Well, well... the PS4 4.01 Ksploit that was demonstrated yesterday by the Chinese Pavilion Safety Research Lab may be confirmed by an unlikely source- Sony themselves, as they just released a PlayStation 4 System Software 4.05 Update this morning which 'improves' the quality of the system performance! 
Download: PS4 Firmware 4.05 Update (US) / PS4 Firmware 4.05 Update (EU) / PS4 Firmware 4.05 Update (UK) / PS4 Firmware 4.05 Update (AU/NZ) / PS4 Firmware 4.05 Update (JP)
To quote from Sony's European Page: An update to the system software for PlayStation 4 systems was released on 25 October 2016. You can use this to update your system software to version 4.05.
Main features in system software update 4.05
THANKS to @Jeff for the holla in the PSXHAX.COM Shoutbox! 
Download: PS4 Firmware 4.05 Update (US) / PS4 Firmware 4.05 Update (EU) / PS4 Firmware 4.05 Update (UK) / PS4 Firmware 4.05 Update (AU/NZ) / PS4 Firmware 4.05 Update (JP)
To quote from Sony's European Page: An update to the system software for PlayStation 4 systems was released on 25 October 2016. You can use this to update your system software to version 4.05.
Main features in system software update 4.05
- This system software update improves the quality of the system performance.