Changes in version 1.6:

Decompression time has been reduced by 17%.

Support for .tbz extension has been added to lzdiff and lzgrep.

Man pages for lzdiff, lzgrep and lziprecover have been added to the
distribution.

Memory use has been reduced to 9x if the input file is smaller than
dictionary size limit.

Flush calls have been added to decompressor to allow partial recovery
of the uncompressed data when decompressing a corrupt file.

Lzdiff, lzgrep and lziprecover are now installed by default.

The dependence of "--test" on the existence of "/dev/null" has been
removed.