Solana has improved its historical data retrieval process by developing a faster and more efficient archival storage system. The new API method, getTransactionsForAddress, significantly reduces the number of RPC calls needed and enhances query flexibility. This overhaul aims to streamline access to transaction data for developers and users alike.

oRPC combines RPC and OpenAPI to create APIs that are type-safe from client to server. It supports contract-first development and integrates with various frameworks and tools for enhanced observability and usability. The documentation provides clear examples for setting up servers, clients, and generating OpenAPI specifications.