# BitCanna Cosmos Security update from v0.44.1 to v0.44.2

A new release of Cosmos SDK v.0.44.2 is available since yesterday. This version contains [a new security update](https://forum.cosmos.network/t/cosmos-sdk-security-advisory-jackfruit/5319).

*Nodes can update their software independently of each other (no coordinated chain restart necessary), but should do so as soon as they are able.*

# BitCanna nodes and validators update procedure:

This guide contains instructions for both bcnad and Cosmovisor. Make sure to choose the right one.

1. Download the new version.

    cd $HOME
    rm -f bcnad #deletes if exist
    wget -nc https://github.com/BitCannaGlobal/bcna/releases/download/v1.2/bcnad
    chmod +x bcnad
    ./bcnad version
       <compare this output> 1.2

    sha256sum bcnad 
      <compare this output> 1a06f246aa398eba89bb72d9a11a91b3a3c990892e9ce0d4f2c1601cf6d4c820  bcnad

2. Stop the daemon (choose 2.1 or 2.2)

2.1. BCNA daemon

    sudo service bcnad stop

2.2. Cosmovisor daemon.

    sudo service cosmovisor stop

3. Move new binary and replace old (choose 3.1 or 3.2)

3.1. BCNAD daemon

    sudo mv ./bcnad $(which bcnad)

3.2. Cosmovisor daemon

    mv ./bcnad $HOME/.bcna/cosmovisor/current/bin/

4. Start the daemon again (choose 4.1 or 4.2)

4.1. BCNA daemon

    sudo service bcnad start

Check the logs:

    sudo journalctl -u bcnad -f

4.2. Cosmovisor daemon

    sudo service cosmovisor start

Check the logs:

    sudo journalctl -u cosmovisor -f