Parallel XZ is a compression utility that takes advantage of running LZMA compression of different parts of an input file on multiple cores and processors simultaneously. Its primary goal is to utilize all resources to speed up compression time with minimal possible influence on compression ratio.

The etckeeper program is a tool to let /etc be stored in a git, mercurial, brz or darcs repository. It hooks into APT to automatically commit changes made to /etc during package upgrades. It tracks file metadata that version control systems do not normally support, but that is important for /etc, such as the permissions of /etc/shadow. It's quite modular and configurable, while also being simple to use if you understand the basics of working with version control.

This plugin will add a new tab to the side pane in the Gedit text editor which shows symbols (functions, classes, variables, etc.) for the active document. Clicking a symbol in the list will jump to the line on which that symbol is defined.

Back In Time is a framework for rsync and cron for the purpose of taking snapshots and backups of specified folders. It minimizes disk space use by taking a snapshot only if the directory has been changed, and hard links for unmodified files if it has. The user can schedule regular backups using cron.

This package is provided to ease the updating of modsecurity to the new package name. You may safely remove it.

libXmu provides a set of miscellaneous utility convenience functions for X libraries to use. libXmuu is a lighter-weight version that does not depend on libXt or libXext; for more information, see libxmuu1.