The Django project fixed it by adding canonical links to all the docs, see for example view-source:https://docs.djangoproject.com/en/1.9/ref/models/querysets/ (Has a <link rel="canonical" href="https://docs.djangoproject.com/en/1.10/ref/models/querysets/...)
The postgres project really needs to do that. It's a mess.
The Django project fixed it by adding canonical links to all the docs, see for example view-source:https://docs.djangoproject.com/en/1.9/ref/models/querysets/ (Has a <link rel="canonical" href="https://docs.djangoproject.com/en/1.10/ref/models/querysets/...)
The postgres project really needs to do that. It's a mess.