This update was removed from the Message Board for a frankly bullshit reason AND for years old drama. DylanDude also removed the update, to the surprise of no one.

Original Mod: mb.srb2.org/threads/trip-the-sungazer.43906/ 

This beta seems to date back to November 16, 2023. I was allowed to join a private netgame test by Jon Baxter. The mod at this point seems to be in an early state, with Sonic sprites for place holders, but it her main gimmick was functionally there.