Mbed OS 5.9.1 released

We are pleased to announce the Mbed OS 5.9.1 release is now available. This is the latest patch release based on the feature set that Mbed OS 5.9 introduces.


In this release, we have added support for the following new target:

  • Wio 3G

Uvisor has been updated to v0.31.1 to fix an issue where the thread code was not functioning correctly.

For Nordic devices, we have added the ability to configure some of the key settings of the softdevice parameters. This allows the user to control the range of functionality in the softdevice as well as the RAM consumption. In particular, the ability to control these values is critical to enable the use of the 16K nrf51 devices.

We have added support for the mbed_start_application for Cortex-M23 devices.

There were a number of issues found with the asynchronous DNS provided as part of the EMAC network driver subsystem released in Mbed OS 5.9.0. These have now been fixed.

We have also fixed a bug where a hard fault was possible in the Nanostack EMAC, if packet reception occurred during initialisation.

CMSIS/RTX has been updated for Cortex-A to fix a multiple interrupt problem in RTX5. This was particularly affecting GR-PEACH/GR-LYCHEE.

There are also a number of other fixes and code improvements.

For full details of this and previous releases, please visit our releases page.

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