Released on July 8th, 2016md5sum
The list of major changes is described on Piwigo 2.8.0 release note
There is no suitable CSPRNG
http redirect for forbidden guest access
[Batch Manager] edit author/title may use the placeholder
download link fails on non picture files
[template] Missing password.tpl into smartpocket theme
We recommend the automatic upgrade. If you're running version 2.2+, Piwigo will tell you which plugins may be not compatible with Piwigo 2.8 before upgrade.
If you're running Piwigo 2.8.x you can also download the 2.8.x_to_2.8.2.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 2.8.x installation. No database upgrade is required.
If you are running a version older than 2.8 and do not want to use the automatic upgrade, then follow the manual upgrade.