API:REST API/Changelog

MediaWiki APIs are periodically updated with new features, documentation, and fixes for known issues. This page provides an overview of these changes, making it easier for developers to keep track of improvements and iterations.

October 2025

First draft of the Changelog page. This document is the first example of adopting the published API Changelog guidelines.

The changes below apply to MediaWiki version 1.45.

Changed

• Week of October 13: Mark trailing slash Transform endpoints as deprecated. These endpoints remain functional, but will be fully sunsetted and removed by the end of January, 2026.
  • For more information about Wikimedia API deprecation policies and procedures, see API/Deprecation.
  • For more more information about removing the trailing slash endpoints specifically, see: https://phabricator.wikimedia.org/T404855

Added

• October 13: Create a dedicated Changelog for MediaWiki REST APIs.
• October 20: Launch REST Sandbox on all wiki projects. The REST API sandbox can now be accessed through the Special:RestSandbox page on any wiki.

Removed

• ...

Fixed

• ...