PeaZip 2.8 was released today, implementing a more user-friendly archive/file browser, improved job scheduler, improved navigation menu (which is available also in archiving/extraction interfaces), archive conversion features and many more updates.

downloads: http://peazip.sourceforge.net/index.html
change log: http://peazip.sourceforge.net/changelog.html
screenshots: https://sourceforge.net/project/screenshots.php?group_id=178996

PeaZip is an open source file and archive manager: cross platform, available as portable and installable software for 32 and 64 bit Windows (9x, 2k, XP, Vista) and Linux (PeaZip is a desktop neutral application), supports 98 archive types.
PeaZip allows to apply powerful multiple search filters to archive's content; create, convert and extract multiple archives at once; create self-extracting archives; export job definition as command line; save archive's layouts; bookmark archives and folders; scan and open with custom applications compressed and uncompressed files etc...
Other features: strong encryption, robust file copy, split/join files (file span), secure data deletion, compare, checksum and hash files, system benchmark, generate random passwords and keyfiles.