Thread:Project:Support desk/After updating to 1.24alpha (9db61c9), from 1.19 collapseable elements don't work/reply

Hi!

I am not exactly sure, what you mean with "collapsable elements". However, there was an extension (not the skin) called Vector, which made sections in the sidebar collapsable. This extension is no longer used in MediaWiki 1.24; remove it, if you have it installed.