We are currently planning to roll out a new version of the FlaggedRevs extension to all wikis on Tuesday, November 23 starting roughly 3:15pm PST (23:15 UTC). This is used for Pending Changes on en.wikipedia.org and Flagged Revisions on many other wikis (such as de.wikipedia.org and pl.wikipedia.org). The update sports a new reject button, some diff page load optimizations to help complicated diff pages load faster by displaying the diff prior to displaying the old revision, and many under-the-hood code improvements.

We have several test environments in place with FlaggedRevs/Pending Changes configured:

Please let us know if you have any problems.

Update 2010-11-23: this work is now complete.