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I assumed it was part of the migration plan to Apple silicon. Rosetta 2 makes x86 apps work on Apple silicon, but I had assumed that Apple could only really get 64-bit x86 apps working smoothly and that’s why they removed 32-bit support a few years earlier.

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Rosetta supports 32 bit apps. I've read conjecture on here that the removal of 32 bit was due to unresolvable pointer security issues on their 32 bit SDK, which was different than how its done with their 64 bit system.

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