UPDATE Supercloud SET status = 'open alpha' WHERE product = 'D1';

This post announces the open alpha of D1, a global relational database built on Cloudflare Workers. It details how developers can interact with D1 through the dashboard and Wrangler CLI, including executing SQL files and managing migrations. It also highlights the integration of D1 with Workers and Pages Functions for building full-stack serverless applications. Additionally, it showcases community-contributed tooling for D1, such as d1-orm, workers-qb, d1-console, and a Kysely adapter, and outlines current limitations in testing, such as replication and JavaScript transaction support.