There are about 145 git commands that you can type.
The 'include if' directive in git config allows you to set up a third place to look for configuration values, in between the local and global config files.
The 'git blame' command shows the commit history for each line in a file, indicating who last modified each line.
The new option in git branch command is called 'D-column'.
The 'force with lease' option in git checks to see what it thought the reference was and if it doesn't match, it won't push it. It's a safe way to force push when you've rebased or amended your commits.
As of a couple of years ago, OpenSSH released a feature that allows signing of arbitrary data, which has been incorporated in git. This allows users to sign their git commits using SSH instead of gpg.
The difference is 4 seconds for a blame from Linux on a full checkout and 45 seconds for a blob blame.
Sparse checkout in Git is a feature that allows you to clone a repository with no checkout, and then specify the directories you want to work with. This can make working with large repositories much easier, as it allows you to only check out the data you need.
The 'allowed merge types' feature in GitHub allows you to specify the type of merge commits that are allowed in your repository. This can be useful for enforcing a consistent workflow among your team members.