Peter has put out a X.Org Server 1.8.1 release candidate, which pulls in quite a number of bug-fix patches from the current X.Org Server master code-base that's being built-up for the 1.9 release. For distribution vendors, X.Org Server 1.8.1 now offers two directories for carrying distribution-specific patches and the other for custom, user-installed patches.
The rest of the 43 patches that make up the X.Org Server 1.8.1 RC1 release range from XQuartz fixes to GLX and XKB fixes. A second release candidate for X.Org Server 1.8.1 is planned for early May and after that the first (of a couple) point releases will make it out into the world.
The X.Org Server 1.8.1 release candidate announcement can be read on the X.Org mailing list.