Mark files as viewed
Mark files as viewed—and see if they’ve changed since you viewed them—to easily pick up where you left off.
Try as you might, you can’t always avoid huge pull requests. When you search through or need to review one, it can take hours—and before you know it you’ve forgotten where you left off. Now, there’s an easy way to keep track of your progress by marking files as viewed.
How it works
You can quickly check the progress of your review from the top of the pull request. This is where you’ll see how many files you’ve viewed and how many remain. You can mark each file as viewed, and they’ll automatically collapse, making code review quicker.

If a file is changed after you’ve viewed it, the status is removed and a “Changed since last view” badge appears, so you never miss a new change.

We hope this feature makes it easier for you to review large pull requests and keep track of your progress. Special thanks to Product Designer @califa and Product Engineer @nplasterer for their work on this feature.
Learn more about marking files as viewed
Tags:
Written by
Related posts
Pick your agent: Use Claude and Codex on Agent HQ
Claude by Anthropic and OpenAI Codex are now available in public preview on GitHub and VS Code with a Copilot Pro+ or Copilot Enterprise subscription. Here’s what you need to know and how to get started today.
What the fastest-growing tools reveal about how software is being built
What languages are growing fastest, and why? What about the projects that people are interested in the most? Where are new developers cutting their teeth? Let’s take a look at Octoverse data to find out.
Year recap and future goals for the GitHub Innovation Graph
Discover the latest trends and insights on public software development activity on GitHub with data from the Innovation Graph through Q3 2025.