Firstly, improvements have been made to keep conversations via Xbox One in sync, with push notifications added to alert users when a new message arrives. The chat history has also been lengthened to 1000 messages, rather than just displaying messages from the past week.
There's now a feature to filter contacts by whether they're currently online, and a tutorial has been added for those new to the whole chat-through-your-Xbox thing.
The most thrilling new feature, above all, is the addition of Captain America-themed "Winter Soldier" emoticons, which come to regular Skype as well as Skype for Xbox One. Skype tell us that these limited-edition emoticons will allow us all to "convey even more action-packed emotion with your Skype friends." Now that's the kind of new feature we were all looking forward to.
Skype of Xbox One is available to players with an Xbox Live Gold membership.