On the Wish List, there is a sort by active.  What does that mean?  Is that a new option? 

How recent other folks posted or requested a book? 

Books I do not have on hold?

Help just says:

To sort, click the menu to the right of Sort at the top right of the list and choose how you would like to sort (according to title, author, date you added the item to your wish list, estimate of when we think you might be offered the book, items on hold, active items only, items on auto-request)  and choose DESC (= descending, or decreasing in value) or ASC (= ascending, or increasing in value).

How recent other folks posted or requested a book?

looking at what it does, that would be my interpretation.  the ones at the top are all ones where the WL keeps getting longer, and there's a couple on the first page that look like they've been posted recently.  at the other end are the couple of books i've got on hold, and some where the WL hasn't moved or changed in some time.  i did notice that it didn't actually change the order whether sorted by ASC or DESC, so i wonder if they're still in the middle of adding it?  i don't remember trying ti before..

Active means those items you do not have on hold.