
+### ⚠ BREAKING CHANGES
+
+* **core:** typed process navigation via reshaped Relations ([#55](https://github.com/Miragon/bpmn-to-code/issues/55))
+* **domain,json:** BPMN-aligned sealed domain model and process JSON v2 ([#81](https://github.com/Miragon/bpmn-to-code/issues/81))
+
+### Features
+
+* **core:** typed process navigation via reshaped Relations ([#55](https://github.com/Miragon/bpmn-to-code/issues/55)) ([3bcb956](https://github.com/Miragon/bpmn-to-code/commit/3bcb9560d6ed0351e035b38eed0a4457ad435e99))
+* **domain,json:** BPMN-aligned sealed domain model and process JSON v2 ([#81](https://github.com/Miragon/bpmn-to-code/issues/81)) ([a1d21b9](https://github.com/Miragon/bpmn-to-code/commit/a1d21b9710059adc96266657ebb7add07aea2681))
+* **json:** expose interrupting flag on boundary and event sub-process start events ([#78](https://github.com/Miragon/bpmn-to-code/issues/78)) ([21353f4](https://github.com/Miragon/bpmn-to-code/commit/21353f4b7e30335debc8a5546e37d446f213edbb))
+* **json:** expose zeebe message-subscription correlationKey in message-event properties ([#80](https://github.com/Miragon/bpmn-to-code/issues/80)) ([8cb7e18](https://github.com/Miragon/bpmn-to-code/commit/8cb7e182586238758a76eb29e0c4c67cbc8691ec))
+
 ## [5.2.0](https://github.com/Miragon/bpmn-to-code/compare/v5.1.0...v5.2.0) (2026-08-03)
 
 
diff --git a/gradle.properties b/gradle.properties
index 94368dc..d92bce0 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -5,5 +5,5 @@ org.gradle.configuration-cache=true
 org.gradle.parallel=true
 org.gradle.caching=true
 # x-release-please-start-version
-projectVersion=5.2.0
+projectVersion=6.0.0
 # x-release-please-end