Forum OpenACS Q&A: Response to Release Dates: for: 3.2.4 and: 4.0.0
What's turning out to be both fun and frustrating is that every week we seem to discover something else that we didn't know actually worked. Today, for example, we discovered the "who is on the site right now" feature which, as far as I can tell, is not documented anywhere in ACS Classic, never mind OpenACS. Same thing with the user directory. I noticed both of these features working on photo.net, tagged the end of their URLs to the beginning of mine, and Eureka! I discovered a new feature I didn't know I had.
At any rate, we're tremendously psyched about the strides that OpenACS has been making.