Big release for Waterfox. There are some huge performance gains from 27.0.1:

A complete, 100% ICC build! Yay! (As opposed to various VC and ICC build).
Profile-Guided optimisation is back, which brings nice performance improvements.
If you're running an Intel CPU, support for AVX2, SSE4.2, SSE4.1 and SSSE3 if your processor supports these instruction sets. AMD users, at the moment you only get up to SSE3 support
Using Mozilla's built in memory allocator as opposed to jemalloc, otherwise crashes occur.
Finally change the About dialogue to talk about Waterfox and to link to the Waterfox website (links not active yet)

Fixes since 32.0:

32.0.1 - Stability issues for computers with multiple graphics cards
32.0.1 - Mixed content icon may be incorrectly displayed instead of lock icon for SSL sites
32.0.1 - WebRTC: setRemoteDescription() silently fails if no success callback is specified
32.0.3: New security fixes can be found here
What's new in Waterfox 32.0.3?

Fixed issue where Firefox logo would overwrite Waterfox logo (old profiles may still have this issue)