FF_API_* defines may be placed below to indicate public API that will be dropped at a future version bump. The defines themselves are not part of the public API and may change, break or disappear at any time. Подробнее...

Граф связей класса Deprecation Guards:

FF_API_* defines may be placed below to indicate public API that will be dropped at a future version bump. The defines themselves are not part of the public API and may change, break or disappear at any time.

Заметки

, when bumping the major version it is recommended to manually disable each FF_API_* in its own commit instead of disabling them all at once through the bump. This improves the git bisect-ability of the change.