In the same way we show an "internal" badge, we should show if the whole WS or just some of the WS actions are deprecated.
The deprecated badge should be associated with a since version to help handle the WS deprecation policy.
new field in the WS response:
- deprecatedSince: 5.2
A pop-up must explain the depreciation policy. So if a WS is deprecated in 5.2, it will be deleted in a 6.X version