IceWarp EPOS 3 Server – Release Notes (Version 14.3.0.9)

IceWarp EPOS 3 Server – Release Notes

Version 14.3.0.9 | July 29, 2026

This release focuses on new features, stability, performance, and numerous improvements to the core IceWarp Server, highlighted below.
Several fixes address issues reported in production environments, including a new capability to restrict login IP addresses by user groups, improved search, time zone detection, and conference recordings.

Administrator Impact Summary

New Features

• SERVER - Added the capability to restrict login IP addresses by user groups for better management in larger instances.

Improvements & Optimizations

• WEBCLIENT - Improved email searching in WebClient by adding a context menu option to find related emails based on subject and sender.
• WEBCLIENT - Improved search functionality in TeamChat by adding a default "Search in comments" checkbox.
• WEBCLIENT - Improved the system to detect and apply time zone changes when necessary automatically.
• WEBCLIENT - Reviewed the search functionality in the WebClient and identified an error with specific search term combinations in the message body.
• SERVER - Improved the tool's search functionality to support multiple keywords and formatted output for better readability.
• SERVER - Improved the domain information tab by suggesting DKIM, DMARC, and SPF DNS records for administrators when none are found.
• SERVER - Improved the tool's performance by skipping account loading when accessing system variables, reducing delays caused by an unresponsive accounts database.
• SERVER - Identified a time mismatch in conference scheduling, where start times are not converted to UTC, causing discrepancies across platforms.

Fixed Issues

• WEBCLIENT - Fixed the issue where image editing options were intermittently unavailable when composing an email.
• WEBCLIENT - Fixed the issue where preview links were not functional in a separate IM window.
• WEBCLIENT - Fixed the ability to drag and drop attachments from existing messages into the new message composer.
• WEBCLIENT - Fixed a JavaScript error that prevented users from creating new documents in the TC room.
• WEBCLIENT - Fixed the Instant Messaging settings to change the behavior of single and double clicks for opening chats in the right panel.
• WEBADMIN - Fixed the issue where the admin could not delete a user account.
• SERVER - Fixed the layout issue of the Public Calendar feature in EPOS version 14.3.
• SERVER - Fixed the issue where IMAP LIST returned \Noselect on Public/Group Folder subfolders, preventing access to shared mailbox content in desktop clients.
• SERVER - Fixed an issue where emails sent to a group were incorrectly marked as SPAM when forwarded to individual members.
• SERVER - Fixed the migration issues for the GW and Accounts databases, addressed constraints and NULL value handling, improved error logging, and added support for DB migration.
• SERVER - Fixed the encoding issue for usernames with diacritics in the TeamChat API in IceWarp Server running on Windows Server.
• SERVER - Fixed the issue with guest accounts unable to use TeamChat on the WebClient by ensuring they are properly configured without a plan.
• SERVER - Fixed the issue of users losing their edits in the WebDocuments interface when reopening a document shortly after closing it.
• SERVER - Fixed the issue of conference recordings not appearing in WebClient by ensuring proper records are available in the database for both old and new conferences.
• SERVER - Fixed the permissions writing issue for the Spam folder in the shared group, ensuring the correct folder is referenced in the acl.dat file.
• SERVER - Fixed the incorrect display of conference times in the mobile app's history.

Security Updates

• none

Breaking Changes & Deprecations

• none

Upgrade Notes

• Downtime required: Yes (service restart required)
• Estimated downtime: Up to 15 minutes when upgrading from 14.2.X
• Backup recommendation: Full configuration and data backup before upgrade
• Rollback supported: No

Compatibility & Configuration Notes

• No changes to default configuration values.
• Fully compatible with existing LDAP and Active Directory integrations.
• No changes to supported browsers for WebClient.

Supported systems

• Windows Server (2016 or newer) and Linux (RHEL 8/9, Rocky Linux 8/9, CentOS Stream 9)
• Outlook Sync (14.1 or newer)
• IceWarp Desktop Client (10.0 or newer)
• IceWarp FileSync (14.1 or newer)
• IceWarp mobile app (5.0 or newer) and Authenticator (1.1 or newer)

Support & Feedback

If you experience any issues after upgrading, contact IceWarp Support and reference IceWarp Server 14.3.0.9. Please include the server version, operating system, database type and version and relevant logs when opening a support case.