If you are looking for the absolute latest version, I can check the or the "Addons & More" forum for any beta V6 releases or Generations level packs designed for Modern Sonic. Modern Sonic V5.12 2021-10-13 - SRB2 Message Board
When players search for "extra quality" versions of this mod, they are usually looking for a specific, refined experience that distinguishes itself from the base game: srb2 modern sonic v6 download extra quality
The current official and stable version of the Modern Sonic character mod for Sonic Robo Blast 2 (SRB2) If you are looking for the absolute latest
Features a modern-style boost meter that can be refilled by collecting rings or defeating enemies. Homing Attack: srb2 modern sonic v6 download extra quality
Step 2 — Verify compatibility