Microsoft announce the release of Office Online Server, the successor to Office Web Apps Server 2013.
This product enables you to deliver browser-based versions of Word, PowerPoint, Excel, and OneNote from your on-premises datacentre with the same functionality as Office Online.
Licensing-wise, any customer with a Volume Licensing agreement can download OOS from VLSC at no cost for view-only functionality. If you want create, edit and save functionality then you need an Office licence with active SA or an Office 365 ProPlus subscription. However, if you buy Office 2016 through Volume Licensing before 1 August 2016, then you won’t need SA until 1 August 2019.
Find the announcement here: http://bit.ly/23tSr2y.