REST API version parameter

bfwong — Tue, 07 Jun 2022 13:55:21 GMT

In https://developers.arcgis.com/rest/services-reference/enterprise/rest-api-versioning.htm

The version parameter
While the request parameters and JSON responses are compatible with previous versions, for certain output formats (f=lyr), clients can explicitly specify the version of the requests they are issuing and the response that they want. They can specify this with a version parameter v.
https://<mapserviceResource>?f=lyr&v=10.0&v=9.3
In the above request, the client has explicitly indicated that the request it is issuing, as well as the response it is expecting, should be 10.0 compatible.

What is the meaning of &v=9.3 ?

topic REST API version parameter in ArcGIS REST APIs and Services Questions

REST API version parameter