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  Learn more
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  - Application development
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  - Career growth
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  - GitHub Education
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  - Programming languages & frameworks
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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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  - DevSecOps
    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
    An inside look at news and product updates from GitHub.
  - Product
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  - Octoverse
    Insights into the state of open source on GitHub.
  - Policy
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  - Research
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  - The library
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  Learn more
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  - Maintainers
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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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  Stay up to date on everything security.
  - 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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Scheduled Maintenance Tonight at 22:00 PST

We will be performing scheduled maintenance tonight from 22:00 to 22:20 PST. During this window GitHub and all Git access will be entirely unavailable for a short period while we…

Tom Preston-Werner·@mojombo

January 24, 2011 | Updated January 4, 2019

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We will be performing scheduled maintenance tonight from 22:00 to 22:20 PST. During this window GitHub and all Git access will be entirely unavailable for a short period while we perform MySQL and Redis maintenance. GitHub Pages and GitHub Jobs will be unaffected.

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