IceWarp EPOS Server – Release Notes (Version 14.1.0.20)

IceWarp EPOS Server – Release Notes

Version 14.1.0.20 | February 11, 2026

This release focuses on stability and security in core IceWarp Server services.

Administrator Impact Summary

Item	Status
Service restart required	Yes
Configuration changes required	No
Database migration	No
Breaking changes	No
Security-related release	Yes
Recommended action	Planned update

New Features

none

Improvements & Optimizations

none

Fixed Issues

Critical Fixes

none

Other Fixes

SERVER - Fixed the crash of the Control service while the Web administrator logs in.

Security Updates

Addressed a security issue related to cross-site scripting via email headers.

Severity: Medium
Administrator action: Update recommended

Breaking Changes & Deprecations

No breaking changes or deprecations are introduced in this release.

Upgrade Notes

Downtime required: Yes (service restart required)
Estimated downtime: Up to 15 minutes when upgrading from 14.1.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.

Support & Feedback

If you experience any issues after upgrading, contact IceWarp Support and reference IceWarp Server 14.1.0.20.
Please include server version, operating system, database type and version and relevant logs when opening a support case.