LZFSE and ZSTD decompression code is BSD 3-clause: keep notices and do not use contributor names to endorse derived products
Catalog row in Vendor License Rules · Cited
- Kind
- Compliance
- Statement
- 7-Zip License for use and distribution (undated; as published on 2026-09-27): LZFSE decompression (derived from Apple Inc.'s LZFSE library) and ZSTD decompression (developed with Facebook's zstd decoder as reference) are under the BSD 3-clause licence, with copyright notices for Apple Inc., Facebook, Inc. and Igor Pavlov. Source redistributions must retain the notice; binary redistributions must reproduce it; and the names of the copyright holder and contributors may not be used to endorse or promote derived products without prior written permission.
- Applies when
- Redistributing 7z.dll or the LZFSE/ZSTD source files.
- Applies to
- LZFSE and ZSTD decompression code in 7z.dll (CPP/7zip/Compress/LzfseDecoder.cpp, C/ZstdDec.c).
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