Google Home and Nest Audio devices receive Firmware 3.79 preview with Wi-Fi and audio improvements

Google is currently testing firmware version 3.79.550760 for several generations of its smart speakers, according to reports from 9to5Google. The update introduces changes to audio performance, wireless connectivity and the voice assistant interface. It is available through the Google Home Preview Program rather than the standard production channel.

Root cause

The changes include audio streaming and volume improvements, as well as setup and connectivity improvements on Wi-Fi issues, according to Google’s release notes cited by TechRadar. The update also refines the entry experience for the voice assistant, which sources suggest relates to the integration of Gemini. Overall performance and stability improvements are also included.

Attack path

This release is a standard feature and stability update, not a security patch. There is no indication of a vulnerability or exploit being addressed. The improvements focus on user experience, including smart home control responsiveness and general system stability. No threat actor or malicious activity is associated with this firmware version.

Affected versions

The following devices are receiving the 3.79.550760 update in the Preview Program:

• Google Home (2016)
• Google Home Mini (2017)
• Nest Mini (2019)
• Nest Audio (2020)

Mitigation

• No mitigation is required as this is a feature update.
• Users interested in early access should join the Google Home Preview Program.
• Standard users will receive the update automatically via the production channel in the coming weeks.
• No immediate action is needed for security or stability.

Why it matters

Firmware updates for consumer IoT devices often lag behind mainstream software releases. Teams usually monitor these channels to understand how vendors handle legacy hardware support. Check whether your organisation’s policy allows preview software on production devices. Verify that connectivity improvements do not alter network segmentation requirements. Ensure that audio and assistant changes do not impact data collection expectations. Maintain a record of firmware versions for audit purposes.

Background: Threat actors

A threat actor is any individual or group that initiates a cyber attack. This term covers state-sponsored hackers, criminal syndicates, and disgruntled employees. Understanding their motivation helps you predict their methods and prioritise your defensive controls accordingly.

Read the full guide: Threat Actors Meaning: How to Identify and Attribute Cyber Operations

What to do and how to stay safe: Google

• Review the Preview Program terms if you plan to install the update on corporate devices.
• Monitor the device’s Wi-Fi connection for stability after the update is applied.
• Check that smart home integrations function correctly with the new assistant experience.
• Wait for the general release if your policy prohibits testing preview firmware.

Step-by-step guide: Password Policies Examples That Reduce Password Fatigue

General security guidance from the Vector Bulletin newsroom. It is not confirmed advice from the organisations named in this story.

Frequently asked questions

Is this a security update?

No, the update focuses on audio, connectivity and assistant experience improvements, not security fixes.

Which devices are included?

Google Home (2016), Home Mini (2017), Nest Mini (2019) and Nest Audio (2020) are included.

When will it be available to everyone?

It should take a few weeks to move from the Preview Program to the production channel.