Sony’s (released March 2023) was a minor update to improve Blu-ray playback and system stability. It did not patch existing hardware-based exploits — most notably browser-based or PS2 classics entry points.
HEN does not allow permanent patches or debug settings like CFW. But for 95% of homebrew (emulators, RetroArch, game backups), HEN works perfectly.
While the PS3 4.90 bypass can provide users with a range of benefits, it's essential to be aware of the risks and precautions involved.
Open the MultiMan file manager and go to the root directory. Replace System Files: Navigate to /dev_hdd0/ on your console.
In other words, if you have bypassed 4.90, you are safe to stay on that firmware indefinitely.