About a year ago, Apple faced heavy criticism when it disclosed that firmware updates were affecting the performance of older-generation iPhones, citing it as a power management feature that would compensate for the degradation of batteries over time. On Wednesday, the UK Competition and Markets Authority launched an investigation following Apple's admittance of the practice. The result of the investigation is a ruling that Apple must explicitly disclose when a future firmware update would adjust the processor speeds. The UK offered a statement about its conclusion. To ensure compliance...
Source: https://www.gsmarena.com/apple_legally_required_by_the_uk_to_notify_users_of_performance_changes_with_updates-news-37178.php