The Galaxy S23 series received its first internal One UI 7 beta, as evident by new listings on Samsung internal firmware servers. The new beta builds S918BXXU7DXKM, S918BOXM7DXKM, and S918BXXU7DXKM will be tested by Samsung and ironed out for bugs before they proceed to open beta status.
As per the latest plans, One UI 7 should arrive in the first weeks of 2025 alongside the Galaxy S25 series. From there, Samsung will likely push the update to the S24 series, Z Fold6 and Z Flip6, followed by the S23 series.