# Join the Public Testnet
See the testnet repo for information on the latest testnet, including the correct version of Gaia to use and details about the genesis file.
You need to install gaia before you go further
# Starting a New Node
NOTE: If you ran a full node on a previous testnet, please skip to Upgrading From Previous Testnet.
To start a new node, the mainnet instructions apply:
The only difference is the SDK version and genesis file. See the testnet repo for information on testnets, including the correct version of the Cosmos-SDK to use and details about the genesis file.
# Upgrading Your Node
These instructions are for full nodes that have ran on previous versions of and would like to upgrade to the latest testnet.
# Reset Data
First, remove the outdated files and reset the data.
Your node is now in a pristine state while keeping the original
config.toml. If you had any sentry nodes or full nodes setup before,
your node will still try to connect to them, but may fail if they haven't also
Make sure that every node has a unique
priv_validator.json. Do not copy the
priv_validator.json from an old node to multiple new nodes. Running two nodes with the same
priv_validator.json will cause you to double sign.
# Software Upgrade
Now it is time to upgrade the software:
NOTE: If you have issues at this step, please check that you have the latest stable version of GO installed.
Note we use
master here since it contains the latest stable release.
See the testnet repo for details on which version is needed for which testnet, and the Gaia release page for details on each release.
Your full node has been cleanly upgraded!