Since April 2025 we're seeing some growth in new active editors which is largely contributed by Commons and Wikidata. In the Active editors query we are restricting Developed wikis to the 8 wikis as defined here and Emerging = everything else, meaning the remaining 320+ wikipedias, Commons, Wikidata, wikisource, wikibooks etc.

We have heard concerns from consumers of health metrics that Commons & Wikidata are not Wikipedias and are not language-or-region-specific – and hence we shouldn't be comparing their content & editor growth to Wikipedia. And that it's misleading to label them as emerging.

A solution to this problem that the Movement Insights team agreed to would be to introduce a 3rd category of projects. ie
Developed WPs, Developed Sister Projects, Emerging Wikis