Neon is a fully managed serverless Postgres service that allows users to create isolated copies of their database, referred to as "branches", using a process called "branching". This feature enables users to programmatically restore their data to a previous state by creating a branch from a specific point in time. Neon retains a data history in the form of Write-Ahead-Log (WAL) records, allowing for restoration to a previous point in time within a configurable seven-day window. Users can create branches using the Neon CLI or console, and restore them to a previous state while keeping the same compute endpoint by assigning it to the newly created branch and setting it as the primary branch.