Sony has released a PS3 firmware update that bumps the system software to version 4.85. This update was released silently and there was no mention of it on the official website.
Sony has also updated the PS Vita firmware recently which was followed by an update to the PS3 firmware. They have been doing these small updates that they claim improve system stability and performance, but it is mostly an attempt to fix any exploits that are discovered for the hardware.
The latest PS3 firmware update is version 4.85 and the official PlayStation USA website doesn’t appear to reference it. The changelog is available to view on the regional PlayStation websites. It simply lists the following information which is pretty generic.
This is similar to the previous firmware update that was released for the PlayStation 3. It is also a comparable story to the recent PS Vita firmware update. Both Sony and Nintendo have released firmware updates to address exploits that are present on their consoles including Nintendo Wii U, Nintendo 3DS, Nintendo Switch, PS3, PS Vita, and PS4.
Despite the update, it appears that those who have a homebrew console can still spoof their firmware to go online. This could lead to a ban from Sony though, so if you want to avoid updating and go online, it is best to wait for a solution.