https://projects.blender.org/blender/blender/pulls/107827 I too remember this branch, and having downloaded it. As mentioned here: https://blenderartists.org/t/where-to-get-blender-3-6-or-4-0-alpha-with-mesh-to-sdf-volume-nodes/1527446/9Where someone links to a branch you can compile, if you're up for it.
Hey, Thanks for the mentioning @"Eric Chadwick" From what i know the addon was never part of the official Blender addons that ships with the software. It is at least not inlcuded in Blender 3 and 4. So i think you simply had it installed all the time and migrated it with the click at copy previous settings when a new…