Hyatt has announced its partnership with American Airlines will be ending on Feb. 28, 2027 (last day to link accounts will be Nov. 15th, 2026). Hyatt has also announced a new partnership with Delta airlines, although details regarding that partnership are sparse at the moment with Hyatt stating:
Details regarding enrollment, eligibility, earning opportunities, and launch experiences will be shared in the months ahead.
Hard to know if this is a good change or not without knowing the specifics of the Delta partnership.

