December 3, 2025
Dear One IT Community,
We want to inform you about an important change regarding the Duo Mobile app. Starting Feb. 2, 2026, Duo Mobile app versions earlier than 4.85 will no longer be supported by Duo. This means that users running the older versions may be unable to complete a CalNet two-step after this date.
Next Steps:
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No action is needed from you, other than assisting your customers who may have questions about the Duo Mobile Update
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We are directly contacting users with outdated versions to provide update instructions and options for unsupported devices.
Questions on this update? Contact us at iso@berkeley.edu.
Information Security Office