Testnet is a testing environment for dApp developers and partners. It is running the latest unstable version of the node software release, but not the nightly build. We do rolling update of the testnet a few times a week. There is not 100% guarantee that transaction on testnet will be persisted across the updates. The testnet is running with two shards and 150 nodes per shard.
1 hour earning of validator nodes
4 hour earning of validator nodes