This is a stable release suitable for use on Mainnet Beta
Changes
- Gossip pull request optimizations
- Airdrop is now available via RPC
- Improved reliability of System account decoding
Updating to solana-program-test v1.6
See https://github.com/solana-labs/solana/wiki/Migrating-Rust-programs-from-v1.5-to-v1.6 for information on how to upgrade a Rust program from v1.5 to v1.6