How to check your YubiKey firmware version

How to Find Your Firmware Version for Your YubiKey

Knowing the firmware version of your YubiKey is essential before adding your YubiKey as a vault key with Casa app. The minimum supported firmware for Vaults is F/W: 5.5 You can find the firmware version of your YubiKey using either the YubiKey Manager or the Yubico Authenticator.

Method 1: Using YubiKey Manager

1. Download and Install YubiKey Manager:

• Visit the YubiKey Manager download page.
• Select the appropriate version for your operating system (Windows, macOS, Linux).
• Download and install the application.

2. Open YubiKey Manager:

• Launch the YubiKey Manager application on your computer.

3. Insert Your YubiKey:

• Plug your YubiKey into a USB port on your computer.

4. Identify Your YubiKey:

• Once inserted, the YubiKey Manager will automatically detect your YubiKey.
• The main screen will display key information about your YubiKey, including the model, firmware version, and serial number.

5. Locate the Firmware Version:

• Look for the section labeled “Firmware Version” on the main screen. This will display the firmware version of your YubiKey.

• Using YubiKey as a Casa hardware device requires a firmware version of 5.5 or above. 

Method 2: Using Yubico Authenticator

1. Download and Install Yubico Authenticator:

• Visit the Yubico Authenticator download page.
• Select the appropriate version for your operating system (Windows, macOS, Linux, Android, iOS).
• Download and install the application.

2. Open Yubico Authenticator:

• Launch the Yubico Authenticator application on your device.

3. Insert Your YubiKey:

• Plug your YubiKey into a USB port (for desktop) or use an NFC reader (for mobile devices, if your YubiKey supports NFC).

4. Identify Your YubiKey:

• The application will detect your YubiKey and display your firmware version in the Home tab.

By following these steps, you can easily find the firmware version of your YubiKey!

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