A few things are slightly modified from what will eventually be Mainnet. Specifically:
- Developers need Testnet Network Tokens (TNT) to stake test validator nodes. You can get them via the Faucet but, before you do that, read the Validator Deployment Guide so you know how to use them.
- The Testnet Consensus Group will be sized dynamically based on the number of active testnet participants.
- The cooldown period - defined as the number of blocks after unstaking when the validator node doesn't earn rewards, and the stake is returned to the owner's wallet - is shortened to 180 blocks (or approximately 3 hours). On Mainnet this period will be 250,000 blocks (or approximately 5.8 months).