Release Notes

Cypht is a lightweight Open Source webmail aggregator, written in PHP and JavaScript. It supports IMAP/SMTP, JMAP and EWS, allowing you to centralize multiple email accounts in a single modern and modular interface.
  • Versioning: Semantic versioning approach learn more.
  • Stability: 1.4.x branch recommended for critical environments.
  • Evolution: 2.x branch introduces EWS, Sieve filters, smooth navigation.
Below is a comprehensive overview of recent Cypht releases with their key features and improvements.
  • New features: scheduled messages view, brute force login lockout, MTA-STS/TLS-RPT support, contacts page redesign, flagged message search across folders, auto BCC exclusion option.
  • Bug fixes: EWS folder manipulation, SCRAM authentication, SPA navigation inline message clicks, advanced search mobile CSS, message read-on-open setting, mailbox cache clearing.
  • Improvements: php-ews upgraded to >=0.11.2, Sieve filter unit tests, PHP 7.x deprecation removals.
  • New features: scheduled messages view, brute force login lockout, MTA-STS/TLS-RPT support, contacts page redesign, flagged message search across folders, auto BCC exclusion option.
  • Bug fixes: EWS folder manipulation, SCRAM authentication, SPA navigation inline message clicks, advanced search mobile CSS, message read-on-open setting, mailbox cache clearing.
  • Improvements: php-ews upgraded to >=0.11.2, Sieve filter unit tests, PHP 7.x deprecation removals.
  • v2.5.0: EWS support, browser history API navigation (no page reloads), sidebar redesign, scheduled send, snooze feature, BEC detection, concurrent message loading, drag-and-drop on touchscreens, settings search.
  • v2.5.1: fix on site.js generation comments.
  • v2.4.0: bulk CSV account import, multibyte character fixes, IMAP quota handling, searchbar/form UI corrections, Docker config updates.
  • v2.4.2: HTML sanitizer for external background images, security fixes for request parameters.
  • New features: email screening, reply-to-new-contact warning, Autocrypt auto-encryption.
  • Bug fixes: email display security, database connection errors, profiles page, Selenium tests.
  • Improvements: Sieve filter rules handling, Bootstrap icons in Docker, php-sieve-manager update.
  • New features: GitHub repo querying, IMAP quota display, forward-as-attachment, zh-TW translations, labels/tags, server capabilities display, custom headers support.
  • Bug fixes: contact autocomplete, special folders save, Sieve filter mailbox listing, IMAP TLS/STARTTLS, cookie SameSite settings, profile duplication.
  • Improvements: Unicode/multibyte support, PHP 8.2+ compatibility, reply-all recipient management, 2.x branch stabilization.
  • v1.4.7: Fastmail SMTP/IMAP fix, DKIM body hash fix, local message storage, reply-all sender dedup, DNS prefetch tag stripping.
  • v1.4.6: README cleanup, php-sieve-manager 1.0.9 update, DNS prefetch privacy fix.
  • v1.4.5: keyboard shortcuts restored, IMAP error messages improved, attachment forwarding fix, composer dependencies updated.
Compare different Cypht versions to choose the right one for your needs.
Version PHP * Release Date Key Features Stability
v2.9.0 PHP 8.0+ May 2025 Scheduled messages, brute force lockout, MTA-STS/TLS-RPT, contacts redesign Stable
v2.5.0 PHP 8.0+ October 2024 EWS support, SPA navigation, sidebar redesign, scheduled send, BEC detection Stable
v2.4.0 PHP 7.4+ September 2023 Bulk CSV import, multibyte fixes, Docker config updates Stable
v2.3.0 PHP 7.4+ August 2022 Email screening, Autocrypt, reply-to-new-contact warning, Sieve filter improvements Stable
v2.2.0 PHP 7.4+ August 2024 GitHub repo querying, IMAP quota display, forward-as-attachment, labels/tags, zh-TW translations Stable
v1.4.7 PHP 7.2+ November 2024 Fastmail SMTP/IMAP fix, DKIM validation fix, local message storage, reply-all dedup Legacy
v1.4.6 PHP 7.2+ May 2024 README cleanup, php-sieve-manager 1.0.9, DNS prefetch privacy fix Legacy
v1.4.5 PHP 7.2+ December 2023 Keyboard shortcuts restored, IMAP error messages, attachment forwarding fix Legacy
Choosing the Right Version
  • Production environments : Use 1.4.x branch for maximum stability
  • New features : Use 2.x branch for latest features and improvements
  • PHP compatibility : Ensure your PHP version meets the requirements
  • Security updates : Always use the latest version in your chosen branch