Log Message:
Welcome to Squashfs 4.4.  This is the first release in over 5 years, and
there are substantial improvements: reproducible builds, new compressors,
CVE fixes, security hardening and new options for Mksquashfs/Unsquashfs.

Please see the INSTALL file for instructions on installing the tools,
and the USAGE file for documentation on how to use the tools.

Summary of changes
---------------------------------------

1. Mksquashfs now generates reproducible images by default.  Mkfs time and
   file timestamps can also be specified.

2. Support for the Zstandard (ZSTD) compression algorithm has been added.

3. Pseudo files now support symbolic links.

4. CVE-2015-4645 and CVE-2015-4646 have been fixed.

5. Unsquashfs has been further hardened against corrupted filestems.

6. Unsquashfs is now more strict about error handling.

7. Miscellaneous new options and major bug fixes for Mksquashfs.

8. Miscellaneous new options and major bug fixes for Unsquashfs.

9. Squashfs-tools 4.4 is compatible with all earlier 4.x filesystems
   and releases.

For pkgsrc changes, now GitHub is now the main repository and using libtool