A new development milestone of the next iteration of the Office System has been leaked and made available for download in the wild. Microsoft is currently making its way to the first Beta of office 2011, a release slated to be available to all users as a public testing build.

However, the Redmond-based company managed to keep a tight lid on all details associated with the development process of Office 2010 since the delivery of the Technical Preview build in July 2010. Still, the silence must not be mistaken for inactivity, as the leaked Office 2010 Build 4417 comes to prove.

Both the 32-bit and the 64-bit flavors of Office 2010 Build 4417 have been leaked and are now up for grabs from various third-party sources. And while torrent trackers and warez websites are serving the bits illegally, Microsoft continues to be mute on the development of Office 2010.

Still, the productivity suite is undoubtedly advancing. According to Wzor, Office 2010 Build 14.0.4417.1000 is labeled as a Beta release, and no longer just a Technical Preview.

Technical Preview testers of Office 2010 have been able to grab the bits for the first development milestone of Office 2010 since July 13, 2009. The Office 2010 Technical Preview is a limited testing program, as opposite to the beta.

The Redmond-based company indicated that the first Beta of Office 2010 would be a public release. Even before the Technical Preview had been made available, the software giant pointed to the first half of 2010 for the release of Office 2010.

There are some changes in Office 2010 Build 14.0.4417.1000 in comparison to 14.0.4302.1000.