What is an EUAP Region in Azure?

Question

Some regions in Azure are referred to as EUAP regions, however I am unable to find any kind of definition as to what this means. What does EUAP stand for?

https://docs.microsoft.com/en-us/dotnet/api/microsoft.azure.documents.locationnames.centraluseuap?view=azure-dotnet

From the link above:

Name of the Azure Central US EUAP region in the Azure Cosmos DB service.

Answer 1

EUAP stands for Early Updates Access Program. These are special canary regions in Azure:

• Central US EUAP
• East US 2 EUAP