EdgeDB has released Alpha 3 "Proxima Centauri", an advanced open-source relational database based on PostgreSQL. The new release includes a new interactive tutorial that allows users to test the software without installation, improved ergonomics for UPDATE statements with the addition of += and -= operators, and foundational work for improved schema migrations. Additionally, EdgeDB has transitioned to a 6-week release cadence for minor versions and started incorporating Rust code into its functionality.