Hi neilmcneely - thanks for your question!

This is very good timing since we just announced support for Azure Advisor for Azure Communication Services!

Azure Advisor will send you recommendations for different categories on how to optimize your Azure experience (via cost reduction, performance improvements, etc.). It will now send you recommendations when there are newer SDKs available. You can access this feature through the Azure Portal. To learn more about Azure Advisor in general, you can find the public docs here. 

In addition, the Azure Communication Services team publishes release notes every two weeks with all the latest updates.