From the article:
"We also tailor our API reference documentation to specific users. It notices who is logged in and annotates fields based on their account API version."
"We also tailor our API reference documentation to specific users. It notices who is logged in and annotates fields based on their account API version."
I opened the docs in another browser to compare the differences and I am indeed seeing my older version when signed in. It's all very behind the scenes...I would have gotten tripped up by this had I tried to make changes to my code, and I wouldn't be surprised if many others have run into this issue.
My preferences would be for there to be multiple versions of the docs and have your version be very clearly laid out to you rather than automagically updating docs based on your pinned version.