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Action Required: Update Duo Mobile Before March 31, 2026

Posted: February 18, 2026
Duo Update app today

To continue accessing Tufts systems that require Duo multi-factor authentication (MFA), some users will need to update their Duo Mobile app.

What’s Changing?

After March 31, 2026, Duo Mobile versions earlier than 4.85 will no longer work for two-step login at Tufts.

If your app is not updated, Duo Push notifications will fail and you will not be able to log in to systems requiring MFA.

What You Need to Do

Step 1: Check Your Device: Your phone must meet these minimum requirements to support the latest version of Duo Mobile:

  • Apple devices: iOS 16.0 or newer

  • Android devices: Android 12 or newer

How to check your phone version

  • iPhone/iPad:
    Settings > General > About > iOS Version

  • Android:
    Settings > About Phone > Android Version

If your device does not meet these requirements, see options below.

Step 2: Update Duo Mobile

If your device meets the minimum requirements:

  1. Open the Apple App Store or Google Play Store

  2. Search for “Duo Mobile”

  3. Tap Update (if you only see “Open,” your app is already current)

  4. Open Duo Mobile

  5. Click the menu (top left corner) and check the version number

  6. Confirm your version is 4.85 or higher

Note: Version numbers can be tricky. Version number 4.106.0 is newer than 4.85.0 because each section is compared separately (4 = 4, then 106 > 85). If your Duo Mobile version begins with 4.9x, 4.10x, or higher — you are fine (4.106 is the latest version). If your version is 4.84 or lower — you must update.

Frequently asked questions

What If Your Phone Is Too Old?

If your phone cannot upgrade to iOS 16.0 or Android 12, you have options:

  • Use another supported smartphone or tablet for Duo Mobile

  • Add a new authenticator (passkey), such as:

    • Fingerprint reader on your laptop

    • Windows Hello

    • Hardware security key (Yubikey 5 Series or similar)

    • Password manager (Google Password Manager or iCloud Keychain)

You can manage your devices in the Duo Device Portal: https://access.tufts.edu/2fa

Faculty and staff may request a hardware security key by submitting a to the TTS Service Desk at it@tufts.edu.

Why Didn’t My App Update Automatically?

In most cases, automatic app updates are disabled in your device’s App Store settings.

You can enable automatic updates here:

What If the App Still Won’t Update?

If you’re having trouble updating Duo Mobile, try the following:

  • Restart your phone

  • Check that you have enough storage space

  • Manually update another app to confirm your App Store is working

  • Contact the TTS Service Desk if the issue continues at 617-627-3376 or it@tufts.edu. 

Updating now will help avoid login disruptions after March 31.