Both platforms update yearly, and it is genuinely common for something to break in the process — a permission dialog changes, an API gets deprecated, a review guideline tightens. Apps under a maintenance retainer get tested against the beta releases before the public rollout, so a compatibility issue gets caught and fixed before your users ever encounter it, rather than showing up as a wave of one-star reviews the week iOS 19 ships.
Both platforms update yearly, and it is genuinely common for something to break in the process — a permission dialog changes, an API gets deprecated, a review guideline tightens. Apps under a maintenance retainer get tested against the beta releases before the public rollout, so a compatibility issue gets caught and fixed before your users ever encounter it, rather than showing up as a wave of one-star reviews the week iOS 19 ships.