Sorry to post here, but where is beta 4?
IF we download it from github, would it be a newer beta 3 that we downloaded 9 months ago?
We tagged the current development stage on GitHub as "Beta 4" just in a temporarily way. It's not an official release. We might change it from Beta 4 to RC1 when the release comes.
And yes, if you download the files from GitHub, it'll be much newer from the SMF 2.1 Beta 3 we released before.