I had updated my SW Premium installation to SP 4.0 a month or more ago and not checked since, assuming that 5.0 would not be out until November or so.  Now I see that 4.0 is no longer listed in downloads but 4.1, "posted 08/21/2017," has replaced it.  From this quick reversal I have to assume that 4.0 had an important bug that is fixed in 4.1.  Anybody know what it is?

In general, is there a place where all SW releases (or at least the last few years worth) are listed along with the bugs that they supposedly fixed? -- John Willett