Everything we know about the PS4 Jailbreak

Currently, the highest firmware version that can be jailbroken on the PS4 is 9.00. This is possible through a combination of usermode and kernel exploits.

Yes, you can play backups available for the PS4, You can download games here.

No, downgrading the PS4 firmware is not currently possible.

No, accessing online features with a jailbroken PS4 is not supported and could lead to potential bans or other penalties.

Many sites may claim to offer a full-fledged Jailbreak for the latest PS4 firmware, but these are often deceptive, aiming to generate revenue through surveys or ads. It's advisable to be wary of such claims, as installing their offerings could lead to security risks.