Universal Audio has released a public beta version for Mac of UAD software 7.4.1 for UAD-2 PCI cards, UAD-2 Satellite, and Apollo and Apollo 16 audio interfaces. (A Windows 7 version is said to be on the way in early 2014.) The big news in this release is support for Pro Tools 11 64-bit AAX plug-in format.
Note that OS X 10.8 (Mountain Lion) with Pro Tools 11.0.2 or OS X 10.9 (Mavericks) with Pro Tools 11.0.3 are required for UAD version 7.4.1.
Also note, this is a public beta release. According to Universal Audio, it should be extremely stable. The fully qualified release will follow in early 2014, along with Windows 7 support.
For a full FAQ addressing Pro Tools 11 support, visit the Universal Audio support site.