No. I have been running my Mikroe modem with this update for 24 days. I output data every 10 mins. During this time, my sketch had to hard reset the modem 9 times. This is typical and not any different than the previous firmware update.
Hmmm, this is two updates ago... My guess is the problems they are having are related to the support of multiple CIDs. See the end of this post:
Before version 2.19:
AT+CGACT?
+CGACT: 1,1
After version 2.19:
AT+CGACT?
+CGACT: 1,1
+CGACT: 2,0
I don't think the arduino library knows how to handle this.