Yes. We have a custom build application that requires newer libs that CentOS 7 naively provides as well as some kernel hooks not found in the 3.x kernel. I've

Yes. We have a custom build application that requires newer libs that CentOS 7 naively provides as well as some kernel hooks not found in the 3.x kernel. I've not encountered any problems so far, but we do fairly aggressive full stack testing before we deploy OS updates. Linux has gotten a lot more stable across the board, with Fedora being no exception. I wouldn't recommend running it in production it in a way where you couldn't just destroy the VM and rebuild (like a database server).