Microsoft is now testing Windows 10 build 16143. The new build 10.0.16143.1000 (rs_prerelease.170711-1516) was compiled on July 11, 2017. Windows Insider team is also testing mobile build 10.0.15234.0 (feature2.170713-1410).
Recently, Windows Insider team released Windows 10 Fall Creators Update (Redstone 3) Insider Preview build 16241 to Fast Ring members. Windows 10 Insider also released Windows 10 Mobile build 15230 features2.
The company also recently released Windows 10 Cumulative update KB4025342 build 15063.483 for Creators Update systems, update KB4025339 build 14393.1480 (Anniversary Update) and update KB4025344 build 10586.1007 (Threshold 2).