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by gbolcer 1683 days ago
I know one of the reasons for this (as an outsider). Over the years, the security patch codebase included other bugs that had been fixed in later code. Apple ios particularly when they are getting ready to launch a new iphone fork their code and try to keep security patches in sync, but by doing so "unfix" a lot of bugs. This has been an observed pattern for 6 or 7 major upgrades now. The bottom line, software used by tens of millions of people is hard.