[mukundmr]

Apple's Open Source repository has the current version of Catalina's core. https://opensource.apple.com/release/macos-10145.html

Why is PureDarwin on an older version? Lack of volunteers? Too many hacks required?

[dschuler]

10.14.5 is Mojave, and we're still waiting for the latest 10.14.6 Mojave source. Their open source repo seems to be about 6 months behind at any time.

[jonathanstrange]

Isn't that a license violation?

[akvadrako]

It’s a BSD license, so they don’t need to release the source.

[jonathanstrange]

Ah, okay, that makes sense. Should have looked up the license before asking. I'll upvote your clarification.