Don’t the software people check out updates before sending them out?
They do, but there are limits on how many combinations of computers, devices, and environments they can test, and still make the release date. And when it comes down to the wire, the release date usually wins.
In this case MS clearly screwed the pooch, cutting corners.
Maybe, they hired the Apple Quality Assurance folks.
“Dont the software people check out updates before sending them out?”
The customers serve that function. Sad.