**Wiktionaries: **
https://quarry.wmflabs.org/query/26601
Right now, 11 wiktionaries qualify (ar, de, el, fa, ja, jv, ko, mr, pt, si, yi).
**Wikisources: **
https://quarry.wmflabs.org/query/26813
Right now, 5 wikisources qualify.
**Wikipedias: **
https://quarry.wmflabs.org/query/26814
Right now, 20+ wikipedias qualify
**Wikibooks: **
This is right now covered by T192821. After May 9th, I'll include wikibooks here as well.
I plan to make this switch for these ~40 wikis on May 16th. If someone felt motivated to fix a few templates / pages in the linter categories with a lot of entries, we might be able to get more wikis transitioned over sooner. I have noticed that on all but the large wikis, fixing a few templates almost always fixes lots of pages and greatly brings down the linter counts.