# Bitcoin Cash Upgrade 2022

On May 15th, 2022, Bitcoin Cash will undergo a technical upgrade to further expand its virtual machine (VM) contracting capabilities. bch-devsuite version < 1.3.0 have to perform the upgrade.

## Instructions

```bash
# Upgrade bch-devsuite to 1.3.0
git fetch origin
git checkout 1.3.0

# Activate python virtualenv
source ./venv/bin/activate

# Install new dependencies
pip install -r requirements.txt

# Stop the running system
./bch-devsuite stop

# Backup data directory (Optional)
sudo cp -r data databak

# Upgrade stacks
./bch-devsuite upgrade

# Restart the system
./bch-devsuite start

# [Smartbch] `./bch-devsuite start` may showing that your bch-node is not completely synced up
# and it cannot start smartbch, you have to wait until it synced up and manully start smartbch with command
./bch-devsuite start-smartbch
```


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