[2.5.0] - 2021-06-05 Hi everyone! We have a new VOLK release! We are happy to announce VOLK v2.5.0! We want to thank all contributors. This release wouldn't have been possible without them. This release adds new kernel implementations and fixes. Some of these were longstanding PRs that could only be merged recently thanks to our switch from CLA to DCO. Announcements I would like to point out one upcoming change. After this release, we will rename our development branch to main as discussed in issue #461. I'd like to point the community to this VOLK relicensing GREP. This is an ongoing effort to relicense VOLK under LGPLv3. We're looking for people and organizations that are interested in leading this effort. Contributors Aang23 qwerty15@gmx.fr Carles Fernandez carles.fernandez@gmail.com Florian Ritterhoff ritterho@hm.edu Jam M. Hernandez Quiceno jamarck96@gmail.com, jam_quiceno@partech.com Jaroslav Škarvada jskarvad@redhat.com Johannes Demel demel@uni-bremen.de Magnus Lundmark magnus@skysense.io Michael Dickens michael.dickens@ettus.com Steven Behnke steven_behnke@me.com alesha72003 alesha72003@ya.ru dernasherbrezon rodionovamp@mail.ru rear1019 rear1019@posteo.de Changes Kernels volk_32f_stddev_and_mean_32f_x2: implemented Young and Cramer's algorithm volk_32fc_accumulator_s32fc: Add new kernel volk_16ic_x2_dot_prod_16ic_u_avx2: Fix Typo, was _axv2. Remove _mm256_zeroupper() calls Enforce consistent function prototypes 32fc_index_max: Improve speed of AVX2 version conv_k7_r2: Disable broken AVX2 code improve volk_8i_s32f_convert_32f for ARM NEON Calculate cos in AVX512F Calculate sin using AVX512F Compilers MSVC Fix MSVC builds GCC Fix segmentation fault when using GCC 8 MinGW add support and test for MinGW/MSYS2 The README has received several improvements Build Fix python version detection cmake: Check that 'distutils' is available c11: Remove pre-C11 preprocessor instructions CI Add more CI to GitHub Actions Remove redundant tests from TravisCI Add non-x86 GitHub Actions Update compiler names in CI Disable fail-fast CI Add more debug output to tests Contributing contributing: Add CONTRIBUTING.md and DCO.txt