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Changes later this week
- The new version of MediaWiki will be on test wikis and MediaWiki.org from 19 April. It will be on non-Wikipedia wikis and some Wikipedias from 20 April. It will be on all wikis from 21 April (calendar).
- Some wikis will be in read-only for a few minutes because of a switch of their main database. It will be performed on 19 April at 07:00 UTC (targeted wikis) and on 21 April at 7:00 UTC (targeted wikis).
- Administrators will now have the option to delete/undelete the associated “Talk” page when they are deleting a given page. An API endpoint with this option is also available. This concludes the 11th wish of the 2021 Community Wishlist Survey.
- On selected wikis, 50% of logged-in users will see the new table of contents. When scrolling up and down the page, the table of contents will stay in the same place on the screen. This is part of the Desktop Improvements project. 
- Message boxes produced by MediaWiki code will no longer have these CSS classes:
warningbox. The styles for those classes and
messageboxwill be removed from MediaWiki core. This only affects wikis that use these classes in wikitext, or change their appearance within site-wide CSS. Please review any local usage and definitions for these classes you may have. This was previously announced in the 28 February issue of Tech News.
- Kartographer will become compatible with FlaggedRevisions page stabilization. Kartographer maps will also work on pages with pending changes.  The Kartographer documentation has been thoroughly updated.