3 ms·Wasn’t it in OS X before that?by MBCook 2y agoWasn’t it in OS X before that?plorkyeran 2y agoDocumentation claims 10.6, which is the equivalent OS X version (both are the 2009 releases).lilyball 2y agoThat's actually just for the block-based APIs like notify_register_dispatch(), the other notify APIs have no availability annotations at all.lukeh 2y agoManual page says Mac OS X 10.3.