U.S. Securities and Exchange Commission (SEC) procedures for crypto exchange-traded funds (ETFs) are changing, and the shift could speed up approvals for popular digital assets. Journalist Eleanor Terrett shared on X that the SEC has asked issuers of Litecoin (LTC), XRP, Solana (SOL), Cardano (ADA), and Dogecoin (DOGE) ETFs to withdraw their 19b-4 filings.