Android 12L is a major update aimed at large screen devices such as tablets and foldables. It introduces several user interface tweaks, new features, behavior changes, and API updates designed to take advantage of the wider screens of these devices. The update includes Material You for large screen devices, which personalizes, adapts, and makes Android more accessible. The redesign efforts focus on larger screens, allowing them to show more content on screen. Apps such as Files, Gmail, Google, and Messages have been updated to split their view on larger screens. The new taskbar feature provides a simple way for users to switch between recently launched applications or drag an app's icon to either half of the screen to quickly launch that app in split-screen mode. Android 12L also introduces support for activity embedding, which enables showing multiple activities at once side by side, and audio spatialization with dynamic head tracking, providing a more immersive audio experience. The update includes several behavior changes, such as improved letterboxing, customizable letterboxing effects, and re-enable volume adjustment for remote media sessions. Android 12L also introduces new APIs, including Activity embedding for two-pane browsing and Audio spatialization with dynamic head tracking. Additionally, the update undeprecates some deprecated APIs, such as Environment.getExternalStorageDirectory() and MediaStore.MediaColumns.DATA. The update is designed to revitalize Android for large screen devices, which has matured significantly in the last decade.