@Thomas Lorenz Welcome to Microsoft Q&A forum!
I wonder if there we newer releases and also if there is a changes/fixes log for them?
The latest version of the stack is called Azure RTOS NetX Duo, and it includes several improvements and new features compared to the older NetX V5.5.
Where could I get those newer versions (as express logic is microsoft now)?
You can find the release notes and changes log for Azure RTOS NetX Duo on the Azure RTOS Release Notes. The latest version of the stack can also be downloaded from it.
Is the Azure RTOS NetX compatible to the old express logic NetX and could be uses a upgrade to the old V5.5?
I would suggest you, please review the release notes and changes log for the new version of the stack to understand any changes or new features that may affect your old code.
Also, please check Overview of Azure RTOS NetX Duo and Frequently asked questions about Azure RTOS for more details.
I hope this helps! Please let us know if you have any other questions.
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