CABLEFor starters, +Eduard Gotwig released a new version of the IRC client Cable, which is based on Sushi IRC. It brings visual improvements and a lot of bug fixes, like the buggy user list it used to have, with it.
sudo apt-get install cable
elementary TweaksElementary Tweaks has gone through a lot of changes. The most obvious is the new UI, which was done by +Tom Beckmann. The flexibility of the new UI allows more settings to be added.
Icon theme emod+Luca Di Martino has been working on an impressive new flat icon theme for elementary OS.
sudo apt-get install elementary-emod-icons
New Plank ThemesDue to the new popular trend of using Plank in Panel mode, +Kevin Kleinman released 3 new Plank themes:
sudo apt-get install elementary-plank-themes