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Release Notes 5.2

End of support for BlueMind 5.2

In accordance with our release lifecycle policy, the end of support dates for BlueMind 5.2 are :

  • patch support: 06/27/2025
  • security support: 12/26/2025

Discover here the major evolutions and new features of BlueMind, available from version 5.2.0.

↳ To download and test BlueMind 5.2, go to BlueMind Download area.

To find out about the latest developments and technical improvements in the hotfix versions of BlueMind 5.2, consult the changelogs.

Upgrade from a lower version of BlueMind

For upgrades from BlueMind version 4, see BlueMind major version update.

Mail

This version of BlueMind brings a host of new features to enhance webmail use and make it easier for users to do their jobs.

Schedule e-mail sending

The long-awaited "Schedule sending" feature is now available in BlueMind! It is now possible to choose the day and time to send a message:

Add "Reply to" feature

The new "Reply to" field lets you define the user(s) who will receive and manage replies to a sent message:

For more information on this feature, visit Mandating a third party to manage answers.

E-mail size display

The message size is now visible next to the date:

In addition to sorting in ascending or descending order in the message list, it is now also possible to search messages by message size:

E-mail delivery error messages

Delivery error messages are clarified with a banner and clearer information on the cause of the problem:

In addition, documentation has been initiated for the most common errors and will be expanded in the future: Understanding delivery errors

Downloading linked attachments

The option "Save All" includes files attached to the message as download links in the generated archive.

Administration

Securing administration rights

Until now, it was advisable not to assign the "System Manager" role to a user with access to applications (Mail, Calendar, etc.). Version 5.2 of BlueMind further enhances security by no longer allowing it to be assigned in this case. So, if they want to delegate this role, administrators must create a user specifically dedicated to administration.

Architecture

KeyDB

In line with its work on redesigning resilient architectures, BlueMind is gradually replacing components that cannot be clustered. In concrete terms, in a multiserver architecture, this means that a BlueMind server can take over without loss of data or session from another server that ceases to function.

With 5.2, KeyDB replaces Hazelcast.

Changes are to be expected for network flows as ports 5701:5715 in TCP and UDP are replaced by 6379/TCP.

Component updates

  • PostgreSQL: 17.2
  • Keycloak: 25.0.6

BlueMind API

Our APIs are now compliant with the OpenAPI specification.

End of distributions support

Due to the end of support by their respective publishers, BlueMind 5.2 no longer supports the following distributions:

  • Debian 10 Buster
  • RedHat Entreprise Linux / CentOS 7