@ ChuckOne: is this what you mean by "solved by verification, code review etc. etc." when the network can't determine which chain is "best"?
Maybe, you can elaborate bit more.
Do you refer to promoting the new release? I remember Bitcoin having also several releases:
https://bitcoin.org/en/version-historyI do not see what the problem therein is. Updates might break something or they might cause a change in the protocol at which a hard fork will occur.
That need to be brought to people's attention and then they need to decide for themselves what to do, reviewing the code, verify checkpoints. etc. etc.