Chase is targeting some Sapphire Preferred cardholders with an offer to earn 75,000 Ultimate Rewards points after upgrading to the Sapphire Reserve and spending $4,000 by December 15, 2026. You must upgrade by December 1. There is no direct link, so check your email to see if you're targeted. This is a good upgrade offer, but only if you've already had the card and otherwise wouldn't be eligible for the signup bonus due to 5/24. There's another reason Sapphire Preferred cardholders may want to consider upgrading as of today: the Preferred now transfers Chase points to World of Hyatt at a 4:3 ratio, while the Sapphire Reserve retains a 1:1 transfer ratio. That means a Hyatt stay requiring 30,000 points would cost 40,000 Chase points transferred from the Preferred versus just 30,000 from the Reserve. If Hyatt is one of your primary uses for Chase points, retaining that 1:1 transfer ratio could make upgrading more valuable beyond the 75,000-point bonus.