OpenBLAS 0.3.26 features much faster GESV performance for small problem sizes, pulls in various fixes from the reference LAPACK code, various build system improvements, and a number of architecture-specific optimizations and fixes.
On the x86_64 side, OpenBLAS 0.3.26 fixes the CASUM computation on Skylake-X and newer targets in cases where AVX-512 is not supported, other AVX-512 related fixes, works around a problem in the pre-AVX kernel for GEMv, and speeds up thread management on Microsoft Windows.
OpenBLAS 0.3.26 also fixes several issues on ARM64 (AArch64), provides some new optimizations for Neoverse-V1 and other performance tuning, support for the Apple M1 and newer targets for DYNAMIC_ARCH builds, and more. There are also various IBM POWER optimizations and new/improved optimized kernels for almost all BLAS functions on LoongArch64.
Downloads and more details on the OpenBLAS 0.3.26 release via GitHub .