PS3 FW 3.56
Sony released a mandatory firmware update (v3.56) late on Jan 26, 2011. The official description of the patch is typically coy: “A new PS3 system software update, v3.56, will be released soon. This is a minor update that adds a security patch.” The hacking community so far suggests that the patch blocks certain homebrew applications (but not others, such as many emulators), and it prevents easy firmware downgrading methods. Thus it effectively blocks people with hacked boxes from going online, as this would require updating to the latest firmware. It doesn’t sound like anyone believes that this update will stymie hackers for long.