It seems like Hilton tried to sneak this one in, since it’s only listed on page six of the Hilton American Express benefits update brochure:
Redeem for Less as a Cardmember
As a valued Hilton HHonors Cardmember, you can receive four Hilton HHonors reward nights at any Category 5 hotel for 125,000 HHonors points or at any Category 6 hotel for 145,000 HHonors points. This special savings of 15,000 points per category is an exclusive benefit to Hilton HHonors Cardmembers. To redeem for this reward, please call 1-800-920-5649 and provide Reward Codes AXON5 (Category 5) or AXON6 (Category 6).
Up until now AXON awards were 125,000 points, which was a 35,000 point discount for Category 6 hotels. Unfortunately now it’s only a savings of 15,000 points. Bummer.