Release Notes

OTRS MasterSlave 6 Patch Level 20

OTRS Group, the world’s leading provider of the OTRS service management suite, including the fully managed OTRS solution and the ITIL® V3-compliant IT service management software OTRS::ITSM.

November 15, 2019 — OTRS Group, the world’s leading provider of the OTRS service management suite, including the fully managed OTRS solution and the ITIL® V3-compliant IT service management software OTRS::ITSM, today announces the first release of the OTRS MasterSlave module 6 patch level 20.

Please note that from now on we will only officially support OTRS 6 and following versions for regular maintenance. The last supported version for security fixes is OTRS 5.


What’s New

  • Fixed: After unset a Master ticket, the ticket link is not updated.

Bug Fixes

  • Bug#14781 – Can not select the „UnsetSlave“ and the „UnsetMaster“ values on the „Update/Add Ticket Attributes“ section of Generic Agent view (bug#14778).


Download the latest release with your OTRS-ID – your personal all-round account

Your benefits:

  • free promotion specials
  • free access to our knowledge database to solve problems
  • stay informed with our OTRS newsletter and manage your newsletter subscription
  • contact us more easily and keep track of your requests

If you already have login information to our OTRS portal, you also have an OTRS-ID (email address). Please, log in as usual You can find the current releases in the section “Download.“ If your password is not accepted, please use the „Forgot password“ link, so we can send you a new password.

If you do not have an OTRS-ID, you can register for free at

If you don’t want to use the benefits of an OTRS-ID, you may proceed with the Public Download.

Professional Services

OTRS Group, the source code owner, provides worldwide enterprise support, consulting and engineering including process design, implementation, customization, application support, and fully managed service.

Get professional service and support

Community Support

Leverage the various OTRS Community sources to get involved:

Release Name:

OTRS MasterSlave 6 Patch Level 20

Release Details

  • Release name: OTRS MasterSlave 6 Patch Level 20
  • Required OTRS release: OTRS 6 Patch Level 23 or higher
  • Release date: November 15, 2019
  • Release type: patch level