Microsoft Windows 10 PC build 14928 and mobile build 10.0.14928.1000 is now under internal testing. The latest internal build is compiled on September 13, 2016.
Microsoft is now rolling out build 14926 for fast ring insider members. There are few new features in the latest Redstone 2 build. The company also released Mobile build 10.0.14926 which unfortunately bring some issues for insiders.
A new cumulative Update kb3189866 build 14393.187 for Windows 10 Anniversary Update users is also available now.