EdgeDB 1.0 Alpha 3 "Proxima Centauri" introduces significant advancements to the open-source relational database built on PostgreSQL, emphasizing ease of use and improved performance. The release showcases a new 6-week release cadence for minor updates, allowing for more frequent and incremental improvements. It integrates Rust alongside Python to enhance efficiency, with the query tokenizer and command-line tools now utilizing Rust for better performance and memory safety. The update also introduces new features like the interactive tutorial for testing EdgeDB without installation and improved syntax for updating linked sets in queries, such as the new += and -= operators. Efforts to support schema migrations have advanced with an internal shift to autogenerated EdgeQL for schema introspection. The team encourages community engagement through various platforms and provides additional educational content through a new YouTube channel.