A new API version is created when you want to change a published API's behaviorbehaviour, authentication mechanism, resources, throttling tiers, target audiences etc. It isn't recommended to modify a published API that has subscribers plugged to it.
...
Include Page APIMShared:Create new API Versions APIMShared:Create new API Versions
| Tip |
|---|
Tip: By default, only the latest version of an API is shown in the API Store. If you want to display multiple versions, set the |
You have created a new version of an API. In the next tutorial, you deploy this API as a prototype and test it with its older versions.