I don’t know where to write this information:
Chromaprint is available officially in a new version v1.5 since 15.04.2020.
Maybe you can include the fpcalc.exe
in a next version of Picard?
Changelog on Github
- Added support for fpcalc -raw -signed, which helps with easier PostgreSQL integration
- Added support for using libavresample instead of libswresample
- Fixed possible crash in chromaprint_decode_fingerprint
- Fixed unit tests on big endian CPUs
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It has already been updated on GitHub 
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New chromaprint version 1.6.0 (2025-08-28) is available for download:
Changelog v1.6.0: Releases · acoustid/chromaprint · GitHub
- Added support for FFmpeg 8.0
- Added chromaprint_decode_fingerprint_header function
- Added missing chromaprint_get_algorithm function implementation
- Optimized simhash calculation and fingerprint decoding
- Improved fingerprint compression performance by pre-allocating vector storage
- CMake improvements: updated minimum version to 3.10, use GNUInstallDirs, install config targets
- Build Linux ARM64 binaries
- Allow build to exclude internal avresample
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