These are the latest in a series of post-release updates that go beyond bug-fixing to continue to improve the entire series.
The v1.52g update for The Blitzkrieg from Warsaw to Paris fixes some issues created by Windows 8 and adds full Windows 8 compatibility. For a full list of changes, check out the Forum page.
The v1.06h2 update for Case Blue fixes the disable weather option, which now only disables weather and not the seasons (winter/summer) and in detailed combat rules the counter-attack rules (for air and for land) have been revised. The update also adds a constrained oil variant that will give a more realistic German and all flak (except for axis minor) is now operated by flak troops fixing some issue with some units not receiving reinforcement troops.oil supply. Also check the Forum page to view the full change list. This update also includes full Windows 8 compatibilty.
Get more information on Decisive Campaigns: The Blitzkrieg from Warsaw to Paris and Decisive Campaigns: Case Blue from their official product pages.