Supabase Auth now supports Anonymous Sign-ins

Supabase Auth now supports anonymous sign-ins, allowing users to create temporary accounts without providing any credentials. This feature can be enabled from the dashboard and is supported by Javascript, Flutter, and Swift SDKs. Anonymous users are authenticated and persisted in the auth.users table, with their status identified by the 'is_anonymous' claim returned in the user's JWT. Restrictions can be applied to anonymous users using Row Level Security policies (RLS). Converting an anonymous user to a permanent user can be done by linking an email or phone identity or an OAuth identity. Supabase Auth is working on automatic clean-up options for inactive anonymous users and plans to release a linter later this month to check RLS policies for potential security risks.