Upgrade
Automatic upgrade node
source <(curl -s https://raw.githubusercontent.com/ERNcrypto/polkadot/main/newupgrade.sh)
Manual upgrade node
sudo systemctl stop polkadot.service
cd polkadot-sdk
sudo git fetch
git checkout polkadot-v1.18.8
cargo build --release
sudo systemctl restart polkadot.service
sudo journalctl -u polkadot.service -f
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