has a default compression mode (mid.cfg), supports compressing files in segments to separate blocks and extracting them as suggested in part 7 of the spec. Does not store paths by default. Does not extract to absolute paths by default. Some minor improvements. Sept. 7, 2009 (added zpaq.exe Sept. 8, 2009).
adds zpaqsfx 1.03, a stub for creating self extracting archives. No changes to zpaq or unzpaq. Sept. 14, 2009.
Can list and extract from self extracting archives without running them. Added progress meter. zpaqsfx.exe stub is slightly smaller. unzpaq unchanged. Sept. 18, 2009.
Removes built in x and p preprocessors and makes them separate programs called from config files with compile time postprocessor testing. Adds if-else-endif and do-while to ZPAQL. Many small changes. Sept. 28, 2009.
adds "ta" to append locater tags to allow ZPAQ streams to be detected when embedded in arbitrary data. Sept. 29, 2009.
zpaqsfx 1.06 self extracting archive stub is now separate from the ZPAQ distribution. Updated Sept. 29, 2009, posted Oct. 26, 2009. (Replaced by zpsfx in libzpaq 2.01)
adds config file parameters and fixes some bugs. From now on the specification and reference decoder are not included unless they change. Oct. 2, 2009.
generates optimized code that runs about twice as fast on systems with a C++ compiler installed. Oct. 14, 2009.
unzpaq108.cpp removes undefined behavior of ZPAQL shifts larger than 31 bits on non x86 hardware. Oct. 14, 2009.
Linux port and some cosmetic bug fixes. Oct. 21, 2009.
bug fix for Linux/g++ 4.4.1, Dec. 28, 2009.
zpipe v1.00, a simple streaming compressor, Sept. 30, 2009. Linux patch added Jan. 18, 2010.
fast.cfg written Apr. 26, 2010. Now part of libzpaq distribution.
zp v1.00 simple ZPAQ compatible archiver with 3 optimized compression levels, Apr. 26, 2010.
libzpaq 0.01, Sept. 27, 2010.
libzpaq 0.02, Sept. 28, 2010.
zpipe 2.00 updated to use libzpaq 0.02, Sept. 28, 2010.
libzpaq 1.00, Sept. 29, 2010. Package includes libzpaq, ZPAQ specification, reference decoder, zp, zpipe, and fast, mid, max config files.
libzpaq 1.01, Oct. 14, 2010. Updates libzpaq interface to use inheritance instead of templates, requiring changes to zp and zpipe. Now compiles faster.
zpaqmake->makezpaq zpaqsfx->zpsfx