WhatsApp and Facebook have received updates on Windows 10 Mobile today.
The Facebook update takes the version to 10.1 and brings the UI changes and improvements for some of the devices that were not able to update to version 10 earlier. This update has features like interactive notifications and a new lock screen appearance. For devices already on versions 10 it may be just bug fixes and performance improvement kind of update. The latest changelog reads,
• Deep linking improvements • Bug fixes
WhatsApp has also seen a minor update that may again be about bug fixes and performance improvements. New version is 2.12.226. One bug fix is clear and the update squashes the voice messaging bug.