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Use cow update to pull the latest code and restart the service in one step: 
cow update
The command runs the following automatically:
  1. Pull the latest code (git pull)
  2. Stop the running service
  3. Update Python dependencies
  4. Reinstall the CLI
  5. Start the service
If the Cow CLI is not installed, ./run.sh update performs the same operations.

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Manual upgrade

Run the following inside the project root: 
git pull
pip3 install -r requirements.txt
pip3 install -e .
Then restart the service: 
# Using Cow CLI (recommended)
cow restart

# Or using run.sh
./run.sh restart

# Or restart manually with nohup
kill $(ps -ef | grep app.py | grep -v grep | awk '{print $2}')
nohup python3 app.py & tail -f nohup.out

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Docker upgrade

Run the following in the directory containing docker-compose.yml: 
sudo docker compose pull
sudo docker compose up -d
Back up config.json before upgrading. For Docker deployments, mount the workspace directory as a volume to persist data across upgrades.