Windows Vista build 5231 leaked

Normally Microsoft will release a new build of Windows Vista to testers within a week but NeoWin reports Windows Vista build 5231 has already been leaked on the Internet.

Although it's reported that the official October CTP build will have some additional functions.

Released with build 5231 are Windows Media Player Version 11 (still under the guise of Windows Media Player 10), which includes a smart new interface, and the latest Beta of Internet Explorer 7, with tabs adopting the more conventional ‘below the address bar’ style. New sound features are added with active output and input monitors, so hopefully previous sound problems have been resolved.

More info and screenshots over at NeoWin.