There’s a new system update available for PlayStation 3 owners, and unlike most system updates it’s actually optional. The update will “improves stability during the use of some features”, and can be downloaded right away. Its description is vague, but we’re not sure who would refuse a patch that makes your system work better.
As it’s not mandatory and it doesn’t add a great deal of things, the update will only take a few MB out of your HDD. It may also be required if you want to update your console to a newer, more important patch in the future.