diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2cd73209..048d674e 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "9.11.1"
+  ".": "9.12.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5c795243..99d064e7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,18 @@
 
 All notable changes to the LaunchDarkly Python SDK will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [9.12.0](https://github.com/launchdarkly/python-server-sdk/compare/9.11.1...9.12.0) (2025-07-11)
+
+
+### ⚠ BREAKING CHANGES
+
+* Drop support for Python 3.8 (eol 2024-10-07) ([#339](https://github.com/launchdarkly/python-server-sdk/issues/339))
+
+### Features
+
+* Add support for plugins. ([#337](https://github.com/launchdarkly/python-server-sdk/issues/337)) ([241f6f4](https://github.com/launchdarkly/python-server-sdk/commit/241f6f49b203044f801fdfc976f7d446225ec5e1))
+* Drop support for Python 3.8 (eol 2024-10-07) ([#339](https://github.com/launchdarkly/python-server-sdk/issues/339)) ([0207665](https://github.com/launchdarkly/python-server-sdk/commit/02076650064d8a20f792c80cda3249a7aa7e336a))
+
 ## [9.11.1](https://github.com/launchdarkly/python-server-sdk/compare/9.11.0...9.11.1) (2025-05-29)
 
 
diff --git a/PROVENANCE.md b/PROVENANCE.md
index 6aa0ad5c..4b23688b 100644
--- a/PROVENANCE.md
+++ b/PROVENANCE.md
@@ -9,7 +9,7 @@ To verify SLSA provenance attestations, we recommend using [slsa-verifier](https
 <!-- x-release-please-start-version -->
 ```
 # Set the version of the SDK to verify
-SDK_VERSION=9.11.1
+SDK_VERSION=9.12.0
 ```
 <!-- x-release-please-end -->
 
diff --git a/ldclient/version.py b/ldclient/version.py
index ed32cbac..5440358f 100644
--- a/ldclient/version.py
+++ b/ldclient/version.py
@@ -1 +1 @@
-VERSION = "9.11.1"  # x-release-please-version
+VERSION = "9.12.0"  # x-release-please-version
diff --git a/pyproject.toml b/pyproject.toml
index e0d0a487..7bb52804 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "launchdarkly-server-sdk"
-version = "9.11.1"
+version = "9.12.0"
 description = "LaunchDarkly SDK for Python"
 authors = ["LaunchDarkly <dev@launchdarkly.com>"]
 license = "Apache-2.0"