The preview version of Windows 8.1 is set for unveil tomorrow, but news of a brand new build of the operating system has reached the web earlier today. It appears that Windows 8.1 build 9431 has been sent to select testers, with word that this could actually be the version that Microsoft plans to release tomorrow...

Another day in the technology world brings another report of a new Windows 8.1 build. We are mere days away from the debut of the preview version of the upcoming OS, yet reports of new builds continue to reach the web. This time the version in question is Windows 8.1 build 9431 — references for this specific version...