--- title: Real-time Ubuntu 22.04 LTS Beta – Now Available description: Real-time Ubuntu will power the next generation of embedded innovations by providing a deterministic response time to their low-latency requirements. url: https://canonical.com/blog/real-time-ubuntu-released --- 1. [Blog](https://canonical.com/blog) 2. Article --- [Edoardo Barbieri](https://canonical.com/blog/author/edoardo-barbieri "More about Edoardo Barbieri") 27 April 2022 # Real-time Ubuntu 22.04 LTS Beta – Now Available [Embedded](https://canonical.com/blog/tag/embedded) [Industrial](https://canonical.com/blog/tag/industrial) [real-time Linux](https://canonical.com/blog/tag/real-time-linux) [robotics](https://canonical.com/blog/tag/robotics) [Ubuntu](https://canonical.com/blog/tag/ubuntu) --- Share the article [Real-time Ubuntu is now generally available](https://ubuntu.com/blog/real-time-ubuntu-is-now-generally-available) On 21 April 2022, [Canonical announced Real-time Ubuntu 22.04 LTS](https://ubuntu.com/blog/ubuntu-22-04-lts-released), available in beta. Based on upstream v5.15, the 22.04 LTS kernel integrates the out-of-tree PREEMPT\_RT patch for x86\_64 and AArch64 architectures. Once in GA, the new real-time kernel will power the next generation of robotics, IoT, and telco innovations by providing a deterministic response time to their extreme low-latency requirements. ### Deterministic response times The scheduler of the [Real-time Ubuntu](https://ubuntu.com/real-time) beta can preempt threads in the kernel, including in critical sections, interrupt handlers, and interrupt-disable code sequences, guaranteeing bounded responses. By minimizing the non-preemptible critical sections in kernel code, the PREEMPT\_RT patches, not fully upstream yet, make the kernel more preemptive than mainline. ### Getting ready for production As this is a beta release, it comes with no support, and it is advised not to use it for production workloads. We are committed to bringing the real-time kernel to production level, and your feedback will help us get there. Please consider testing and positively impacting the Ubuntu community by reporting any bugs you may encounter [here](https://launchpad.net/ubuntu-realtime)*.* Also, consider joining our [free beta programme](https://ubuntu.com/embedded#beta-signup) for an open communication channel with our team, provide feedback, and share suggestions. As a [Real-time Ubuntu](https://ubuntu.com/real-time) beta tester, we will notify you first once the kernel is production-ready. ### Get the real-time kernel beta The beta kernel is available for free for personal use via [Ubuntu Pro](https://ubuntu.com/pro), the most comprehensive Linux enterprise subscription, covering all aspects of open infrastructure. To attach your personal machine to a Pro subscription, please run: ``` pro attach ``` To enable the real-time beta kernel, run: ``` pro enable realtime-kernel ``` Please note you will need to manually configure grub to revert back to your original kernel after enabling real-time. For more information: ``` pro help realtime-kernel ``` ### Learn more We recently hosted a webinar covering: * What real-time is and common misconceptions * Market applications * Linux kernel preemption * Preemption modes available in mainline * PREEMPT\_RT * Real-time Ubuntu 22.04 LTS Beta Thanks to everyone who attended, asked questions and provided feedback throughout the discussion! For those who couldn’t make it, [the webinar is now available on-demand](https://ubuntu.com/engage/an-introduction-to-real-time-linux-part-i). [Technical deep-dive into a real-time kernel](https://ubuntu.com/blog/real-time-kernel-technical) ### About Canonical Canonical is the publisher of Ubuntu, the OS for most public cloud workloads as well as the emerging categories of smart gateways, self-driving cars and advanced robots. Canonical provides enterprise security, support and services to commercial users of Ubuntu. Established in 2004, Canonical is a privately held company. ## Sign up for our newsletter Get the latest Canonical news and updates in your inbox. Work email: \*I agree to receive information about Canonical's products and services. In submitting this form, I confirm that I have read and agree to [Canonical's Privacy Notice](https://canonical.com/legal/data-privacy/contact) and [Privacy Policy](https://canonical.com/legal/data-privacy). Sign up ## Share on --- ## Related posts [### Canonical and CIX Technology announce strategic collaboration for edge innovation](https://canonical.com/blog/canonical-and-cix-technology-announce-strategic-collaboration-for-edge-innovation) Canonical, the publisher of Ubuntu, and CIX Technology, a semiconductor innovator, today announced a strategic collaboration to deliver an optimized Ubuntu experience on CIX... 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