Most times. the bot is either down for a day or 2. at most.
even with PTR testing, blizzard can make changes before it goes live so, we as users of the bot just have to wait til it works if it goes down.
But expect the worse and be happy when its less than what you expected.
As for profiles. if new codes etc or whatever are needed, we have to wait til someone makes them.
When ROS was released. the bot was down like 3 days i think? or was it longer anyone? i forget.
Anyhow. new profiles for act 5 , adventure mode, and finally rifts, came slowly as it took some time for people to figure out all the new crap.
it was a period over several months as 1 or 2 profiles would be shared by others here and there as they were made.