diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index d04b0c0..b0f47b5 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "9.14.1"
+  ".": "9.15.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8bea9c5..e7f9459 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,20 @@
 
 All notable changes to the LaunchDarkly Python SDK will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [9.15.0](https://github.com/launchdarkly/python-server-sdk/compare/9.14.1...9.15.0) (2026-01-07)
+
+
+### Features
+
+* Drop support for python 3.9 ([#393](https://github.com/launchdarkly/python-server-sdk/issues/393)) ([5b761bd](https://github.com/launchdarkly/python-server-sdk/commit/5b761bd306e1e6973b59cea3f7657463de0204d1))
+
+
+### Bug Fixes
+
+* Add context manager for clearer, safer locks ([#396](https://github.com/launchdarkly/python-server-sdk/issues/396)) ([beca0fa](https://github.com/launchdarkly/python-server-sdk/commit/beca0fa4985f385cb3328408528e14696ec7c70f))
+* Address potential race condition in FeatureStore update_availability ([#391](https://github.com/launchdarkly/python-server-sdk/issues/391)) ([31cf487](https://github.com/launchdarkly/python-server-sdk/commit/31cf4875c35f08177105a16f65140acabe93d3da))
+* Stop FeatureStoreClientWrapper poller on close ([#397](https://github.com/launchdarkly/python-server-sdk/issues/397)) ([468afdf](https://github.com/launchdarkly/python-server-sdk/commit/468afdfef32f74f7cc82cb61f01f5674054da9db))
+
 ## [9.14.1](https://github.com/launchdarkly/python-server-sdk/compare/9.14.0...9.14.1) (2025-12-15)
 
 
diff --git a/PROVENANCE.md b/PROVENANCE.md
index 7f2da89..e5d7d71 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=9.14.1
+SDK_VERSION=9.15.0
 ```
 <!-- x-release-please-end -->
 
diff --git a/ldclient/version.py b/ldclient/version.py
index 56e2b5b..1986b70 100644
--- a/ldclient/version.py
+++ b/ldclient/version.py
@@ -1 +1 @@
-VERSION = "9.14.1"  # x-release-please-version
+VERSION = "9.15.0"  # x-release-please-version
diff --git a/pyproject.toml b/pyproject.toml
index 3a7e3ea..8acb2df 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "launchdarkly-server-sdk"
-version = "9.14.1"
+version = "9.15.0"
 description = "LaunchDarkly SDK for Python"
 authors = ["LaunchDarkly <dev@launchdarkly.com>"]
 license = "Apache-2.0"