Bink 2.7m from Insomniac leak, sorry I couldn't find more to do with Microsoft although some things you can encode for MS games after 2016

Using this for another purpose but I figured some of you might also like this

OG H4LT 2014 Xbox One SDK!

Now some from funnytorrent. This is from 2017...

2015

Then this

some tooling

then some awesome cat

Sorry, can't upload beyond 2GB so can't prove full 2020 XDK

Who wants (hopefully) 2023 XDK??

https://xboxoneresearch.github.io/ for great technical research