Neon branches are copy-on-write clones of your database, created from any point in time. A new branch shares storage with its parent until it diverges. Common uses include per-PR preview environments, testing schema changes before promoting them, and point-in-time recovery.
You cannot delete a project's root branch. You also cannot delete a branch that has children; delete all children first.
See Branching with the Neon API for end-to-end examples, and Automate branching with GitHub Actions for CI/CD workflows using Neon's create, delete, reset, and schema diff actions.