A few weeks ago I e-mailed Tim Cook and asked him when Apple was going to be more transparent with source code releases, and I don’t know if my e-mail helped or not (joke) but anyway, Apple did something new today. Yup. They released the open source bits used in OS X 10.10 Yosemite a bit sooner than usual. It is right there now so we don’t have to wait a couple more months, but don’t go looking for the lzvn_encode() and lzvn_decode() routines. Nope. You won’t find it. It’s not there. Just like we expected, otherwise I would not have spent so much time on it myself. Duh!
Edit
I have been sending e-mails with the same kind of requests to Apple reps for years, and most of the time I did not get a reply, but this time I actually got one saying: “We’re working on it“.
Pike's Universum 
Oh wow!
Tim cook actually replied!
I have no idea if that was Tim Cook personally, probably not, but at least I got a reply.