Installation is simplified. You can create book albums in which you can control the page layout and generate a PDF to print the book. Memory usage has been lowered by splitting the code into small files that are loaded only if needed. The displayed size of thumbnails can be configured.
Some actions no longer require the page to be reloaded. A quota feature was added along with a 'su' feature for admins, completion when adding kewords, a slideshow mode, tooltips on pictures, and the ability for users to maintain a selection of pictures and perform group actions on them (move to album, change groups, etc.).
Fixes to make non-iso-8859-1 languages (all that's needed is the translation), an updated French translation, and the tarball is properly built from CVS so languages should install correctly.