knock on wood- mine seems at least as stable if not more stable than before. There do appear to be significant changes that some programs are way way way more unstable on the device than before. (in my case Goodlink was totally fubared on the phone- but actually the phone handled it much better than in the past- the phone never choked- just the program)

So I'd try a hard reset and slowly reinstall yourstuff. Leaving some time between installs to see if you can find a culprit.

If you dont have anything installed then certainly try a hard reset.

Several of us have noticed that phone service seems to be much more sporadic (my working theory is it jumps around between cells way more now than it did before- sometimes to the detriment of a good signal). But i dont recall reading anyone having text message problems like that.

In fact- stinks that you are reporting that we have to go into the resend app instead of just being able to hit resend on the threaded view.