If you develop themes or plugins for WordPress, there are lots of changes to note in WordPress 4.4, which will be released in the near future (currently on Beta 4). Hopefully, you’re already across these. If not, it’s probably be a good time to look into these changes and make sure they don’t affect your items.
No need to do anything unless your item is manipulating the comment form, in which case you need to check that whatever your doing still works. Apart from that, it is probably a good idea for theme authors to just check that the styling hasn’t messed up at all.
Please note that an important change also occured in WordPress update API.
Plugin should now be always “packaged” in a folder. If not plugin folder will be renamed… so be aware if you have your own auto update script… just ran into the issue myself !