runtime: if we make a 1.6.3 release, backport the macOS Sierra patch #16354
Description
If we make a 1.6.3 release, it should include the fix for issue #16272 , so that 1.6.3 will work correctly on Sierra.
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If we make a 1.6.3 release, it should include the fix for issue #16272 , so that 1.6.3 will work correctly on Sierra.