Here are the latest firmware versions and release notes for Chromecast devices.
Release notes
Chromecast with Google TV
Build Number: 200918.033
Security Update: December 5, 2020
Published: February 8th, 2021
This software update includes:
- Improved 4K support for TVs and AVRs
- Dolby Audio improvements for Dolby Atmos and Dolby Digital Plus passthrough content
- Android recovery screen improvements and fixes
- Reduced the occurrence of users seeing the Android recovery screen
- Improved instructions when the Android recovery screen is shown
- Security update: security patch level increased on December 5, 2020
- General security, stability and performance improvements
Current Preview Program firmware version
Chromecast (1st gen) — Firmware version 1.36.159268
Chromecast (2nd gen) — Firmware version 1.44.185164
Chromecast — Firmware version 1.44.185164
Chromecast Ultra — Firmware version 1.44.185164
Chromecast Audio — Firmware version 1.42.172094
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 1.36.157768
Chromecast (2nd gen) — Firmware version 1.44.185164
Chromecast — Firmware version 1.44.185164
Chromecast Ultra — Firmware version 1.42.183786
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:
- Open the Google Home app
.
- Tap your device
Settings
.
- Scroll to the bottom and look for Cast firmware version: X.XXX.XXXXX.