The new release is currently testing with the brave and fearless Microsoft Insider Program. Yes, the same team of beta testers who didn’t spot it the first time.
Alright, to be fair to them, they did spot it, back in Spring, but it was decided by you-know-who that it wasn’t a serious issue. More on that later.
The borkage, which affected ‘less than one-hundredth of one per cent’ of users, according to Microsoft, was causing users to lose their files as the new installation ramraided over the top.