OGC Public Forum :

[nsavard]

What happens when a client makes a GetCapabilities 1.1.0 request to a WCS 1.1 server?
What should be the capabilities response? Does the namespace have to point to http://www.opengis.net/wcs/1.1 instead of http://www.opengis.net/wcs/1.1.1? Should we care about a request < 1.1.1?

We might have to modify our server to set 1.1.1 if a client sends no version parameter (and the WCS should return the highest version), or if < 1.1.1 is not requested.

[skeens]

There are several issues here:
1) There is a standard way to negotiate versions using the ACCEPTVERSIONS parameter to the GetCapabilities request. If that is empty then the default is to respond with the latest supported capabilities.
2) There is also a legacy way of selecting the version with the VERSION parameter but that should not be used. OWS Common 1.1 lists both ways and they are consistent with one another.
3) The URLs you provide have a version number within the path. The OGC standards say nothing about version numbers in the path. Thus, that has no bearing on version returned by the server. If your implementation(s) are distinguished based upon a version number in the URL then likely your server could not support version negotiation anyway.
4) The OGC has moved away from using three digit version numbers and is mandating using 2 digit versions. That decision still needs to be propagated to future standards. The public and OGC still need to understand all of the implications of that decision.
--
Steven

[rajsingh]

My understanding of current policy is that OGC namespaces are always x.y, never x.y.z
_________________
Raj Singh
OGC Compliance Test Coordinator

[tomkralidis]