It looks like Viber is halting development on its universal Windows 10 app for the time being. In an email sent to a customer, reported by German blog WindowsArea.de (via Onmsft), a Viber support representative confirmed that the company has decided to put updates to the app on hold "until further notice."

Viber puts updates to its Windows 10 app 'on hold until further notice'

From the email:

In order to allocate our limited company resources in the most efficient way possible, we have decided to put any updates for Windows Phone 10 and Windows 10 on hold until further notice.

There are no version releases planned in the forseeable future. We will address this issue if our plans change and a decision is made to release an update.

We apologize for the inconvenience.

The wording of the email leaves plenty of room open for updates down the road, but it seems the app will be abandoned for the time being. That's unfortunate to see, as Viber has enjoyed somewhat regular updates up to this point, with the last coming in late January.

The app is still fully functional for the moment, and will likely continue to be for some time. However, without any updates in the pipeline, it likely won't be long before it falls behind its counterparts on other platforms in terms of features.

Download Viber from the Windows Store