The Mixed Reality Forums here are no longer being used or maintained.
There are a few other places we would like to direct you to for support, both from Microsoft and from the community.
The first way we want to connect with you is our mixed reality developer program, which you can sign up for at https://aka.ms/IWantMR.
For technical questions, please use Stack Overflow, and tag your questions using either hololens or windows-mixed-reality.
If you want to join in discussions, please do so in the HoloDevelopers Slack, which you can join by going to https://aka.ms/holodevelopers, or in our Microsoft Tech Communities forums at https://techcommunity.microsoft.com/t5/mixed-reality/ct-p/MicrosoftMixedReality.
And always feel free to hit us up on Twitter @MxdRealityDev.
Change to Mixed Reality Toolkit Dev_Unity_2017.2 branch today
Today @stephenhodgson and I are going to be merging the Main branch of the HTK into the Dev_Unity_2017.2 branch. There is a pretty wide gap of things that have gone into the Main Branch that have not gone into the Dev branch, and we need to close that gap to move forward. This may cause breakage in the Dev branch. If you need a stable version of the Dev_Unity_2017.2 branch, you can get it here - https://github.com/Microsoft/MixedRealityToolkit-Unity/releases - marked as 2017.2 Pre-release.
What will be super helpful is for you guys to maybe make copies of your projects that use the Dev_Unity_2017.2 branch, or even Master, and test out all the parts of your projects using it. Let us know where it's broken, what pain points there were to upgrading, etc. File the issues on Github so we can track them. If you have any questions, feel free to reach out to me.