Mamut One

Discontinuation of Software Support

Final Maintenance Update

Last updated:  3 November 2021

Notice to all currently registered users of the UK edition of Mamut One ("the Software"), and related maintenance and support services.

The final update of Mamut One (24.0.1052) is now available for download and installation.

We strongly recommend that all customers install the final update as soon as possible.

All Mamut One support services and account management will cease on 31.12.2021.
  • The final update must be installed in order to allow continued archival functionality to your data.
  • Mamut One - Final update 24.0.1052 can be downloaded HERE.


As previously informed in November 2020:

Notice of discontinuation of Software support

In regards to the Mamut UK Visma Software Terms of Service (TOS) sections 1.1.2-1.1.5, 1.3.1-1.3.4, 1.4.5 (12 month's notice time), 2.3.2, 2.3.24, 4.6.3 and the in-software user agreement notice agreed to when installing the Software, that together govern the use of your Software, Visma with this notifies you in writing about the discontinuation of Software support and maintenance from January 1st 2022.

Operational matters and unsupported use

The discontinuation of Software support means that the Software will not receive further regulatory updates, maintenance updates or issue fixes beyond those needed for 2021, and that no phone, e-mail, chat or community based support will be available from January 1st 2022.

Given this, you may continue to use the Software in an un-supported manner for archival and reference purposes, for as long as the built in user access and activation functionality supports it, estimated to be up until the end of 2031 if updated with the latest maintenance update for 2021. If you do not update your Software with the final 2021-update, the archival functionality will be limited to a few years, depending on your version of the Software.

Since the Software is not updated with new rules and regulations beyond 2021, you are strongly advised to not enter any new data into the Software beyond 2021, and no warranty of any kind is provided for any use beyond 2021.

Recommendation for transitioning to Visma Business

Visma Business is a complete business solution for medium sized companies with several customers in the UK. Visma Business combines a large set of standard functions and processes with design features and a strong API for integrations. Please contact Visma's local representative Vismagic ( for more information.

Billing matters

Your billing cycle will have continued as normal for 2020 and 2021. If you have been, or are, billed for Software support falling in the time period of 2022, you may in writing in 2022 claim a pro-rated refund for relevant 2022 months only.

We will keep you updated on the discontinuation of the software support process, and thank you for your loyal customer relationship.