Chromecast firmware versions

Here are the latest firmware versions for Chromecast (1st gen), Chromecast and Chromecast Audio devices.

Firmware updates are done in stages, the production firmware versions listed here are updated once that version is available to all devices.

Current Preview Program firmware version 

Chromecast (1st gen)  —  Firmware version 1.36.159268​

Chromecast (2nd gen) — Firmware version 1.49.250946

Chromecast — Firmware version 1.49.250946

Chromecast Ultra — Firmware version 1.50.250947

Chromecast Audio — Firmware version 1.42.172094

Want to test drive the latest firmware version before it's broadly released? Join the Chromecast Preview Program. 

Current production firmware version

Chromecast (1st gen)  —  Firmware version 1.36.157768

Chromecast (2nd gen) — Firmware version 1.49.250946

Chromecast — Firmware version 1.49.250946

Chromecast Ultra — Firmware version 1.50.250947

Chromecast Audio — Firmware version 1.42.172094

Cast for Android TV — Firmware version 1.42.179832

How to check your firmware version

To check which firmware version you're on:

1. Open the Google Home app .
2. Tap your device  Settings .
3. Scroll to the bottom and look for Cast firmware version: X.XXX.XXXXX.