Chromecast firmware versions and release notes

Last updated: July 22, 2023

Here are the latest firmware versions and release notes for Chromecast devices. You'll also find steps to check the current firmware version and update Chromecast.

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

Release notes

Current Preview Program firmware version

Device	Firmware version	What's included in this update
Chromecast (2nd gen)	1.56.275994	Bug fixes and improvements
Chromecast (3rd gen)	1.56. 291998	Bug fixes and improvements
Chromecast Ultra	1.56.281627	Bug fixes and improvements
Chromecast Audio	1.56.281627	Bug fixes and improvements
Cast for Android TV	1.56.292394	Bug fixes and improvements

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

Current Production firmware version

Device	Firmware version	What's included in this software update
Chromecast (1st gen)	1.36.159268	Bug fixes and improvements
Chromecast (2nd gen)	1.56.275994	Bug fixes and improvements
Chromecast (3rd gen)	1.56.291998	Bug fixes and improvements
Chromecast Ultra	1.56.281627	Bug fixes and improvements
Chromecast Audio	1.56.281627	Bug fixes and improvements
Cast for Android TV	1.56.292394	Bug fixes and improvements
Chromecast with Google TV (4K)	Build number: STTE.230319.008.H1	Bug fixes and performance improvements To manually download the latest update, follow instructions here.
Chromecast with Google TV (HD)	Build number: STTE.230319.008.R1	Bug fixes and improvements To manually download the latest update, follow instructions here.

Support for Chromecast (1st gen) has ended, which means these devices no longer receive software or security updates, and Google does not provide technical support for them. Users may notice a degradation in performance.

Check the firmware version of your Chromecast device

1. Open the Google Home app .
2. Tap your device's tile.
3. Tap Settings   Device information.
4. Under "Technical information," check for Cast firmware: "X.XXX.XXXXX." If the device is on Fuchsia, check for System firmware version: "X.XXXXXXXX.X.XXXXXXX"

Download the latest Chromecast with Google TV system update

Your device will usually download updates automatically. To manually download the latest update, follow these steps:

1. Go to the home screen of your Chromecast with Google TV.
2. Choose Settings System About System update.