# Duo MFA compatibility update
**URL:** https://community.passbolt.com/t/duo-mfa-compatibility-update/14029
**Category:** Announcements
**Created:** [January 16, 2026, 1:12pm UTC](https://community.passbolt.com/t/duo-mfa-compatibility-update/14029 "2026-01-16T13:12:34Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@Vivien](https://community.passbolt.com/u/Vivien)
#### Post date: [January 16, 2026, 1:12pm UTC](https://community.passbolt.com/t/duo-mfa-compatibility-update/14029/1 "2026-01-16T13:12:34Z")
Hello,
This is a message for administrators using Duo MFA with Passbolt Community Edition (CE) or Pro that are still on Passbolt 4 series.
### What’s happening?
Duo has announced the deprecation of some of their legacy services.
As a result, older Duo clients present with older version of Passbolt will stop working after February 2.
### Are you affected?
- **If you are not using Duo MFA**
You are not affected by this change and do not need to take any action.
- **If you are using Duo MFA with Passbolt 5 series or later**
You are not affected. You are already using Duo’s newer client.
- **If you are using Duo MFA with Passbolt 4 series**
Your Duo integration may stop working after **February 2**.
To avoid any authentication issues, you must upgrade to Passbolt 5 before this date, or disable Duo as an MFA provider.
### How to double-check
To confirm whether you’re affected:
- **Check your Passbolt version**
If you’re on Passbolt 5 or later, you’re all set.
To know the server version, from the passbolt web interface, you can hover the heart in the bottom right corner once logged in.
- **Check Duo’s “Unsupported Clients” report**
Duo provides an admin report that lists clients using deprecated integrations.
You can find step-by-step instructions here:
[https://help.duo.com/](https://help.duo.com/s/article/9451?language=en_US#identify)
### What we recommend
If you’re still running **Passbolt 4.x** , please plan your upgrade as soon as possible to ensure uninterrupted access and MFA protection.
### Where to find help?
If you are using **Community Edition** , please reach out via the **Passbolt Community Forum** if you have questions.
If you are using **Passbolt Pro** , you can contact us through your **regular support channels**.
Thank you for helping us keep your passbolt setup secure and up to date.
Best regards,
**The Passbolt Team**
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### Author:  [@Vivien](https://community.passbolt.com/u/Vivien)
#### Post date: [January 16, 2026, 1:27pm UTC](https://community.passbolt.com/t/duo-mfa-compatibility-update/14029/2 "2026-01-16T13:27:49Z")