Sony released a new system firmware version 5.01 for PS4. This update is optional which you can update or not in you like. If you want to hack your console in the future, it is better to stay at a lower firmware version.
Main features of version 5.01:
This system software update improves system performance.
If you want to update your PS4 console to v5.01, power on your PS4 and o to [Settings] > [System Software Update] and click ‘Next’ and then ‘Update’.