Upgrade

Download and build upgrade binaries

cd $HOME
wget -O lavad https://github.com/lavanet/lava/releases/download/v4.1.0/lavad-v4.1.0-linux-amd64
chmod +x lavad
mv lavad $(which lavad)

Check the node version

lavad version --long | grep -e commit -e version

Result:
version: 4.1.0
commit: c57c9f807ef914e810276d5895fac7aa9b2a82ab

Restart the node

sudo systemctl restart lavad && sudo journalctl -fu lavad  -o cat