Open Source

The vast majority of businesses today rely on open source, making it an essential part of the software industry. And millions of those projects are on GitHub. Learn about documentation, maintainers, gaming Git, licenses, and how open source positively impacts the world. You can also find information in our documentation about how to build and foster sustainable open source communities.

Git

Working with submodules

Eventually, any interesting software project will come to depend on another project, library, or framework. Git provides submodules to help with this. Submodules allow you to include or embed one…

An illustration of two octocats repairing a robot.

Git

Counting Objects

The Systems Team at GitHub works to solve complex bugs and performance bottlenecks at the lowest levels of our infrastructure. Over the past two years we’ve undertaken a major project…

Git

Git 2.5, including multiple worktrees and triangular workflows

The open source Git project has just released Git 2.5. Here’s our take on its most useful new features. git worktree: one Git repository with multiple working trees It’s not…

Git

How to undo (almost) anything with Git

One of the most useful features of any version control system is the ability to “undo” your mistakes. In Git, “undo” can mean many slightly different things.

Git

Git 2.4 — atomic pushes, push to deploy, and more

Git’s 10-year birthday celebrations notwithstanding, the Git community has been busy preparing another major new release of the Git command-line utility. Release 2.4.0 is weighted towards cleanups, bug fixes, and…

Gaming

Game Off III – Everyone’s a Winner

Last month, we challenged you to fork a game repository and do something awesome with it based on our Tron-inspired theme, “the game has changed“. Below are the submissions. They’re…

Open Source

Open source license usage on GitHub.com

Open source simply isn’t open source without a proper license. Unless you’ve explicitly told others that they can modify and reuse your work, you’ve only showed others your code; you…

Gaming

The Game Off Returns!

The GitHub Game Off, our very own game jam is returning next week! We’ve had some great games submitted in previous years and can’t wait to see what you come…

Git

Git 2.3 has been released

The Git developers have just released a major new version of the Git command-line utility, Git 2.3.0. As usual, this release contains many improvements, performance enhancements, and bug fixes. Full…

Gaming

GitHub Game Off II Winners

We announced our second annual game jam, the GitHub Game Off II, back in October. Today, we’re revealing the winners and giving you the chance to play and fork these…

Gaming

GitHub Game Off II

We ran our very first game jam last year and had so much fun, we decided to throw another one! The Challenge You have the entire month of November to…

Open Source

Choosing an Open Source License

It’s easy to get caught up in code. Sharing your code isn’t everything, though: it’s also important to tell people how they can use that code. Choosing an open source…