My, perhaps incomplete, understanding is that you can just run the old thing if you can support PHP5. Otherwise you can run the eternal dev version, but you wil

My, perhaps incomplete, understanding is that you can just run the old thing if you can support PHP5. Otherwise you can run the eternal dev version, but you will have access to fewer plugins. Added: It appears there is some version 1.4.23 (the old thing) that will run on PHP7. I am currently running 1.4.22 on PHP5 under OpenBSD with no problems. The problem seems to be in figuring out what version to run.