For general maintenance of the console, consider cleaning the air vents periodically to prevent overheating and ensuring the hard drive has sufficient free space for system operations. The PS3HEN 4.92 Guide Has Arrived! Get It Here
: Standard system updates are compatible with all PS3 models, including Fat, Slim, and Super Slim units. Data Backup
Sony periodically releases mandatory updates to their Blu-ray key database (AACS keys) and minor security patches. Firmware 4.92 was a minor update, but it broke compatibility with older homebrew tools designed for 4.91 and 4.90.
Sony continues to support the PS3’s Blu-ray license database. Minor updates (4.93, 5.00?) are possible. The PS3 homebrew community (developers like Evilnat, Habib, Joonie ) has consistently released HFW variants within 48 hours of any Sony update.