Yet another Windows 10 Insider build information leaked online. Microsoft Windows 10 build 16191 for PC is now under testing. The new Microsoft Windows 10 Redstone 3 build 10.0.16191.1000 (rs_prerelease.170504-1539) was compiled on May 4, 2017. Windows Insider team is also testing Windows 10 Mobile build 15213 (10.0.15213.0 feature2.170504-1703).
Recently, Microsoft also released Windows 10 Redstone 3 build 16188 for PC Fast Ring Insider members with lots of new features and improvements. The company also released Mobile build 10.0.15210.0 feature 2 with minor improvements.
Official Windows 10 Mobile Creators Update build 15063.251 is now available for download. However only selected Windows phones will receive the update. Read more details here.