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IT Home reported on July 26 that Arm issued an announcement on July 9, announcing that it will stop supporting the open source embedded operating system Mbed OS in July 2026, and will no longer maintain it. At that time, the Mbed website will be archived and projects will not be built through online tools.

The news has sparked widespread discussion in the embedded development community, affecting Arm-powered projects such as micro:bit, Arduino and Raspberry Pi.

Arduino published a blog post on July 24, stating that it had begun looking for alternative solutions a few years ago, so it joined the Zephyr project in 2023 and became a silver member of the project.And found a good alternative in ZephyrOS。

In order to allow users to continue using familiar languages ​​and libraries, Arduino needs to create the Arduino kernel based on the Zephyr underlying layer. It plans to release the first beta version at the end of 2024 and start promoting it on various development boards in 2025. The official said that the discontinuation of Mbed will have no practical impact on Arduino user programming, and Arduino will continue to provide support to users.

IT Home Note: Arduino is an Italian open source hardware and software company, project and user community. They design and manufacture single-board microcontrollers and microcontroller packages for building digital devices.

Arduino's hardware products are licensed under CC BY-SA, while the software is licensed under the GNU Lesser General Public License or the GNU General Public License, which means that anyone can build an Arduino board and resell the software.