The Baklava Testnet is a non-production Testnet for the Validator community. It serves several purposes:
Operational excellence: It helps you get familiarized with the processes that will be used to create RC1, and verify the security and stability of your infrastructure with the new software.
Detecting vulnerabilities: It helps the Celo community discover any remaining bugs before RC1.
Future testnet: If all goes well, it will continue to function as a testnet, serving as a testing ground for changes after mainnet is launched.