Following below is a list of components/extensions we believe currently fall under Wikimedia Product for triage (n.b., not all extensions will get active development support). Feel free to add discussion topics to the discussion page.
For skins with low utilization, in time there should be an engineering community discussion about practical approaches for EOL. Development on "legacy" skins (i.e., not Vector and not Blueprint) is generally inactive.
Extension:Collection is bugfix maintained by cscott, but Readers Web and Product Infrastructure have decommissioned some pieces and are taking on support.
Timeless skin is volunteer maintained. Product engineering will only make changes here when required by the platform (e.g. handling deprecations, security bugs).
Only security patches and changes required by the platform (e.g. deprecations) will be considered by Product engineering. For urgent non-security issues email wikitech-l.
Use of CologneBlue skin is actively discouraged for new users and hidden by default to users on WMF wikis. Only security patches and changes required by the platform (e.g. deprecations) will be considered by Product engineering.
Use of Modern skin is actively discouraged for new users and hidden by default to users on WMF wikis. Only security patches and changes required by the platform (e.g. deprecations) will be considered by Product engineering.
