Windows 10 build 14393.805 is expected to release on February 14. The new Windows 10 cumulative update build 14393.805 for PC and mobile build 10.0.14393.805 were compiled on January 25, 2017.
Currently, Microsoft is testing PC build 14393.823 and mobile build 10.0.14393.823. Recently, Microsoft also rolled out new Insider PC and mobile build 15031 for Fast Ring members. However, few Insider members are reporting ‘download stuck at 0%’ and other issues with the build. Read here for fixes.
Finally, Windows 10 build 15025 ISO images are now available for download. You can download ISO from here.