Exhaustive List for Update types?

[Ahmed]

Hi, was wondering if there was a list of the types of Updates that the API returns for the updates.friends method?
So far I have:
*review
*comment
*userchallenge
*recommendation
*authorfollowing
*groupuser

[Jeff]

Hi Ahmed,

That's a pretty good list. Here are a few more that can be returned:
* userquote (friend liked a quote)
* userlistvote
* userstatus (the most recent progress update they submitted on any book)
* readstatus (changing the exclusive shelf of a book, for example moving a book from to-read to read)
* friend (user is now friends with)