Missing Logger Symbol on macOS 15

Jeongki Park:

The SDK marks Logger.isEnabled(type:) as available since macOS 11, but macOS 15.6.1’s libswiftos doesn’t have it.

[…]

For four days [my app] quit at launch on macOS 15, and I didn’t know.

[…]

OSLog has its own isEnabled(type:), which goes to the C function os_log_type_enabled, there since macOS 10.12. So I keep an OSLog handle, make the Logger from it, and ask the handle[…]

Previously:

• Ending the Golden Era for Backward-Compatible Apps

Mac macOS 15 Sequoia os_log Programming Swift Programming Language

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