New Courier Inbox Launch

Aug 19, 2025

Courier has completely rebuilt Inbox to make in-app notifications faster, more flexible, and easier to integrate. This release introduces a new architecture, customizable UI, performance optimizations, and a simplified developer experience. All while maintaining compatibility with existing integrations.

What’s New

  1. UI Flexibility

    • Support for custom components: override, extend, or replace the UI entirely.

    • Options for pop-up or full-screen view.

    • Theming via CourierInboxTheme, eliminating the need for CSS overrides.

    • Dynamic layouts and support for custom notification data.

  2. Performance Improvements

    • Single WebSocket per tab to reduce resource usage.

    • Lazy-loaded messages, fetched only when needed.

    • Real-time sync across views, tabs, and channels.

  3. Simplified Integration

    • Installation is now a breeze: one line of HTML and a few lines of JS or React code.

    • Introduction of the new useCourier React hook for direct inbox state and events.

    • Consolidated into a single package: @trycourier/courier-react

Migration guide can be found here.

View docs

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