diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2d57a7876000..91254edc3bb3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,27 @@
 # Changelog
 
 ## Current develop
+### Added (new features/APIs/variables/...)
+
+
+### Changed (changing behavior/API/variables/...)
+
+
+### Fixed (not changing behavior/API/variables/...)
+
+
+### Infrastructure (changes irrelevant to downstream codes)
+
+
+### Removed (removing behavior/API/varaibles/...)
+
+
+### Incompatibilities (i.e. breaking changes)
+
+
+
+## Release 25.05
+Date: 2025-05-19
 
 ### Added (new features/APIs/variables/...)
 - [[PR 1247]](https://github.com/parthenon-hpc-lab/parthenon/pull/1247) Add ability to output to HDF5 non-standard MeshData object
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5953f75433b7..161784243488 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,7 +20,7 @@ cmake_minimum_required(VERSION 3.16)
 # Imports machine-specific configuration
 include(cmake/MachineCfg.cmake)
 
-project(parthenon VERSION 24.08 LANGUAGES C CXX)
+project(parthenon VERSION 25.05 LANGUAGES C CXX)
 
 if (${CMAKE_VERSION} VERSION_GREATER_EQUAL 3.19.0)
   cmake_policy(SET CMP0110 NEW)