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📣Important update:

Arm Announces End of Life Timeline for Mbed.Read the full announcement.

Arm Mbed OS is an open source embedded operating system designed specifically for the "things" in the Internet of Things. It includes all the features you need to develop a connected product based on an Arm Cortex-M microcontroller, including security, connectivity, an RTOS and drivers for sensors and I/O devices.

Mbed OS provides a platform that includes:

• Security foundations.
• Cloud management services.
• Drivers for sensors, I/O devices and connectivity.

Therelease notes detail the current release. You can also find information about previous versions.

The software is provided under theApache-2.0 license. Contributions to this project are accepted under the same license. Please seecontributing.md for more information.

This project contains code from other projects. The original license text is included in those source files. They must comply with ourlicense guide.

Folders containing files under different permissive license than Apache 2.0 are listed in theLICENSE file.

We have adeveloper website for asking questions, engaging with others, finding information on boards and components, using an online IDE and compiler, reading the documentation and learning about what's new and what's coming next in Mbed OS.

We also have acontributing and publishing guide that covers licensing, contributor agreements and style guidelines.

For more information about Mbed OS, please seeour published documentation. It includes Doxygen for our APIs, step-by-step tutorials, porting information and background reference materials about our architecture and tools.

To contribute to this documentation, please see thembed-os-5-docs repository.

Please note that if you intend to use Mbed OS in a real product then you should consider the security implications of your application. Mbed OS provides user hooks (functions prefixed with WEAK symbol) that are intended to be overridden. We recommend that you carefully consider the threat model of your application and override the default user hooks provided by Mbed OS to fit your application's security needs.

For example, Mbed OS executesmbed_die when there is an error.mbed_die by default halts the system. A production application should override weakly linkedmbed_die function and provide own implementation suitable for their needs taking care of any security vulnerabilities and production considerations.