The FCU is now available. You can install it manually by going to the Microsoft Update site or wait for it to roll out to your system via the Windows Update network. From what is on the official Microsoft blogs, it seems that the HDR switching did not make the final cut (or it was snuck in there unofficially), so you can expect that to come in the seasonal updates that roll out next year, when HDR monitors hit the market after CES and Computex. There really isn't anything in this update that is an essential upgrade for anything HTPC or media related, so you might as well just wait for it to roll out to your systems via Windows Update. As always, make sure you are fully updated with drivers before you do install it.