I have just experienced a talk page displaying an old version. I looked to the history and when using a diff against the previous version, the content was correct. But normally, the page dislpayed as if the last change did not occur. So I suspect the problem is in the page cache.

This has already happened to me a few weeks ago. Then, I tried ?action=purge, which seemed to help. Today, the problematic page is at http://cs.wikipedia.org/wiki/Diskuse:Seznam_%C4%8Desk%C3%BDch_premi%C3%A9r%C... -- if you look at http://cs.wikipedia.org/w/wiki.phtml?title=Diskuse:Seznam_%C4%8Desk%C3%BDch_... you can see the last change, which does not display normally. (I don't know for how long this problem will persist, or if it is going to correct itself.)

(Note that I _did_ reload the page in the browser, so the problem is not on the client side, AFAICS.)

Mormegil