Comments on https://lichess.org/@/chessclassic_555/blog/stockfish-vs-stockfish-dev------/FIuneaDl
1. The official page to download development versions is https://github.com/official-stockfish/Stockfish/releases?q=prerelease%3Atrue
2. Even if it says +2.60 in the last commit, it does not actually mean that the engine got stronger by that much. Stockfish has not gained any significant amount of rating in the last 6 months. https://github.com/official-stockfish/Stockfish/wiki/Regression-Tests