# Unity version control for Git users | **GIT**| **Unity VC**| **Explanation**| |:--|:--|:--| | To Commit| To Check in| To Check in is to submit changes to the repo.| | Commit| Changeset| Each new change on the history of the repo, grouping several individual file and directory changes.| | Master| Main| When you create a repo in Unity VC, there's always an "empty" branch. Unity VC calls it Main.| | To checkout | To update| Downloading content to the workspace (working copy). This is called "update" because in Unity VC, "checkout" has a different meaning.| || Checkout| When you checkout a file in Unity VC, you're saying you are going to modify the file.| || Exclusive checkout or lock | This is locking a file so nobody can touch it. It’s only useful for non-mergeable files, like binaries, images, or art in a video game.| | Rebase|| Unity VC handles branching differently than Git. In Unity VC, a rebase is just a merge operation.| | Repository | Repository| Where the entire history of the project is stored. | Working copy | Workspace| In Git, you have the working copy and the repository in the exact location. You have a working copy and a .git hidden dir with the repository. In Unity VC, this is slightly different since repositories and workspaces are separated. You can have several workspaces working with the same local repository.