If you bought a Chromebook a month ago, updates for Chrome OS will also end in 8 years, not 10; Google promises you will get a new OS for the device [0]:

> ChromeOS devices will continue to receive regular updates and security patches through mid-2034. For qualifying devices purchased today whose 10-year support lifecycle extends beyond 2034, Google is committed to supporting your transition to Googlebook OS, with many devices offering direct migration paths.

[0] https://support.google.com/chrome/a/answer/16634428#zippy=%2...