Stalwart v0.12: A Unified Communication & Collaboration Platform

Stalwart v0.12 is here, transforming from a powerful mail server into a complete communication and collaboration platform. This release introduces native support for calendars, contacts, and file storage, eliminating the need for third-party integrations. Users can manage events, address books, and documents through any standards-compliant client. Improved spam filtering, enhanced performance optimizations for large deployments, and flexible cluster coordination round out the key features. Future releases will add CalDAV scheduling, event notifications, and JMAP support for an even smoother experience.