This new update allows for a couple new features previously not possible. Firstly the ability to separate individual lines in each message has been added. Previously when writing a comment, when a user pressed Enter, there would have no effect on the final post. The new line characters would be changed into spaces, formatting the message back into a paragraph as opposed to individual lines. These new lines will now be taken into account when posting, but users be warned, too many lines will cause an error message to be displayed. The user would then need to remove a line or two to condense their message.
The second new addition is rather simple in nature allowing you to now display up to three favorite genres of video game from your Miiverse profile.