diff --git a/CHANGELOG.md b/CHANGELOG.md
index 921401a..f681a0c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [5.0.0] - 2025-09-03
+
+### Refactor
+
+- [**breaking**] Replace `retention_age` with `retention_policy`  ([#104](https://github.com/s2-streamstore/s2-sdk-python/issues/104))
+
 ## [4.0.0] - 2025-08-11
 
 ### Features
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 83ed5ab..7bb8cbb 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -10,7 +10,7 @@
 
 project = "streamstore"
 copyright = f"{date.today().year}, Bandar Systems Inc"
-release = "4.0.0"
+release = "5.0.0"
 
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
diff --git a/pyproject.toml b/pyproject.toml
index b33fdb4..e44d4f0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "streamstore"
-version = "4.0.0"
-description = "Python SDK for S2, the Stream Store"
+version = "5.0.0"
+description = "Python SDK for s2.dev"
 readme = "README.md"
 requires-python = ">=3.11"
 dependencies = [
diff --git a/uv.lock b/uv.lock
index b816e07..f50440b 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1091,7 +1091,7 @@ wheels = [
 
 [[package]]
 name = "streamstore"
-version = "4.0.0"
+version = "5.0.0"
 source = { editable = "." }
 dependencies = [
     { name = "anyio" },