Uses the same library version as the previous 1.0.0 release, but the 7-Zip wrapper now passes the chunk size to the Fast LZMA2 encoder while limiting it to 256 Mb. This enables 7-Zip multi-threaded decompression on dictionary sizes up to 256 Mb.

7-Zip 19.00 command line tool (7z.exe+7z.dll) with the Fast LZMA2 library as the default method, and a codec plugin DLL for standard 7-Zip 18.05 or later.

Changes in v1.0.0:

• Optimized the encoder, incorporating some of Igor Pavlov's improvements to 7-Zip 18.05, and some novel ones. The speed increase is about 5% - 8%.
• Moved detection of repeats from the single-threaded initialization stage to a later, multithreaded stage to increase speed.
• Tweaked the compression levels.
• Improved calculation of the match buffer size.
• Added dual buffer streaming, which allows one dictionary buffer to be filled by slow I/O while the other is compressing. This raises memory usage by one dictionary size, but it currently cannot be disabled.

7-Zip 18.03 beta with the Fast LZMA2 library as the default codec. Versions for 32-bit and 64-bit Windows. No installer.

7-Zip 18.01 beta with the Fast LZMA2 library as the default codec. Versions for 32-bit and 64-bit Windows. No installer.

7-Zip 18.01 beta with the Fast LZMA2 library as the default codec. Versions for 32-bit and 64-bit Windows. No installer.