VCS
IntelliJ IDEA has support for Git and a number of other version control systems.
Commit Changes (tip)
Commit your changes to VCS
Creating a Project from GitHub (tutorial)
How you can create an IntelliJ IDEA project from your code in GitHub
Enable Git Staging (tip)
Git Staging is an alternative approach to IntelliJ IDEA Changelists
Git Commits in Search Everywhere (tip)
View your git commits in the Search Everywhere dialog
Manage VCS Changelists in IntelliJ IDEA (tip)
Group and commit changes related to certain tasks
Resolve Merge Conflicts in VCS (tip)
Use VCS options in IntelliJ IDEA to resolve merge conflicts visually in the editor
Sharing your Project on GitHub (tutorial)
How you can share a local project to GitHub
Use a lightweight inspection profile on commit (tip)
Fully customise the checks you must perform before you commit your changes to version control