PS3 Firmware 4.81 was released more than a year ago by Sony, and most of us expected it to be the last firmware ever for the PS3. But a few hours ago, Sony released firmware 4.82, and this does not feel like a coincidence.
Last week, an exploit for 4.81, codenamed PS3Xploit, was announced by developer esc0rtd3w. The announce was quickly followed by a leak which forced the hackers to release things a bit faster than expected. A few days ago, they released an IDPS Dumper for PS3 4.81, and promised more things for 4.81 owners, including a Homebrew Enabler (HEN) for all PS3 models, as well as software downgraders for compatible consoles.
Although nobody has confirmed it yet, it is very likely that firmware 4.82 patches, at least partially, some of the exploits used by the PS3Xploit team. It is recommended, if you want to ultimately hack your PS3, that you do not upgrade to firmware 4.82, and instead stay on 4.81 for now.
At the time of this writing, you can still download the update file for Firmware 4.81 on Sony’s site. You should download that file just in case, if your console is running below 4.81 and you want to update to 4.81 in the future.