Sony has announced that a new firmware upgrade is now available to all PS3 owners.
The new firmware will take the PS3 up to v3.65 and is entirely optional.
“Earlier tonight we released an optional system software update (v3.65)
for PlayStation 3. This new firmware improves the operating stability of
some PS3 format software, and changes the XMB item SaveData Utility
(minis) to [SaveData Utility(minis/PSP)].”
Simply select system update from the menu in order to download it.