Major New Features
- Introducing the Solana Program Library! See https://spl.solana.com/ for documentation. Two SPL programs, spl-token and spl-memo, have been stabilized and are available for use on all Solana clusters. New RPC endpoints in support of these two programs are also available
- BigTable support for long-term transaction history storage for use by RPC
- Improvements to cross-program invocation (CPI) and program address derivation