Whether you are playing on a high-end gaming rig or a Steam Deck, the nightlies deliver the definitive PS2 experience in 2025 and beyond. The only "stable" thing about version 1.6.0 is how outdated it has become.
That era is officially over.
Do not use PCSX2 1.6.0. It is effectively legacy software at this point. The builds represent years of accumulated improvements, a modern UI, massive performance gains, and features that were once only dreams for PS2 emulation. pcsx2 1.7.0 nightly