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  - Architecture & optimization
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  - Engineering principles
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  - Infrastructure
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  - 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
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    How to integrate security into the SDLC.
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- 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.
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    Insights into the state of open source on GitHub.
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  - Research
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  Learn more
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  - Maintainers
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  Organizations worldwide are incorporating open source methodologies into the way they build and ship their own software.
  Learn more
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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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Change the base branch of a Pull Request

You can now change the base branch of an open pull request. After you’ve created a pull request, you can modify the base branch so that the changes in the…

Scott J. Goldman·@scottjg

August 15, 2016 | Updated January 4, 2019

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You can now change the base branch of an open pull request. After you’ve created a pull request, you can modify the base branch so that the changes in the pull request are compared against a different branch. By changing the base branch of your original pull request rather than opening a new one with the correct base branch, you’ll be able to keep valuable work and discussion.

base-switching

Learn more in our help guide.

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