What are cumulative updates?

Cumulative updates are a new method of providing hotfix releases on a scheduled delivery basis for Office Server products, including Project Server and Project desktop 2007 and 2010. Through this model, Office hotfixes are released every two months in the form of a downloadable package of current and previous hotfixes. The primary goal is to deliver high-quality fixes on a predictable schedule. The updated releases are accompanied by a Knowledge Base article describing the contents of the update. The first Project Server cumulative update was released in August, 2008.

The hotfixes found in a cumulative update include:

  • Fixes for issues that meet Office hotfix acceptance criteria. These criteria include workaround availability, customer impact, reproducibility, the complexity of the code that must be changed, and other criteria. These criteria have not changed.
  • Any critical on-demand hotfixes released to date.
  • Any critical security or non-security updates released publicly to date.

Cumulative updates apply to all versions of Office that are currently in mainstream support. For general information about Microsoft product support, visit the Microsoft Support Lifecycle Web site)(http://go.microsoft.com/fwlink/?LinkId=147498).

Provided by Microsoft (Thanks Christophe – your blog a great source of information)