Native Instruments has released version 4.1.2 of Guitar Rig. The new version includes Mac OS X 64-bit support for Audio Units, VST, and standalone operation, as well as improved Guitar Rig 3 preset compatibility, and various fixes.
Native Instruments has released version 4.2.2 of Kontakt and Kontakt Player. The new version includes a new binary file format for improved performance, a zero-latency convolution engine, an updated master output section, new file import support (Akai MPC 5000, Alesis Fusion, Drumagog, Korg Triton, Roland Fantom, and Yamaha Motif), 64-bit VST support under Mac OS X and 64-bit Rex import support under OSX, as well as various enhancements and fixes.
Waves has released V8r3 of their Version 8 plug-ins. The new versions include various fixes.
Spectrasonics has released version 1.5 of Omnisphere. The new version includes a wide range of user-requested features, an updated factory patch library featureing 780 brand-new patches, and much more.