Azure Sphere OS version 21.09 is now available for evaluation in the Retail Eval feed. The retail evaluation period provides 14 days for backwards compatibility testing. During this time, please verify that your applications and devices operate properly with this release before it is deployed broadly to devices in the Retail feed. The Retail feed will continue to deliver OS version 21.08 until we publish 21.09 there in two weeks.
This evaluation release of 21.09 includes enhancements and bug fixes for the OS only; it does not include an updated SDK.
Areas of special focus for compatibility testing with the 21.09 release include:
Apps and functionality utilizing crash handling
Apps and functionality utilizing kernel services and device drivers