Help and Settings interface is renewed, and several program's aspects were updated and improved, including: new keyboard shortcuts for archive creation (Shift+F5) and extraction (Ctrl+F5), merging of PeaExtractor code-base, and support for BCM and ZPAQ 7.05.

New 5.5.3 release comes with 7z 9.38 beta back-end and updated Context and Navigation menus. Address breadcrumb is enhanced with clickable icon for each node level, displaying directory list dropdown menu.

Release 5.5.2 introduces 7z 9.35 beta as new back-end, improving compression/extraction speed and enhancing support for many file formats. LZMA2 is the new default data compression algorithm for .7z archives.
Scanning (both inside and outside archives) was improved supporting on demand scan from more anti-virus / anti-malware products.

Release 5.5.1 improves identification of supported archive types and of know file formats that can be browsed as archives (i.e. compound MS Office files), and improves access to online resources and tutorials.
New "Update only" mode for Windows installer, updates application's file without modifying system integration (file associations, context and send to menu entries).
Full change log page: http://peazip.sourceforge.net/changelog.html

Release 5.5.0 improves file manager introducing advanced selection filters and new batch file rename functions: mass rename uppercase, lowercase, add string at fixed position, delete n chars at fixed position, replace/remove string optionally case sensitive, change file extension.
Image manager can now convert to TIFF, PPM, and XPM formats in addition to existing JPEG and PNG conversion, and were added pre-sets for conversion to JPEG with 90, 75, and 50 quality level, and to fit to 4K and 8K screen resolutions.
Archive manager features "Halt system after task completion" flag in Advanced compression/extraction options tab, and it was added option to remove single intermediate directory upon Extract to new folder operations.
Full change log page: http://peazip.sourceforge.net/changelog.html

Release 5.4.1 updates GUI design with new tabs, and improved menus for extraction and compression screens.
It was made simpler to re-use last output path, and to browse recent folders to drag items from system to application.
Better information is given when compressing and extracting multiple items at once.
Read more at change log page http://peazip.sourceforge.net/changelog.html

Release 5.4.0 brings a major refresh in GUI design, lighter, flatter, more focused on relevant information, and with improved navigation menus.
It is now featured option to queue original files to be removed after archival, and to remove original archives after extraction, with customizable deletion procedure (send to recycle in, quick delete, overwrite data with zero, secure delete.
ZPAQ backend was updated to 6.54.