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  Learn more
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  - GitHub Education
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  Learn more
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  - Architecture & optimization
    Discover how we deliver a performant and highly available experience across the GitHub platform.
  - Engineering principles
    Explore best practices for building software at scale with a majority remote team.
  - Infrastructure
    Get a glimpse at the technology underlying the world’s leading AI-powered developer platform.
  - Platform security
    Learn how we build security into everything we do across the developer lifecycle.
  - User experience
    Find out what goes into making GitHub the home for all developers.
- How we use GitHub to be more productive, collaborative, and secure
  Our engineering and security teams do some incredible work. Let’s take a look at how we use GitHub to be more productive, build collaboratively, and shift security left.
  Learn more
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    How to integrate security into the SDLC.
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    Ensuring your builds stay clean.
- GitHub recognized as a Leader in the Gartner® Magic Quadrant™ for AI Code Assistants
  Learn why Gartner positioned GitHub as a Leader for the second year in a row.
  Learn more
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  Keep up with what’s new and notable from inside GitHub.
  - Company news
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  - Research
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  - The library
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  Learn more
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    Explore open source games on GitHub.
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  Organizations worldwide are incorporating open source methodologies into the way they build and ship their own software.
  Learn more
Security
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  - Application security
    Application security, explained.
  - Supply chain security
    Demystifying supply chain security.
  - Vulnerability research
    Updates from the GitHub Security Lab.
  - Web application security
    Helpful tips on securing web applications.
- The enterprise guide to AI-powered DevSecOps
  Learn about core challenges in DevSecOps, and how you can start addressing them with AI and automation.
  Learn more

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Introducing split diffs

Diffs now come in two flavors, unified and split. Switch between them on pull request, commit, and compare pages using the toggle in the top right of the page. The…

Mark Otto·@mdo

September 3, 2014 | Updated December 6, 2019

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Split diff example

Diffs now come in two flavors, unified and split. Switch between them on pull request, commit, and compare pages using the toggle in the top right of the page. The mode you last used will become your preferred default.

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