to NVIDIA, new 188.8.131.52 PhysX SDK for Linux
(both 32- and 64-bit versions) has passed QA process and is available for beta testing
If you want to participate in beta program, you need to send your request to PhysXDevSupport@nvidia.com
Long awaited event actually, cause after old 2.8.1. SDK many developers have thought that PhysX SDK for Linux was completely abandoned.