CRYPTO NEWS for 7th October: ➤ Polymarket Begins Rolling Out Protocol V2, Rebuilding Its Smart Contract System to Support Multiple Market Types on One Exchange. ➤ CFTC Chairman Michael Selig Says Only Federally Regulated Crypto Exchanges Will Be Allowed to Offer Leverage Under Proposed U.S. Rules. ➤ Korean Retail Investors Lose an Estimated $1.7 Billion in Under Three Months on Leveraged Samsung and SK Hynix ETFs. ➤ World Liberty Financial Plans to Bring Its Payments Technology to Major Web2 Platforms Serving Billions of Users. ➤ Pudgy Penguins-Backed Ethereum Layer 2 Abstract to Shut Down on December 15 After Tens of Millions in Losses.