Update

Delete Previous Data and Download Latest Version

sudo systemctl stop tangle
rm -r .tangle; mkdir -p $HOME/.tangle
rm -r /usr/bin/tangle
wget -O tangle https://github.com/webb-tools/tangle/releases/download/v0.6.1/tangle-testnet-linux-amd64 && chmod +x tangle
sudo mv tangle /usr/bin/

All releases version can be checked HERE

Update service

edit YourName

Change all YourName to your name

tangle.service

sudo tee /etc/systemd/system/tangle.service > /dev/null << EOF
[Unit]
Description=Tangle Validator Node
After=network-online.target
StartLimitIntervalSec=0
[Service]
User=$USER
Restart=always
RestartSec=3
ExecStart=/usr/bin/tangle \
  --base-path $HOME/.tangle/data/validator/YourName \
  --name YourName \
  --chain tangle-testnet \
  --auto-insert-keys \
  --node-key-file "/home/YourName/node-key" \
  --port 30333 \
  --telemetry-url "wss://telemetry.polkadot.io/submit/ 0" \
  --validator \
  --no-mdns
[Install]
WantedBy=multi-user.target
EOF

Restart

sudo systemctl daemon-reload
sudo systemctl restart tangle

Check logs

sudo journalctl -u tangle -f --no-hostname -o cat

After Sync, back to THIS STEP