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macOS in its history has not really followed semantic versioning. 10.6 dropped support for running on PowerPC CPUs, and 10.7 dropped support for running PowerPC
by paulirwin 6y ago
macOS in its history has not really followed semantic versioning. 10.6 dropped support for running on PowerPC CPUs, and 10.7 dropped support for running PowerPC apps with Rosetta. 10.15 dropped support for 32-bit apps. Those were pretty significant breaking changes.