What is the newest, stable OS for an iPhone 3g?

rbbr_chckn

New member
I have an 8 Gig iPhone 3g (Model A1241, order # MB046LL/A). It is currently running iOS 3.1.3 which I heard a long time ago was the best for this iPhone. All references to newer iOS says wait until iOS 4.1, but I can't find any other references. It will take iOS 4.21- but again I can't find any news on stability.

So what is the best iOS for an old iPhone 3g?
 
Top