Last AWS re:Invent 2020, we announced FreeRTOS Long Term Support (LTS) that offers a more stable foundation than standard releases, as manufacturers deploy and later update devices in the field. FreeRTOS is an open source, real-time operating system for microcontrollers that makes small, low-power edge devices easy to program, deploy, secure, connect, and manage.

In 2021, FreeRTOS LTS released 202012.01 to include AWS IoT Over-the-Air (OTA) update, AWS IoT Device Defender, and AWS IoT Jobs libraries that provides feature stability, security patches, and critical bug fixes for the next two years.

Today, I am happy to announce FreeRTOS Extended Maintenance Plan (EMP), which allows embedded developers to receive critical bug fixes and security patches on their chosen FreeRTOS LTS version for up to 10 years beyond the expiry of the initial LTS period. FreeRTOS EMP lets developers improve device security (or helps keep devices secure) for years, save on operating system upgrade costs, and reduce the risks associated with patching their devices.

FreeRTOS EMP applies to libraries covered by FreeRTOS LTS. Therefore, developers have device lifecycles longer than the LTS period of 2 years and can continue using a version that provides feature stability, security patches, and critical bug fixes, all without having to plan a costly version upgrade.

Here are main features of FreeRTOS EMP:

* A critical bug is a defect determined by AWS to impact the functionality of the affected library and has no reasonable workaround.

Getting Started with FreeRTOS EMP
To get started, subscribe to the plan using your AWS account, and renew the subscription annually or for a longer period to either cover their product lifecycle or until you are ready to transition to a new FreeRTOS LTS release.

Before the end of the current LTS period, you will be able to use your AWS account to complete the FreeRTOS EMP registration on the FreeRTOS console, review and agree to the associated terms and conditions, select the LTS version, and buy an annual subscription. You will then gain access to the private repository where you’ll receive .zip files containing a git repo with chosen libraries, patches, and related notifications.

Under NDA, AWS will notify you via official AWS Security channels of an upcoming patch and its timelines (if AWS is reasonably able to do so and deems it appropriate). Patches will be sent to your private repository within three business days of successfully implementing and getting AWS Security approval for our mitigation.

AWS will provide technical support for FreeRTOS EMP customers via separate subscriptions to AWS Support. AWS Support is not included in FreeRTOS EMP subscriptions. You can track issues such as AWS accounts, billing, and bugs, or get access to technical experts such as patch integration issues based on your AWS Support plan.

Available Now
FreeRTOS EMP will be available for the current and all previous FreeRTOS LTS releases. Subscriptions can be renewed annually for up to 10 years from the end of the chosen LTS version’s support period. For example, a subscription for FreeRTOS 202012.01 LTS, whose LTS period ends March 2023, may be renewed annually for up to 10 years (i.e., March 2033).

You can find more information on the FreeRTOS feature page. Please send us feedback on the forum of FreeRTOS or AWS Support.

Sign up to get periodic updates on when and how you can subscribe to FreeRTOS EMP.

— Channy

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