1.5.4 (2026-05-01)
Features
- PWA: Web push notifications for new inbox mail (#233), with click-through to open the message
- Composer: Insert and edit tables in rich-text emails (#236)
- Mail: Configurable sub-addressing delimiter character (#239)
- i18n: Turkish localization
- i18n: Missing keys filled in across 15 locales
Fixes
- Mail: Set In-Reply-To and References headers on replies (#234)
- Mail: Persist htmlBody in drafts to preserve rich formatting (#236)
- Auth: Pin JMAP auth verification to the configured server URL (#237)
- Auth: Evict unrecoverable basic-auth accounts on reload
- Notifications: Scope new-mail notifications to genuine inbox deliveries
- Notifications: Extend PushVerification timeout and clean up leftover subscriptions
- Viewer: Smooth out body load to prevent flicker on first render
- Viewer: Prevent iframe flash when loading images or trusting the sender
- Viewer: Pad bare HTML emails like plain-text mails for consistent layout
- Viewer: Light-mode override now only affects body content
- Viewer: Detect
<style>tag when applying padding - Viewer: Drop iframe border-radius
- Calendar: Localize event start date in detail popover and event modal
- Dev: Include http protocol in connect-src for development mode CSP