In a blog post from Garry Newman, founder of Facepunch, the future plans for Rust's Linux version were plainly laid out. Going forward, the Linux version is going into maintenance mode and will no longer maintain parity with the Windows and Mac versions of the game.
- The Linux version won't receive new features
- The Linux version will have its own dedicated server and won't be able to join Win/Mac servers
- The Linux version will get maintenance patches
This honestly feels like a long time coming. Even Garry admits that their treatment of the Linux platform was not as good as it should have been. Especially for customers that paid just as much for the game as Windows and Mac players and expect the same level of quality.
Perhaps the worst part of news is near the end of the post, "Don't make Linux versions of any future games because we can't/won't properly support it". It seems that Facepunch was soured by their experience and community response. It's always a shame to lose a developer.