I have a very conservative rule: No updates for 60 to 120 days. This applies to PC, Mac, phones, tablets, routers, embedded devices, appliances, firmware in general. This has served me well for quite some time. I fully appreciate the time and effort put forth by those who have the time to deal wih the range of inevitable "oh shit's" that almost invariably come with every software release. Not something I have time for or interest in any more.

The only times I have violated this rule was when somthing was already so broken that a new version would still be considered an improvement even with warts.

Just one of those more conservative engineers.