Newer firmware includes improved syscall handlers, security patches, and better compatibility with later game releases. Some games (e.g., The Last of Us , Beyond: Two Souls ) check for minimum firmware version inside their PARAM.SFO and refuse to boot on older versions.
The RPCS3 firmware refers to the system software that runs on the PlayStation 3 console. It's a critical component that enables the console to function correctly, providing a range of services such as: rpcs3 firmware
Yes.
Updating the RPCS3 firmware is similar to installing it: Newer firmware includes improved syscall handlers