Google has implemented tighter memory limits for applications in Android 17 to enhance device performance and prevent memory-intensive apps from monopolizing system resources. This OS-level enforcement is currently being rolled out on Pixel devices, with plans for broader adoption by various OEMs next year. The memory limits are tailored to each device's total RAM, ranging from 4GB to over 16GB. When an app exceeds its memory threshold, Android can compress its data or terminate the app if necessary. Developers must optimize their applications to stay within these limits, aiming to maintain a smooth user experience.