Chromecast firmware versions and release notes

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

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

Release notes

Current Preview Programme firmware version

Device	Firmware version	What's included in the 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 broadly released? Join the Chromecast Preview Programme.

Current production firmware version

Device	Firmware version	What's included in the update?
Chromecast (1st gen)	1.36.159268	Bug fixes and improvements Important: Support for Chromecast (1st gen) has ended. It no longer receives software or security updates, and Google doesn't provide technical support. Users may notice a degradation in performance.
Chromecast (2nd gen)	1.56.467165	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	1.56.467166	Bug fixes and improvements
Cast for Android TV	1.56.292394	Bug fixes and improvements
Chromecast with Google TV (4K)	Build number: STTL.241013.003	Android security patch level has been updated to November 2024. Go to the Chromecast Security Bulletin for more information. Other bug fixes and performance improvements. To manually download the latest update, follow the instructions here.
Chromecast with Google TV (HD)	Build number: STTL.241013.003	Android security patch level has been updated to November 2024. Go to the Chromecast Security Bulletin for more information. Other bug fixes and performance improvements. To manually download the latest update, follow the instructions here.
Google TV Streamer (4K)	Build number: UTTK.241210.003	Security patch updates to January 2025 Bug fixes and improvements To manually download the latest update, follow the instructions here.

Check the firmware version of your streaming device

1. Open the Google Home app .
2. Tap and hold your device's tile.
3. Tap Settings Device information.
4. Under 'Technical information', check for Cast firmware version: 'X.XXX.XXXXX'. If it's a display, check for Fuchsia version: 'X.XXXXXXXX.X.XXXXXXX'.

Download the latest system update for your streaming device

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

1. Go to the home screen of your streaming device.

2. Choose All settings System About System update.