Monthly summary for 2026-01 (repository: thunderbird/thunderbird-android). Focused on stability/maintenance of dependencies rather than new features. Key actions included a targeted rollback of unstable dependencies to known-good versions to ensure build reliability and compatibility across the Android Thunderbird app.

December 2025: Focused on stabilizing the Thunderbird Android app by reverting Mozilla Android Components to a proven baseline (145.0.1). This mitigated risks from the newer 145.0.2 release and preserved a reliable foundation for ongoing feature work and compatibility with existing Android APIs.

September 2025 — ThunderBird Android: Stabilized logging infrastructure by restoring Timber-based logging configuration in legacy Android code. Reverted the decoupling of DebugLogConfigurator from Timber and reintegrated direct Timber logging to fix logging behavior. Result: more reliable logs, faster diagnosis, and improved readiness for production incidents.

May 2025 monthly summary for thunderbird/thunderbird-android focusing on stability and UX alignment. No new features delivered this month; primary work involved reverting a bug fix to restore expected folder click behavior in the navigation drawer, reinforcing consistent user interactions.

April 2025 monthly summary for thunderbird/thunderbird-android focused on stability and UI reliability. The main delivery was a targeted bug fix that restored Glide image loading by bringing back the K9AppGlideModule, ensuring consistent image rendering across the Android app and aligning behavior with user expectations and other Thunderbird clients. The work mitigates user-facing regressions and supports a smooth release cycle.

January 2025: Launched Open Source Licensing and Documentation Initialization for thunderbird/thunderbird-ios. Implemented MPL-2.0 license and a comprehensive README establishing thunderbird-ios as an open-source email app for iOS, laying the groundwork for community contributions, governance, and compliance. The work provides a clear licensing framework and project overview, enabling external collaboration and faster onboarding for contributors.