The optional ones are always strange to me.
http://blog.us.playstation.com/2012...&utm_campaign=Feed:+PSBlog+(PlayStation.Blog)
If you plan on making a sandwich for dinner, why not update?
http://blog.us.playstation.com/2012...&utm_campaign=Feed:+PSBlog+(PlayStation.Blog)
Later tonight well be releasing an optional system software update (v4.11) for PlayStation 3. This minor firmware improves certain aspects of system software, and is not mandatory to connect to PSN.
Again, this update is optional in the US and Canada, and can be downloaded by selecting System Update from the Setting column of the XMB.
If you plan on making a sandwich for dinner, why not update?