HowTo updateChirpStack server

Hi Guys,

I need to upgrade a ChirpStack server I installed more than one year ago.
One of the rationals is that I need LoRaWAN 1.0.4 support (my “old” version has 1.0.3)

Is there an easy way to update to the latest version ?

Or should I install from scratch ?

Here are the versions I read:
$ chirpstack-network-server version
3.4.1
$ chirpstack-application-server version
3.5.1
$ chirpstack-gateway-bridge version
3.5.0

Thanks for your advices