The Wine development community has announced their latest bi-weekly snapshot in the 1.3 unstable series.
Wine 1.3.16 integrates a new version of the Mozilla Gecko engine that's based upon what's found in Firefox 4.0. This development release also has better support for Dwarf debugging information, improved handling of animated cursors, improvements to the GDI driver infrastructure, MSI fixes for .NET installers, and GdiPlus improvements. There's also various bug-fixes, as usual.
Read more and the list of bugs fixed at WineHQ.org