Realtime Math v1.1.0 has been released with changes including:

• Added support for Windows ARM64
• Added support for VS2019, GCC9, clang7, and Xcode 11
• Added support for Intel FMA and ARM64 FMA
• Many optimizations, minor fixes, and cleanup

The quaternion arithmetic for NEON and SSE has been optimized, and in order to make sure not to introduce regressions, the Google Benchmark library has been integrated. RTM will be used in the upcoming Animation Compression Library release for the new scalar track compression API. The subsequent ACL release will remove all of its internal math code and switch everything to RTM. Preliminary tests show that it speeds up its compression by about 10%.

Check out the Github repo at https://github.com/nfrechette/rtm.