Viber has pushed out an update to its Windows Phone app. However, people looking for new features might be disappointed as this release does not come with a published change log.
For the record, the new version number for the Viber app is 220.127.116.11. While it's likely this update is just for bug fixes and small improvements, please let us know if you do spot anything major in the Viber app in our comments.
Thanks to everyone for the tips!