chore(main): release 9.15.0 (#394)

🤖 I have created a release *beep* *boop*
---


##
[9.15.0](9.14.1...9.15.0)
(2026-02-10)


### Features

* Drop support for python 3.9
([#393](#393))
([5b761bd](5b761bd))
* Update ChangeSet to always require a Selector
([#405](#405))
([5dc4f81](5dc4f81))


### Bug Fixes

* Add context manager for clearer, safer locks
([#396](#396))
([beca0fa](beca0fa))
* Address potential race condition in FeatureStore update_availability
([#391](#391))
([31cf487](31cf487))
* Allow modifying fdv2 data source options independent of main config
([#403](#403))
([d78079e](d78079e))
* Mark copy_with_new_sdk_key method as deprecated
([#353](#353))
([e471ccc](e471ccc))
* Prevent immediate polling on recoverable error
([#399](#399))
([da565a2](da565a2))
* Redis store is considered initialized when `$inited` key is written
([e99a27d](e99a27d))
* Stop FeatureStoreClientWrapper poller on close
([#397](#397))
([468afdf](468afdf))
* Update DataSystemConfig to accept list of synchronizers
([#404](#404))
([c73ad14](c73ad14))
* Update reason documentation with inExperiment value
([#401](#401))
([cbfc3dd](cbfc3dd))
* Update Redis to write missing `$inited` key
([e99a27d](e99a27d))

---
This PR was generated with [Release
Please](https://github.com/googleapis/release-please). See
[documentation](https://github.com/googleapis/release-please#release-please).

<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **Low Risk**
> Release-only changes (version strings and documentation) with no
functional code modifications in this diff.
> 
> **Overview**
> Bumps the SDK release from `9.14.1` to `9.15.0` across version sources
(`pyproject.toml`, `ldclient/version.py`, release-please manifest) and
updates `PROVENANCE.md` to reference the new version.
> 
> Updates `CHANGELOG.md` with the `9.15.0` release notes, including FDv2
EAP breaking API adjustments (e.g., `ChangeSetBuilder.finish()` now
requires a `Selector`, and `DataSystemConfig.synchronizers` supports
multiple synchronizers), Python 3.9 support drop, and a set of bug-fix
entries.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
71a9224. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: jsonbailey <jbailey@launchdarkly.com>

Author: github-actions[bot]

.release-please-manifest.json

@@ -1,3 +1,3 @@
 {
-  ".": "9.14.1"
+  ".": "9.15.0"
 }

CHANGELOG.md

@@ -2,6 +2,35 @@
 
 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) (2026-02-10)
+
+
+### ⚠ BREAKING CHANGES
+
+**Note:** The following breaking changes apply only to FDv2 (Flag Delivery v2) early access features, which are not subject to semantic versioning and may change without a major version bump.
+
+* Update ChangeSet to always require a Selector ([#405](https://github.com/launchdarkly/python-server-sdk/issues/405)) ([5dc4f81](https://github.com/launchdarkly/python-server-sdk/commit/5dc4f81688e814045373edb244e0420fa572d922))
+  * The `ChangeSetBuilder.finish()` method now requires a `Selector` parameter.
+* Update DataSystemConfig to accept list of synchronizers ([#404](https://github.com/launchdarkly/python-server-sdk/issues/404)) ([c73ad14](https://github.com/launchdarkly/python-server-sdk/commit/c73ad14090ef1378af1bfbe626a74eb369e3cac8))
+  * The `DataSystemConfig.synchronizers` field now accepts a list of synchronizers, and the `ConfigBuilder.synchronizers()` method accepts variadic arguments.
+
+### 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))
+* Allow modifying fdv2 data source options independent of main config ([#403](https://github.com/launchdarkly/python-server-sdk/issues/403)) ([d78079e](https://github.com/launchdarkly/python-server-sdk/commit/d78079e7f340690c17f39ef73dd9a45e6f365fd7))
+* Mark copy_with_new_sdk_key method as deprecated ([#353](https://github.com/launchdarkly/python-server-sdk/issues/353)) ([e471ccc](https://github.com/launchdarkly/python-server-sdk/commit/e471ccc3d5f4c37452d8a2ebba58248ca0a155dd))
+* Prevent immediate polling on recoverable error ([#399](https://github.com/launchdarkly/python-server-sdk/issues/399)) ([da565a2](https://github.com/launchdarkly/python-server-sdk/commit/da565a2dce67fc386396686dd2017819e2c4edfb))
+* Redis store is considered initialized when `$inited` key is written ([e99a27d](https://github.com/launchdarkly/python-server-sdk/commit/e99a27d48f1fc2bd81b1791fd57cb1a8ab754569))
+* Stop FeatureStoreClientWrapper poller on close ([#397](https://github.com/launchdarkly/python-server-sdk/issues/397)) ([468afdf](https://github.com/launchdarkly/python-server-sdk/commit/468afdfef32f74f7cc82cb61f01f5674054da9db))
+* Update reason documentation with inExperiment value ([#401](https://github.com/launchdarkly/python-server-sdk/issues/401)) ([cbfc3dd](https://github.com/launchdarkly/python-server-sdk/commit/cbfc3dd8876eae9ffa352ec12a1131a64110c08a))
+* Update Redis to write missing `$inited` key ([e99a27d](https://github.com/launchdarkly/python-server-sdk/commit/e99a27d48f1fc2bd81b1791fd57cb1a8ab754569))
+
 ## [9.14.1](https://github.com/launchdarkly/python-server-sdk/compare/9.14.0...9.14.1) (2025-12-15)
 
 

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 -->
 

ldclient/version.py

@@ -1 +1 @@
-VERSION = "9.14.1"  # x-release-please-version
+VERSION = "9.15.0"  # x-release-please-version

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"