+ +Read the [MediaWiki UPGRADE file](https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/core/+/refs/heads/REL1_42/UPGRADE). + +No Wikibase-specific migrations are necessary. + +
+ +Read the [MediaWiki UPGRADE file](https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/core/+/refs/heads/REL1_41/UPGRADE). + +No Wikibase-specific migrations are necessary. + +