Chromecast firmware versions
Here are the latest firmware version for Chromecast (1st gen), Chromecast, and Chromecast Audio devices.
Current Preview Program firmware version
Chromecast (1st gen) — Firmware version 1.25.90308
Chromecast — Firmware version 1.25.90308
Chromecast Ultra — Firmware version 1.25.90308
Chromecast Audio — Firmware version 1.25.90308
Want to test drive the latest firmware version before it's released broadly? Join the Chromecast Preview Program.
Current production firmware version
Chromecast (1st gen) — Firmware version 1.25.90308
Chromecast — Firmware version 1.25.90308
Chromecast Ultra — Firmware version 1.25.90308
Chromecast Audio — Firmware version 1.25.90308
Cast for Android TV — Firmware version 1.25.91000
How to check your firmware version
To check which firmware version you're on,
- Make sure your phone or tablet is connected to same Wi-Fi network as your Chromecast device.
- From your mobile device, open the Google Home app
.
- Tap DEVICES
to see your available Chromecast devices.
- Scroll to find the device card for the Chromecast you'd like to find the firmware version for.
- In the top right corner of the device card, tap the device card menu
.
- Tap Settings.
- Scroll to the bottom and look for Cast firmware version: X.XXX.XXXXX.
.
to see your available Chromecast devices. 
.
Elise is a Chromecast expert and author of this help page. Leave her feedback below about the page.
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