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Google details new firmware for Chromecast with Google TV and Nest Wifi Pro

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Google details new firmware for Chromecast with Google TV and Nest Wifi Pro

Google details new firmware for Chromecast with Google TV and Nest Wifi Pro

Abner Li | Oct 29 2026 - 11:18 am PT 0 Comments

Today’s ( October 29, 2026 ) Google Home release notes detail what’s new in firmware updates for the Chromecast with Google TV and Nest Wifi Pro.

The first update of 2026 for the Chromecast with Google TV (4K) rolled out earlier this month . At the time, Google’s changelog only mentioned the August 2026 Android Security Patch Level and “Other bug fixes and performance improvements.”

This changelog adds “ Connectivity, media streaming, and display performance improvements .”

Google also noted today that the Chromecast with Google TV (HD) is receiving this update, but the new firmware build hasn’t been posted yet .

Networking : Enabled automatic failover to ISP DNS when public DNS is blocked. Enhanced node setup reliability.

Platform & Wireless : Optimized mesh RSSI and client-steering performance, and enhanced wpa_supplicant and DHCP client stability.

Ecosystem & Security : Rolled up Google Home Platform updates and applied comprehensive security enhancements.

The updated firmware does not appear to have rolled out yet as the listed and on-device version remains 3.78.518349 from February/March 2026 .

Google also details what’s new in this month’s Nest Wifi (2019) update we previously spotted:

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