The google thing gets worse every release.

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 slides are from mid-2013, how many points are still valid? Has there been progress in the last 3 years?

From skimming through, I'd say the vast majority. Not sure about the PDF doc link issues as I only use the online HTML Docs but the overall generation of the docs is still a black art.

I'm just trying to get started at PG contributing, and a lot of things regarding the process and regarding the strong emphasis on backwards compatibility ring true.

But my experience is very limited, so take that with a grain of salt.