Since SF deletes all but the latest update posts, this is how to check change logs.

[Stan001]

Since SF deletes all but the latest update posts in the forum, best to bookmark or favorite this > StreamFab Updates

Of course, this HAS NOW BEEN VERIFIED as to older versions of SF:

I can confirm that all SF versions < 6247 are no longer usable



This was already the case in the past, where old versions (old SF API)
were deactivated - but never so many at once - see also here