There are some changes to the name comments.
1. The "up"/"down" vote total can be seen by all users, not just by those logged in. However, as before, only registered users can vote on comments.
2. Voting now starts at 1 instead of 0. This includes an implicit up vote by the commenter for their own comment.
3. You can cancel a previously cast vote by pressing the opposite direction. So, if you voted "up" and want to change your mind and vote "down", you will have to press the down arrow TWICE: once to cancel your up vote and again to vote down.
And some upcoming changes...
4. Comments will be sorted from newest-first by default. There will be an option to sort by rating or oldest-first.
5. Unmoderated comments will NOT be shown by default. There will be an option to show them. (Comments are usually moderated within a few days.)
That's all!
Mike