Following our discovery of 14393.5 being in the pipeline for Windows 10 Insiders and shortly after being pushed out to them, we've now noticed that build 14393.31 has appeared in the build feeds. This new build revision is quite a large leap from its predecessor, jumping from a 14393.5 to a 14393.31 revision.
It looks as if, with a such a big leap, that this build will include many fixes and improvements which will greatly improve stability and performance across the board for Windows 10 and Windows 10 Mobile ahead of the Anniversary Update releasing next week on August 2nd. Insiders on the Fast Ring should expect to see either this build release later this week, unless there is an issue, in which case we may receive a later build.
We'll keep our eyes and ears to the ground as always and let you know as soon as a new build drops.
In the meantime, let us know in the comments below if you're facing any issues with Windows 10 and provide Feedback Hub links, too!