As many of you have undoubtedly noticed, 8.01 Final (build 7642) doesn't include the fix for rows 10 and 11 I previously wrote about. As we started the 8.01 Final release process the first time (with build 7624), several users reported display regressions (including, ironically, problems at some Mozilla sites). Due to these display regressions and other reported regressions, we decided to halt the release.
After we investigated the display regressions, we found that they all had a common source: the fix for rows 10 and 11 in the Acid2 test. We reviewed the fix, found that it was wrong, and reverted it. Implementing the correct fix was deemed too risky, thus 8.01 Final was released without the fix.
The rendering with this fix reverted is the same as in build 7597:
PS: I've added a category specifically for Acid2 posts on my site.
