Welcome to the Graphics Experimental preview forum. There’s a lot of work going on behind the scenes at Unity to improve many areas around graphics both on the performance and on the functionality and usability side.
In this forum we will be posting new threads and linking you to experimental builds of these features currently in active development. Remember - they will be Experimental! So whilst we will base them off of a stable branch of Unity, we do not recommend that you use them in production. Please give us as much feedback as you are able to - and keep that feedback within each individual thread, we plan to post new threads and add new builds each time we have something new (or updated) to share.