From the original announcement:

What's new in this release:

• Beginnings of ddraw overlay support.
• Many more crypt32 functions.
• Improved support for tables in Richedit.
• Support for NETWM window maximization.
• Many installer fixes.
• Tweaks for better PulseAudio support.
• Various bug fixes.

The source is available now. Binary packages are in the process of being built, and will appear soon at their respective download locations.

For those of you who don't know Wine is a compatibility layer for running Windows programs. It is not an emulator (the name says it all Wine Is Not an Emulator ) but a free implementation of Windows's Api on Unix.