Here goes 2.6.8RC3, which is hopefully the last release candidate before the 2.6.8 release. The "big" thing in this release was the introduction of the IF/ELSE logic into the templates, which allowed elimination of many temporary vars inside the forum code, hopefully leading to some performance improvements.
Aside from this there were a bunch of small bug fixes in various bits of code.
Changes:
Added template support for IF/ELSE
Fixed locale handling for NNTP/Mailing List import scripts.
Fixed NNTP option storage.
Fixed hard-coded path in upgrade script.
Make MySQL 4.1.5 charset latin and not utf8 for better compatibility.
Fixed admlock warning in older PHPs.
Make find user pop-ups wider to prevent horizontal scroll.
Make sure moderators can input password for password protected forums.