Flatcar Container Linux LTS is a Long Term Support edition of Flatcar Container Linux, ideal for production container environments requiring the highest stability and security.

Flatcar Container Linux LTS is a self-updating operating system designed for containers, making it ideal for running Kubernetes and other container platforms. It is suitable for anyone deploying containerized applications, particularly those seeking to do so securely or at scale.

Why users choose Flatcar Container Linux LTS

• Security: A minimal distribution with immutable file system meets NIST recommendations for application container security ("Whenever possible, organizations should use these minimalistic OSs to reduce their attack surfaces and mitigate the typical risks [of] general-purpose OSs.")
• Auto-updating: With Flatcar's robust auto-update mechanism, it's easy to keep your entire fleet up-to-date with the latest capabilities and security patches, and roll-back in the event of an upgrade issue on a specific instance.
• Reduced complexity: As a minimal distribution, Flatcar includes just those components you need to deploy your containers, and nothing more. Also, its immutable file system and auto-update mechanism means it requires minimal operational support.
• Long Term support: Flatcar Container Linux LTS is maintained for an extended lifetime of up to 18 months, making it ideal for users valuing stability over new features.