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What is LacrOS?

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  • 3 min read

Chromebooks are recognised for their simplicity, speed, and strong security features. However, like all technologies, they eventually reach a point where updates and security patches are no longer available. That’s where Lacros steps in. It’s an innovative project meant to prolong the lifespan of Chromebooks and ensure their continued smooth performance for an extended period.

In this article, we have discussed what Lacros is, why Lacros is important, how Lacros work and whether it is available now.

Also read: Can Chromebooks get viruses?

What is Lacros?

Lacros is a an acronym for Linux And Chrome OS.

Lacros introduces a structural shift separating the Chrome browser from the main ChromeOS system. Previously, these parts were closely linked, making updating one without affecting the other difficult. With Lacros, they are separated, enabling updates for the Chrome browser without causing changes to the fundamental ChromeOS system.

Why is Lacros important?

This separation brings several benefits:

  • Extended Lifespan: With Lacros, Chromebooks can receive browser updates even after their Automatic Update Expiration (AUE) date. This means you can keep browsing securely and accessing the latest features, even on older devices.
  • Improved Performance: Lacros isolates the browser, reducing resource conflicts and potentially improving overall performance and stability.
  • Enhanced Security: Lacros strengthens ChromeOS’s security structure by separating the browser. Vulnerabilities in the browser are less likely to affect the core system, making your Chromebook more secure.
  • Greater Flexibility: Lacros allows for more flexibility in developing and deploying ChromeOS features. Developers can focus on improving the browser and core system independently, leading to faster innovation and better user experiences.

Also read: How to find a Chromebook’s MAC address?

How does Lacros work?

Lacros introduces two separate binaries:

  • ash-chrome: This manages the ChromeOS system UI, including the login screen, window manager, and other system elements.
  • lacros-chrome: This is the standalone Chrome browser responsible for web browsing and extensions.

These binaries run independently, allowing Chrome to be updated without affecting the core system and vice versa.

Is Lacros available now?

Lacros is still under development but was rolled out to Chromebooks with ChromeOS 116. However, it’s currently not enabled by default.

You can try it by enabling flags in your Chromebook settings, but be aware that it’s still in the early stages and may not be completely stable.

Also read: How to type exponents on Chromebook?

Akash Singh

Akash Singh

Akash is a law graduate who likes to go for bike rides on the weekends soul-searching for answers to his many existential questions. You can contact him here: