In previous versions end users clicked a 5-star button, which opened a dialog, to rate a topic. In this dialog they used a slider to rate the topic from 1 to 100. Starting with this version, the dialog has been removed and only the 5-star model is used; the user simply hovers over the button to highlight the number of stars they want to give the topic, and then they click. See Submitting Topic Ratings.
Note: Author-only comments that users could enter in conjunction with topic ratings have been removed. Instead, users can enter community-wide comments.