Release status: stable
|Description||Provides an interface for migrating article text to new versions of the MediaWiki parser|
|Latest version||Continuous updates|
|Compatibility policy||Snapshots releases along with MediaWiki. Master is not backward compatible.|
|License||Creative Commons Zero v1.0 Universal|
|Translate the ParserMigration extension if it is available at translatewiki.net|
|Issues||Open tasks · Report a bug|
The ParserMigration extension was introduced in gerrit:296182. It provides an interface for comparing article rendering with a new non-default version of the MediaWiki parser thus serving as a parser migration tool.
It was deployed on the Wikimedia production cluster until 2018 to compare Tidy-based output with a RemexHTML-based output. RemexHTML was the replacement for Tidy. In 2023 it was redeployed in order to compare legacy wikitext parser output with output generated by the Parsoid wikitext parser.
The availability of the tool can be controlled by a user via the "parsermigration" preference option.
Using the extension
- Download and place the file(s) in a directory called
- Add the following code at the bottom of your LocalSettings.php file:
wfLoadExtension( 'ParserMigration' );
- Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.
For the 2018-era deployment of the ParserMigration tool, see: