Security bug fixes, new language, API new features
Released on December 19th, 2009md5sum
The list of major changes is described on Piwigo 2.0.0 release note
We recommend the automatic upgrade. If you're running version 2.2+, Piwigo will tell you which plugins may be not compatible with Piwigo 2.0 before upgrade.
If you're running Piwigo 2.0.x you can also download the 2.0.x_to_2.0.7.zip archive that contains all new and modified files. Once you have extracted the files, transfer them onto your web server with a FTP client over your Piwigo 2.0.x installation. No database upgrade is required.
If you are running a version older than 2.0 and do not want to use the automatic upgrade, then follow the manual upgrade.