VirtualBox 5.1 released - but Vagrant 1.8.4 doesn't support it

UPDATE 7/19/2016: Vagrant 1.8.5 has been released with VirtualBox 5.1 support and other fixes (changelog).


VirtualBox 5.1 was released on Tuesday with several improvements/fixes that *I’m* eager to try out given I use a Windows Host with Linux Guests:

• The new APIC and I/O APIC improvements, which I hope will continue to increase network performance.
• Use of x2APIC for Linux guests and many other related fixes
• No longer relies on DKMS for Linux guest kernel module rebuilding – I haven’t had the opportunity yet to dig into exactly what this entails, but I am excited by the possibility as at least in RHEL/CentOS, DKMS not available by default, although it is in EPEL.
• The new NVMHCI-compatible storage controller

One major note though, Vagrant 1.8.4 does NOT support VirtualBox 5.1.  The good news is this should be coming soon as support was committed to the Vagrant master source on Wednesday. Let’s hope for the next Vagrant release soon!