[Solana Infrastructure Provider Helius Launches Beta Version of Historical Accounts API] According to TechFlow, on November 14th, Solana infrastructure provider Helius announced the launch of a beta version of its Historical Accounts API, supporting the querying of the status of accounts, liquidity pools, or wallets at historical points in time. This interface can retrieve the status at the end of a slot or after a single transaction, allowing users to backtest transactions, simulate transactions based on historical status, and view specific changes.