Add a changelog entry

Author: msimacek

CHANGELOG.md

@@ -13,6 +13,8 @@ language runtime. The main focus is on user-observable behavior of the engine.
   * This means all Python methods of these types are available on the corresponding foreign objects, which behave as close as possible as if they were Python objects.
   * See [the documentation](https://github.com/oracle/graalpython/blob/master/docs/user/Interoperability.md#interacting-with-foreign-objects-from-python-scripts) for more information.
 * Remove support for running with Sulong managed both in embeddings as well as through the `graalpy-managed` launcher.
+* `pip` is now able to fetch newer versions of GraalPy patches for third-party packages from `graalpython` GitHub repository, allowing us to add new patches to released versions.
+  * The patch repository can be overridden using `PIP_GRAALPY_PATCHES_URL` environment variable, which can point to a local path or a URL. It can be disabled by setting it to an empty string.
 
 ## Version 24.1.0
 * GraalPy is now considered stable for pure Python workloads. While many workloads involving native extension modules work, we continue to consider them experimental. You can use the command-line option `--python.WarnExperimentalFeatures` to enable warnings for such modules at runtime. In Java embeddings the warnings are enabled by default and you can suppress them by setting the context option 'python.WarnExperimentalFeatures' to 'false'.