A new set of features for app performance monitoring has been introduced, focusing on performance alerting and screen loading metrics. The alerting system is designed for both iOS and Android and provides instant notifications through Slack when performance dips below a user-defined threshold, allowing developers to address issues promptly. This alerting covers overall app performance, network slowdowns, and failures, offering customizable rules for specific app versions and conditions. Additionally, a new screen loading metric has been added, giving developers the ability to monitor content loading times and screen transitions, enhancing visibility into app performance at various stages. The new Screen Loading page provides detailed insights, including Apdex scores and loading stages, which are accessible via the APM navbar and homepage.