An anonymous reader writes "Anyone who uses Skype on Linux will be happy to hear that a new version has been made available today, bringing with it a host of essential updates and new features. Skype 4.0, codenamed "Four Rooms for Improvement," is long overdue, and Marco Cimmino makes a point of thanking Linux users for their patience on the Skype blog. The main improvements Skype is delivering include much improved audio call quality, better video support, and improved chat synchronization. For video specifically, Skype has spent time implementing support for a much wider range of webcams, so if your camera didn't work before today you might be surprised to find it does in Skype 4.0. Visually, Skype has received a new Conversations View, which brings all chats into a single, unified window (you can revert to the old view if you prefer). There's also a new Call View, presence and emoticons have been redesigned, and you can now store and view numbers within each Skype profile."