So I can just install it like that? I don't need to wipe everything first in order to update it?It depends of your device and TWRP version:
- I believe (but I don't know if it still true) all @Nebrassy's TWRP versions don't support automatic-update feature.
- All very recent devices (with one TWRP's version yet) also don't support automatic-update feature, it requires a new TWRP or another custom recovery release...
In this case you have to manually install the new ROM in TWRP:
- In TWRP, go in "Install" menu then find the downloaded ROM => Check in " /sdcard " or " /data/media/0 " directory. Reboot your device after ROM installation.