When Microsoft forked their build numbers into 100xx and 101xx lines, we predicted that they were preparing a version to release at BUILD 2015. We also predicted that it would be heavily tested and pushed to both Slow and Fast simultaneously, which would give a good entry point for developers and probably even enterprise evaluators. I was surprised when Microsoft released 10061 last week, and then updated it just two days ago (why???) with four patches, but we ended up being correct in the end.
Microsoft has just released Windows 10 build 10074 to both Fast and Slow users. Its comes with a very small list of known issues, and they are much less severe than they were in previous releases. The first issue tells developers that Developer Mode needs to be enabled in Group Policy, rather than the place in Settings that it will eventually be. The next two issues are more severe: some games cannot be played in full screen and the People app is still broken. I am not sure how wide-spread “some games” is, but they plan to patch it via Windows Update “as soon as possible”.
One major fix is that now, when certain applications that play audio are minimized, they will continue to play audio. This bug made many media players, such as a few SoundCloud apps in the Windows Store as well as Microsoft's own Music app, pretty much useless. Until 10074, you would basically need to launch them, then cover them up with other windows if you wanted more screen real-estate.
If you were a fan of Aero from Windows 7, then you will like the blurred transparency effect of Start and the taskbar. Personally, while I think it looks nice, I was never really attached to that aspect of the Windows UI. Honestly, it used to drive me nuts when it kicked me out of games to complain about how it cannot properly manage 2GB of video memory, despite running perfectly fine if I select ignore. Hopefully that will not come back with it. But, if it is here without causing any problems, it does look pretty. Also, the Start Menu can now be manually resized to better arrange your apps. It also looks like the semi-horizontal layout is a great compromise between the Start Menu and the Start Screen for desktops.
So, as we expected, this build is what happens when Microsoft picks a target and mostly cleans up all of their relevant branches into a solid release. It is still a bit buggy here and there, but it feels better than 10049, which was itself better than 10041. That said, I also upgraded my NVIDIA drivers from 349.90 to 352.63; that could have something to do with it (although I am using the same Intel drivers).
There has not been too many announcements regarding features that are not present in 10074 though. It makes you wonder, at least a bit, how much will be added to the 101xx path until the OS finally launches.