> On Aug 4, 2015, at 8:08 AM, Yulia Bensman <ybens...@interwise.com> wrote: > > My question is: what is the maximal supported TLS version in CFNetwork > library in various Mac OS X (starting from 10.7)?
According to TN2287, TLS 1.2 support was first added in iOS 5 (2011?), so it would have appeared in OS X in the next version released after that. You could look up the exact release dates, but I _think_ that implies OS X 10.8. SecureTransport.h defines a constant kTLSProtocol12, but it doesn’t have an availability annotation showing what OS versions it’s applicable to. —Jens
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