Reviewing large pull requests can be a daunting task, often leading to overlooked details and extended review times. The sheer volume of changes can make it difficult to form a clear understanding of the PR's impact and identify critical issues. To tackle this problem, we've introduced the Topics feature, designed to streamline and structure the review process.

Topics automatically organizes changes within a PR into meaningful groups, making it easier to navigate and evaluate the code. Each topic provides a focused view, allowing you to quickly grasp the scope of changes and their implications. This feature highlights impacted APIs, summarizes any CI checks that failed specifically for the topic's content, and identifies developers who have recently committed code to the files involved.

By breaking down complex PRs into manageable sections, Topics offers a clear mental model and structured workflow, helping you review code more effectively and with greater confidence. This enhancement ensures that even the most substantial PRs can be reviewed with clarity and efficiency, leading to faster merges and higher-quality code.