There has been little talk of Windows 7 builds after the leak and public release of the first beta build (7000) earlier this month, but Microsoft has definitely been busy. What many seem to overlook is that build 7000 was compiled on December 12, 2008, at 2:00PM. Since then, there have been many other builds compiled, including 7003, 7004, 7012, 7015, 7016, and 7025. The last one, which leaked over the weekend (though it is much harder to find than 7000), has the following build string number: "7025.0.x86fre.winmain.090120-1850," meaning it was compiled on January 20, 2009, at 6:50PM. That makes it only a week old, which means it is quite new, though of course it is not the newest.
Build 7025 incorporates quite a few bug fixes, as well as a few minor visual changes to built-in programs like Paint and Windows Media Player. It also comes with an updated build of Internet Explorer 8, as you can see in the screenshot above. If you're scratching your head about the apparent return of the Quick Launch toolbar, don't. You can enable the Quick Launch toolbar in Windows 7 with a registry tweak, so in all likelihood, the user who took this screenshot (more at PCBETA) made the appropriate change in the registry beforehand. It's unlikely that Microsoft plans to include the Quick Launch toolbar on by default in Windows 7. Microsoft has made no indication that it will be giving out this build to testers or the public. The one that is released will be much newer, so I would recommend that all those considering installing 7025 wait a bit longer. The software giant is expected to give out a release candidate build of Windows 7 to the public before RTM, which is still set for either late 2009 or early 2010. I'll keep you posted on any other build information to come across