DTDT Hmmm, it is true that the spine-unity documentation has been updated recently, but the content itself has changed little, simply by splitting the pages. Perhaps the old documentation you are referring to is the following page?:
https://esotericsoftware.com/spine-unity-attachments-and-attachmenttools
There is also another old page below that summarizes the Spine Events, which is a little harder to find but is still linked from within the current documentation:
https://esotericsoftware.com/spine-unity-events
These pages are easy to follow, but they explain a very limited part of the spine-unity runtime and are not comprehensive documentation. The comprehensive documentation has been updated as the runtime has been updated, but it became so long that it has now been split into the current separate pages.
