- ABI change: 64-bit target values, more room for expansion
- Add CompressBlocksNot, CompressNot, Lt128Upper, Min/Max128Upper, TruncateTo
- Add HWY_SVE2_128 target
- Sort speedups especially for 128-bit
- Documentation clarifications
- Faster NEON CountTrue/FindFirstTrue/AllFalse/AllTrue
- Improved SVE codegen
- Fix u16x8 ConcatEven/Odd, SSSE3 i64 Lt
- MSVC 2017 workarounds
- Support for runtime dispatch on Arm/GCC/Linux
The 1.0 release signals an increased focus on backwards compatibility.
Applications using documented functionality will remain compatible with future updates that have the same major version number.