About the end of automatic updates
Chromebooks update automatically to keep the software secure and speedy, and provide you with the latest features. These updates end when your Chromebook reaches its auto update expiration date. Learn more below.
What it means
When your Chromebook reaches its auto update expiration date, you’ll receive a “Final Software Update” notification. You can also find this date in your Settings menu under Settings > About ChromeOS > Additional Details. From this date, you can continue to use your Chromebook but it will no longer receive security and feature updates.