Windows 10 build 17103 is now going through internal testing. This new Windows 10 Redstone 4 (v1803) build 17103 (10.0.17103.1000 rs4_prerelease.180213-1557) was compiled on Fab 13, 2018. Windows 10 build 17100 is expected to roll out this week.
Previously, Windows 10 preview build 17093 was released. The latest insider preview build comes improvements for the Game bar, Diagnostic Data, Graphics improvements, Eye Control, Windows Security, Bluetooth, Microsoft Edge, Input, Windows App Permissions, Ease of Access improvements and much more.
The ISO files for Windows 10 build 17093 are also now available for download. You can download it from the link below.