Webkit is mostly LGPL. This is a bad example, because the codebase is derived from KDE.
mDNSResponder is Apache. This was released to drive industry acceptance of Bonjour/Zeroconf.
Darwin Streaming Server is APSL (the Darwin license) and patent encumbered. IIRC, there was talk of it being open sourced to drive H264 acceptance.
Darwin mostly does count as sharing code for the sake of being open, and to their credit Apple does keep updating it, but I struggle to think of other Apple releases for which this appears to be the most important consideration.
mDNSResponder is Apache. This was released to drive industry acceptance of Bonjour/Zeroconf.
Darwin Streaming Server is APSL (the Darwin license) and patent encumbered. IIRC, there was talk of it being open sourced to drive H264 acceptance.
Darwin mostly does count as sharing code for the sake of being open, and to their credit Apple does keep updating it, but I struggle to think of other Apple releases for which this appears to be the most important consideration.