Microsoft did quietly release an updated build 6.3.8450 last month to fully support Windows 10 1709 and to fix some known issues. If you haven’t updated, do that sooner rather than later. Remember, there’s no MDT 2012 or 2013 anymore, it’s just MDT plus the build now.
In the release notes you’ll see something interesting:
I’m assuming that’s a fix for Lenovos not identifying as Laptops I identified last year.
And of course, Johan’s already got a guide on upgrading. https://deploymentresearch.com/Research/Post/660/A-Geeks-Guide-for-upgrading-to-MDT-8450