For eZ Publish 5.0 there is a release announcement on share.ez.no, and there is a known issues page for 5.0.
eZ Publish 5.x | For eZ Platform & eZ Studio topics see Technical manual and User manual, for eZ Publish 4.x and Legacy topics see eZ Publish legacy
For eZ Publish 5.0 there is a release announcement on share.ez.no, and there is a known issues page for 5.0.