Hi,

The latest technical newsletter is now available at < https://meta.wikimedia.org/wiki/Special:MyLanguage/Tech/News/2021/18%3E. Below is the English version.

You can help write the next newsletter: whenever you see information about Wikimedia technology that you think should be distributed more broadly, you can add it to the next newsletter at < https://meta.wikimedia.org/wiki/Tech/News/Next%3E.

More information on how to contribute is available at < https://meta.wikimedia.org/wiki/Tech/News#contribute%3E. You can also contact me directly.

As always, feedback (on- or off-list) is appreciated and encouraged.

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Latest *tech news https://meta.wikimedia.org/wiki/Special:MyLanguage/Tech/News* from the Wikimedia technical community. Please tell other users about these changes. Not all changes will affect you. Translations https://meta.wikimedia.org/wiki/Special:MyLanguage/Tech/News/2021/18 are available.

*Recent changes*

- Twinkle https://en.wikipedia.org/wiki/en:Wikipedia:Twinkle is a gadget on English Wikipedia. It can help with maintenance and patrolling. It can now be used on other wikis https://meta.wikimedia.org/wiki/Grants:Project/Rapid/SD0001/Twinkle_localisation/Report. You can get Twinkle on your wiki using the twinkle-starter https://github.com/wikimedia-gadgets/twinkle-starter GitHub repository.

*Problems*

- The content translation tool https://www.mediawiki.org/wiki/Special:MyLanguage/Content_translation did not work for many articles for a little while. This was because of a bug. [1] https://phabricator.wikimedia.org/T281346 - Some things will not work for about a minute on 5 May. This will happen around 06:00 UTC https://www.timeanddate.com/worldclock/fixedtime.html?iso=20210505T0600. This will affect the content translation tool and notifications among other things. This is because of an upgrade to avoid crashes. [2] https://phabricator.wikimedia.org/T281212

*Changes later this week*

- Reference Previews https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Reference_Previews will become a default feature on a number of wikis on 5 May. This is later than planned because of some changes. You can use it without using Page Previews https://www.mediawiki.org/wiki/Special:MyLanguage/Page_Previews if you want to. The earlier plan was to have the preference to use both or none. [3] https://phabricator.wikimedia.org/T271206[4] https://meta.wikimedia.org/wiki/Talk:WMDE_Technical_Wishes/ReferencePreviews - [image: Recurrent item] The new version https://www.mediawiki.org/wiki/MediaWiki_1.37/wmf.4 of MediaWiki will be on test wikis and MediaWiki.org from 4 May. It will be on non-Wikipedia wikis and some Wikipedias from 5 May. It will be on all wikis from 6 May ( calendar https://www.mediawiki.org/wiki/MediaWiki_1.37/Roadmap).

*Future changes*

- [image: Advanced item] The CSS https://en.wikipedia.org/wiki/en:CSS classes .error, .warning and .success do not work for mobile readers if they have not been specifically defined on your wiki. From June they will not work for desktop readers. This can affect gadgets and templates. The classes can be defined in MediaWiki:Common.css https://meta.wikimedia.org/wiki/MediaWiki:Common.css or template styles instead. [5] https://phabricator.wikimedia.org/T280766

*Tech news https://meta.wikimedia.org/wiki/Special:MyLanguage/Tech/News prepared by Tech News writers https://meta.wikimedia.org/wiki/Special:MyLanguage/Tech/News/Writers and posted by bot https://meta.wikimedia.org/wiki/Special:MyLanguage/User:MediaWiki_message_delivery • Contribute https://meta.wikimedia.org/wiki/Special:MyLanguage/Tech/News#contribute • Translate https://meta.wikimedia.org/wiki/Special:MyLanguage/Tech/News/2021/18 • Get help https://meta.wikimedia.org/wiki/Tech • Give feedback https://meta.wikimedia.org/wiki/Talk:Tech/News • Subscribe or unsubscribe https://meta.wikimedia.org/wiki/Global_message_delivery/Targets/Tech_ambassadors.*

//Johan Jönsson