Using Cosmovisor streamlines upgrade preparation. Just build new binaries and move them to the Cosmovisor upgrades directory.
Download a specific upgrade binary file
wget -O zetacored https://github.com/zeta-chain/node/releases/download/v10.1.0/zetacored_testnet-linux-amd64
chmod +x zetacored
Get the binaries ready for Cosmovisor upgrades
mkdir -p $HOME/.zetacored/cosmovisor/upgrades/v10.1.0/bin
mv zetacored $HOME/.zetacored/cosmovisor/upgrades/v10.1.0/bin/
That's all! Cosmovisor will take care of the upgrade automatically once the specified block height is reached.