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- Update to version 3.1.0
  Build and dependency updates
  * cmake: Link to cpu_features only in BUILD_INTERFACE.
  * cmake: Do not install cpu_features with volk.
  * Use CpuFeatures target.
  * Use cpu_features on RISC-V platforms.
  * cpu_features: Update submodule pointer.
  * Add UBSAN to ASAN builds.
  New kernel API
  * Use pointers to pass in s32fc arguments.
  * The old API is deprecated but will be available for the
    foreseeable future.
  Updated kernels
  * Remove unused ORC code.
  * Prefer NEON kernels over ORC.
  * Require all kernels to have a generic implementation.
  * Remove redundant a_generic kernels.
  * Remove ORC kernels that use sqrtf.
  * reverse: Rename dword_shuffle to generic.
  * volk_32f_s32f_convert_8i: code style
  * volk_32fc_x2_divide_32fc: add documentation about numerical
    accuracy.
  * kernel: Refactor 32f_s32f_multiply_32f kernel.
  * kernel: Refactor 32f_x2_subtract_32f kernel.
  * convert 32f->32i: fix compiler warnings about loss of int
    precision.
  * 64u_ byteswape: remove buggy Neonv8 protokernel.
  * 64u_ byteswape: remove buggy Neon protokernel.
  * Remove broken volk_16i_max_star_16i_neon protokernel.
  * Fix truncate-toward-zero distortion.

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- Update to version 3.0.0
  * License switch to LGPLv3+
  * Fix build for 32 bit arm with neon
  * Add experimental support for MIPS and RISC-V

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- Update to version 2.5.0
  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
  Fixes:
  * Fix segmentation fault when using GCC 8
  * Fix python version detection
  * cmake: Check that 'distutils' is available
  * c11: Remove pre-C11 preprocessor instructions

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- Update to version 2.4.1
  Build
  * cpu_features CMake option
  * Add cpu_features to static library build.
  * Use static liborc-0.4 library for static library build.
  * cmake: Detect if cpu_features submodule is present.
  Install
  * Check for lib64 versus lib and set LIB_SUFFIX accordingly.
- Switch back to the release github tarballs
- Verify source signature

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- Update to version 2.4.0
  Documentation
  * Update README to be more verbose and to improve usefulness.
  CMake
  * Enable to not install volk_modtool.
  * Remove "find_package_handle_standard_args" warning.
  cpu_features
  * Use cpu_features v0.6.0 as a private submodule to detect
    available CPU features.
  * Fix incorrect feature detection for newer AVX versions.
  * Circumvent platform specific feature detection.
  * Enable more architecture specific kernels on more platforms.
  Kernels
  * Disable slow and broken SSE4.1 kernel in
    volk_32fc_x2_dot_prod_32fc.
  * Adjust min/max for 32f_s32f_convert_8i kernel
  * Use INT8_* instead of CHAR_*
- Upstream tarball does not have the cpu_features included so use
  a service file to generate the tarball.
- Add patch:
  * volk-fix-cpu_features-compilation-error.patch

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- Update to version 2.3.0
  * Better reproducible builds
  * CMake improvements
    + ORC is removed from the public interface where it was never
      supposed to be.
    + CMake fixes for better usability
  * Enforce C/C++ coding style via clang-format
  * Kernel fixes
    + Add puppet for `power_spectral_density` kernel
    + Treat the `mod_range` puppet as a puppet for correct use
      with `volk_profile`
    + Fix `index_max` kernels
    + Fix `rotator`. We hope that we finally found the root cause
      of the issue.
  * Kernel optimizations
    + Updated log10 calcs to use faster log2 approach
    + Optimize `complexmultiplyconjugate`
  * New kernels
    + accurate exp kernel is finally merged after years
    + Add 32f_s32f_add_32f kernel to perform vector + scalar float
      operation

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- Update to version 2.2.1
  Changes
  * Fix loop bound in AVX rotator
  * Fix out-of-bounds read in AVX2 square dist kernel
  * Fix length checks in AVX2 index max kernels
  * includes: rearrange attributes to simplify macros Whitespace
  * kernels: fix usage in header comments
- Update to version 2.2.0
  Highlights
  * Dropped Python 2 build support
    + Removed Python six module dependency
  * Use C11 aligned_alloc whenever possible
  * Add VOLK version in volk_version.h (included in volk.h)
  * Improved CMake code
  * Improved code with lots of refactoring and performance tweaks

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- Update to version 2.1.0
  * The AVX FMA rotator bug is fixed
  * VOLK offers `volk::vector<>` for C++ to follow RAII
  * Move towards modern dependencies
      - CMake 3.8
      - Prefer Python3
          - We will drop Python2 support in a future release!
      - Use C++17 `std::filesystem`
          - This enables VOLK to be built without Boost if
            available!
  * more stable CI
  * lots of bugfixes
  * more optimized kernels, especially more NEON versions

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