Release Notes 19.11
The Azure Sphere 19.11 preview release includes an updated Azure Sphere SDK that supports new features for application developers:
- Application development using Visual Studio Code on Windows or Linux
- An Azure Sphere SDK Preview for Linux, which enables development of Azure Sphere apps on Linux machines
To update to the latest OS
Concurrent with the 19.11 SDK release, we are also releasing a quality update of the Azure Sphere OS. If your devices are currently running the 19.10 OS release or an earlier release and are connected to the internet, they should receive the OS update from the cloud. However, if you have an older Seeed MT3620 Development Kit, you might need to update manually, as described in Update the OS on an early dev kit.
If you have not already migrated your tenant to the new device model, which was introduced in the 19.10 release, see the 19.10 release notes.
To update to the latest SDK
To update to the latest SDK, download the new version from
How to verify installation
You can verify the installed OS version by issuing the following command:
azsphere device show-os-version
To check which version of the SDK is installed, use the following command:
New features and changes in the 19.11 release
The 19.11 SDK release adds support for additional application development scenarios. The following sections describe new and changed features.
Azure Sphere SDK Preview for Linux
This release includes the Azure Sphere SDK Preview for Linux in addition to the Azure Sphere SDK Preview for Windows and the Azure Sphere SDK Preview for Visual Studio. You can develop applications on a Linux machine using either VS Code or the shell. For more information, see Install the Azure Sphere SDK on Linux.
Visual Studio Code
The 19.11 preview release of the Azure Sphere SDK supports development using Visual Studio Code on either Linux or Windows.
The Azure Sphere samples can be built using Visual Studio, Visual Studio Code, or on the command line.
Fixed bugs and common vulnerabilities in the 19.11 OS quality release
The 19.11 OS quality release fixes the following two issues:
An error in I2C reads that was reported on MSDN
An error in which SPI reads or writes may cause the system to crash
In addition, this release includes changes to mitigate against CVE-2019-18840. Although Microsoft does not believe that Azure Sphere is exploitable as a result of these vulnerabilities, we have nevertheless prioritized mitigation.