Windows CE releases monthly and quarterly updates, some of the updates are new 'bits' for the catalog, the Compact Framework 2.0 components for example, others are QFE's - here's the last three updates for Windows CE 5.0.

The 2005Q4 quarterly update is available here - for a list of what's included check the update page

The 2005 Full update is available here - for a list of what's included check the update page

The 2006 January monthly rollup is available here for a list of what's included check the update page

The 2005 Full Update and 2005Q4 Update contain the .NET Compact Framework 2.0 catalog update for Windows CE 5.0

- Mike