If you have an (specifically devices with the A7 to A11 chips), you can jailbreak any version of iOS 14 using checkra1n . This tool uses a hardware-level exploit that Apple cannot patch via software updates.
For , your jailbreak options depend entirely on your device's processor (chipset). Checkra1n (A7 – A11 Devices)
A Mac or Linux computer. Windows users can use a bootable Linux USB tool like odysseyn1x .