I was just going to update one of my seldom used servers to VirtualBox to 5.0.10, when I noticed Santa brought 5.0.12 as an early Christmas present yesterday! 🙂
VirtualBox 5.0.12 is a maintenance release with a bunch of fixes and additions. The downloads and changelog are in the usual places!
So far I’ve installed it on Windows 7 (work PC), OS X : El C[r]apitan (Laptop) and Oracle Linux 6 (a home server) and all the guest additions I’ve updated so far as happy. 🙂