The latest Windows 10 Insider build which was released yesterday has an updated Messaging app packed in it. The update improved the app’s UI with Fluent design features.
Microsoft has never paid much attention to the built-in Messaging app in Windows 10, evident from the fact that the app received last major update back in 2016. This update isn’t a major update either, just some UI improvements as per Microsoft’s latest Fluent design guidelines.
This update could possibly related to the upcoming Always Connected PCs. Always Connected PCs will run on Windows 10 S and have LTE connectivity, hence a desktop messaging app would be needed. However, this update could also be a general cleanup update just to keep Microsoft apps in sync with the Fluent design since it wasn’t included in official changelog.
The app doesn’t offer much other than letting you read your messages that were sent or received on your mobile device or Windows 10 PC with carrier connectivity. The update isn’t live for Windows Mobile yet, only for Windows 10 PC fast ring insiders on Skip Ahead branch with latest build 17074.