https://translatewiki.net/w/i.php?title=Special:Translations&message=MediaWiki%3ASandboxlink-subpage-name looks really poor (26 languages translated only). We have this gadget on plenty more wikis in plenty more languages. I'm going to do some manual work to import at least the subpage name translations (since that will be the most annoying not to have) and maybe the labels too.
|Open||None||T64559 Redesign Special:Preferences (tracking)|
|Open||None||T71550 Move code in enwiki MediaWiki:Common.js and Gadgets to MediaWiki software|
|Resolved||None||T72499 Deploy SandboxLink extension to cluster and enable on wikis where it currently is a gadget|
|Resolved||matmarex||T95565 Import translations for SandboxLink from on-wiki gadgets|
(I did the ones that did not already have a translation, that did not look to have been indiscriminately copied from other wikis without translating, and that I could reliably extract in half an hour.)