I just notice that our AEM asset folder in 6.1 do not have a timeline history showing. So how are we supposed to know if this folder was un-published or deleted. this isnt expected behavior is it?
it says on timeline, "The timeline is not available for the selected item type".
I believe this is expected behavior. Folders do not support timelines--only assets. You're on a very old version of AEM, but I don't believe that situation changes in more recent versions.
The timeline of published assets (with a folder that is published) is available.
Hope this helps,