28/8  2021  3.2        Robustness against lots of false magic bytes within
                       compressed data as the number of retries now might be
                       bigger than the number of jobs.

16/7  2021  3.1        Improved handling of false magic bytes within compressed
                       data. This often happens at parallel decompression of
                       a compressed archive or disk image file containing
                       files compressed with the same algorithm.

8/4   2020  3.0        Removed predefined support for gzip parallel
                       decompresion as this might fail without showing from
                       gzip return value.

9/3   2017  2.2        Added experimental support for parallel decompression

11/11 2017  2.1        Bugfix: Fixed copy-paste error in code which caused
                       writing outside allocated buffer when output data from
                       called program was bigger than input data. This could
                       happen also at compression if data is already
                       compressed. In theory bugs like this could cause more
                       or less random behavior. In practice this bug has caused
                       corrupted backup archives. Any users of version 2.0
                       should upgrade to version 2.1 to avoid this bug!

15/10 2017  2.0        Added support for increasing number of jobs with SIGUSR2
                       and decreasing number of jobs with SIGUSR1.

9/10  2017  1.2        Might be able to recover if sub process fails even if
                       some data has been read out from the sub process.

31/1  2015  1.1        Freeing unused RAM in child processes.

14/12 2014  1.0        First stable version. No changes since 0.9.2beta which
                       has been tested for some months without any problems
                       found.
24/8  2014  0.9.2beta  Bugfix: taking care of short reads which could cause
                       random and non optimal compression performance when
                       blocks sent to compression not allways were as big as
                       intended.
24/7  2014  0.9beta    First public release

