All About Microsoft reports that a new SEC filing published on July 3, dated June 25, offers details about the "retirement agreement" between Microsoft and former Windows chief Steven Sinofsky

Sinofsky, who left Microsoft abruptly after the Windows 8 launch last year, will be freed from his non-compete clause as of December 31, 2013, after which time he will be free to work for a Microsoft competitor. Up until that date, Sinofsky has agreed not to disparage Microsoft, not to advocate certain Microsoft customers choose competitors' products; and not to encourage Microsoft employees to quit or work for other companies.

According to the filing, Sinofsky also "agreed to a release of claims against Microsoft and its related parties." This may be more of a formality than anything else, as Sinofsky is not believed to have instigated any lawsuit against Microsoft.

  Microsoft and former Windows chief Sinofsky agree on 'retirement' terms