diff --git a/CMakeLists.txt b/CMakeLists.txt
index d57174aa8..797bfe24a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,7 +3,7 @@ cmake_minimum_required(VERSION 3.5.1 FATAL_ERROR)
 #============================================================================
 # Initialize the project
 #============================================================================
-project(gz-physics6 VERSION 6.4.0)
+project(gz-physics6 VERSION 6.5.0)
 
 #============================================================================
 # Find gz-cmake
diff --git a/Changelog.md b/Changelog.md
index 10d2bd407..7801744a7 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,6 +1,24 @@
 ## Gazebo Physics 6.x
 
-### Gazebo Physics 6.x.x (202X-XX-XX)
+### Gazebo Physics 6.5.0 (2023-08-30)
+
+1. Add optional binary relocatability
+    * [Pull request #507](https://github.com/gazebosim/gz-physics/pull/507)
+
+1. Unregister collision detectors when the darstim plugin is unloaded
+    * [Pull request #529](https://github.com/gazebosim/gz-physics/pull/529)
+
+1. Minor cleanup of dartsim
+    * [Pull request #515](https://github.com/gazebosim/gz-physics/pull/515)
+
+1. Fix Github project automation for new project board
+    * [Pull request #527](https://github.com/gazebosim/gz-physics/pull/527)
+
+1. Check that plugin exists before adding common test
+    * [Pull request #523](https://github.com/gazebosim/gz-physics/pull/523)
+
+1. Clangtidy fixes
+    * [Pull request #514](https://github.com/gazebosim/gz-physics/pull/514)
 
 ### Gazebo Physics 6.4.0 (2023-05-22)
 
@@ -206,6 +224,18 @@
 
 ## Gazebo Physics 5.x
 
+### Gazebo Physics 5.3.2 (2023-09-01)
+
+1. Fix a crash due to an invalid pointer
+    * [Pull request #486](https://github.com/gazebosim/gz-physics/pull/486)
+
+1. Infrastructure
+    * [Pull request #490](https://github.com/gazebosim/gz-physics/pull/490)
+    * [Pull request #488](https://github.com/gazebosim/gz-physics/pull/488)
+
+1. Rename COPYING to LICENSE
+    * [Pull request #487](https://github.com/gazebosim/gz-physics/pull/487)
+
 ### Gazebo Physics 5.3.1 (2023-02-16)
 
 1. Fix memory corruption due to faulty refcount tracking