[rhody401]

IMO 4.2.x is a fine and stable product. (I run a few large ones and they are rock solid reliable) 5.x isn't ready for prime time yet, IMO, and is very slow. and 3.x has a VERY dated look, and is slowly being ignored by developers since it is being phased out/retired. Developers are probably focusing on 4.x, 5.x and other competing products.

There was no reason to give up, imo, nor is there a flaw/cause for blame in 4.x the product. (other than it being virtually ignored in favor of 5.x development) It sounds more like you had a problem with some very old custom mods in the 3.x environment, which needed to be replaced/updated in the newer 4.x environment. If so, that's a legitimate problem - but this thread was probably not deserved. (it implies that 4.x is broken somehow)

As far as I recall, all of the recent exploits were found in all supported versions of the product. (3 4 5)