Why firewall firmware Auto Update does not work?

SonicOS 8 and SonicOS 7.3.0 and above, automatic firmware updates are enabled by default for new out‑of‑box setups. Sometimes a new firewall firmware has been released in MySonicWall but firewall does not automatically update to it. 

For example, the screenshot below showed firewall should automatically update all validated firmware releases. But firmware 7.3.4-7013 has been released in MySonicWall, still firewall did not update to it. 

Now clicking on the gear button at upper right handside and check for new updates, it showed the firmware is up to date. There is a delay before firmware appears in the auto‑update channel.  

New firmware versions are not immediately published to the default update process after release.  SonicWall follows a staged rollout process where firmware is made available for manual download and installation via MySonicWall.  Once all criteria have been reached, the release reaches General Availability (GA) status and is made available to the auto update process.

The delay is intentional and helps ensure stability.  SonicWall monitors early adopters (functioning as a canary group) who manually upgrade to the firmware. This allows identification and resolution of any unforeseen issues before broader automatic distribution, reducing risk for customers using the auto update process.

If you want to update firewall firmware right away, you can manually update on the firewall locally, or from NSM to update it.

For details on Auto Update, please refer to KB:
https://www.sonicwall.com/support/knowledge-base/firmware-auto-update-feature-in-firmware-7-1-1/kA1VN0000000KZx0AM