Version 1.5 of wikidiff2 is functionally the same as the current deployed version when wgWikiDiff2MovedParagraphDetectionCutoff is not set.
Due to this fact we should be able to update the php extension on one of both of the mwdebug hosts and optionally set wgWikiDiff2MovedParagraphDetectionCutoff in mediawiki-config based on site and or hostname to make sure nothing explodes before rolling out further.
The steps will look something like:
- - Update the wikidiff2 version on beta cluster to 1.5 (currently 1.4.1)
Enable new functionality by setting wgWikiDiff2MovedParagraphDetectionCutoff in production for group0 on the mwdebug servers only.
Further testing of the new version of wikidiff2 in on the mwdebug servers
- - Update the wikidiff2 version on all mediawiki servers (if not already done above)
- - Set wgWikiDiff2MovedParagraphDetectionCutoff for group0
- - Set wgWikiDiff2MovedParagraphDetectionCutoff for dewiki