What is a commit in Git?

A commit in Git is a snapshot of the state of your repository at a specific point in time.

It contains:

• A reference to the previous commit(s).
• A snapshot of all files and directories in your project (the tree).
• Metadata:
  • Author and their email.
  • Date and time of creation.
  • Commit message describing the changes.

Each commit has a unique identifier (SHA-1 hash), which allows referencing it and tracking the change history.

Commits are the building blocks of your project's history in Git.