Gerard Meijssen schrieb:
Hoi, Some extensions are backwards compatible however and some are not. Given that there are plenty of people and orangisations using stable versions of MediaWiki, how do they know and how are they to know ? Thanks, GerardM
Never rely on it. Assume extensions are compatible with the branch they are in. If they are not, that's a bug. If they inside the branch but with no other version, that's fine. If the work with all earlier versions, that's better.
-- daniel