Major miles and points updates including American Express Business Platinum's significant 35% Pay with Points bonus restriction starting September 18th. Capital One opens their impressive 24/7 flagship lounge at JFK airport with round-the-clock access for Venture cardholders. United Airlines overhauls their PlusPoints system with more flexibility but higher costs for Premier elite members. We also cover Chase Sapphire Reserve's refresh with a new $500 hotel credit and $795 annual fee, plus strategies for maximizing Marriott Bonvoy redemptions despite recent devaluations.