2010/11/9 Aryeh Gregor Simetrical+wikilist@gmail.com:
"Extensions are branched along with MediaWiki, so trunk extensions only have to support current trunk MediaWiki. However, per #General principles, don't break support for old MediaWiki versions unless the compatibility code is causing actual quantifiable problems, because it's nice if users can get the extra features or bug fixes of trunk extensions even if they're still using old MediaWiki. Some extensions' maintainers deliberately maintain compatibility with old MediaWiki versions, and their wishes should be respected in all cases."
Sounds good.
Roan Kattouw (Catrope)