This cannot be performed as an update, you must uninstall the game and run the newest version of the installer.
Changes include:
-Proper support for higher game resolutions
-Online Multiplayer through CnCNet
-Updated installer and update system
-Updated game launcher, including options to configure the game settings directly from the launcher

This is a minor update to address issues with the Rise Of The Mercenaries campaign, as well as update some in game menus. Changes include:
-Fixed an issue where an improper string entry was displayed in M1V1 (properly this time)
-Fixed an issue where the AI would not rebuild after a building was destroyed in M1V1
-Fixed an issue caused by Siberian Gremlin’s string editor which could cause
crashes in the credit screen and D2K+ (properly this time)
-Redesigned mission select menu, thanks to Grand_Leo for the menu art
-Fixed graphic of Heavy Factory for Mercenary house, no longer displays the menu art for the ornithopters

This update contains numerous updates and bug fixes. Changes include:
-Fixed an issue where an improper string entry was displayed in M1V1
-Fixed an issue where units would not spawn properly in survival mode
-Fixed an issue caused by Siberian Gremlin’s string editor which could cause
crashes in the credit screen and D2K+
-Redesigned mission select and survival mode menus

Survival Mode Beta was heavily modified to increase difficulty based on player feedback:
-Map has less resources for player base, forcing players to work harder to
fortify their base
-Additional wave added at 90 minute mark
-Wave at 80 minutes now includes even more troops for Harkonnen and
Emperor factions
-Harvester and Carryall replacements are cutoff at 80 minutes
-Ordos resources have been enhanced significantly
-Enhanced AI have been implemented for house Ordos, significantly
increasing the rate of troop production (AI provided courtesy of Luminar)

New content was added to the Rise Of The Mercenaries campaign:
-4 new music tracks: New Beginning (originally titled Ben Gess 2), House
Corrino,Mekanikz Tweek and Misuse Of Force (originally titled Misuse).
Credit to DJCID for the first 3 tracks and Kevin MacLeod for Misuse.
-Mission 2 was added. This is the first release of mission 2, and should any
bugs be encountered please report them.

Debug Menu was added to the ingame options:
-Allows you to switch houses ingame, allowing easy AI debuging and testing
-Allows easy way to quit
-Provides a method to switch difficulty during gameplay
-Option to play as sandworm color and change sandworm frequency
in skirmish (requires mission restart)

The update program has also been configured to automatically detect resolution settings.
I have included both the regular update and the updated combined update below. If you have no idea which update to install, choose the combined update.
Combined Update 1.6.1.4 (includes all previous updates as well)
Update 1.6.1.4 (includes only new changes)

This  is a major update for 32 bit users, as it finally resolves the issue with the launcher not reading the registry strings correctly, allowing it to function properly for those systems.
Other changes include:
-Registry fix for tracking if user has high resolution update installed
-Fixed version number displayed in menu to be accurate
-Added Survival Mode test, allowing a sneak peak of survival mode
-Fixed minor issue with uninstaller, will now remove desktop shortcut correctly
-Update Program will now close any running instances of the game and launcher
-Added additional error handling to launcher
I have included both the regular update and the updated combined update below. If you have no idea which update to install, choose the combined update.
Combined Update 1.6.1.3 (includes all previous updates as well)
Update 1.6.1.3 (includes only new changes)

This update is a minor update to the changes made in the previous update. Changes include:
-Fixes for “Rise of the Mercenaries” expansion:
-Fixed minor typo in campagin briefing
-Minor adjustments to AI resources in m1v1
-Adjusted Tech level so Ordos Palace can no longer be constructed (should be exclusive to House Ordos).
-Adjustments made to strings file in preparation for “Survival Mode”
-Added instruction manual written by Gruntmods Studios, completely written from scratch for this version of the game
-Added preview of the new Custom Campagin Creation Tutorial that will be provided with the finished version of the Rise of the Mercenaries expansion.
-Removed “Menu Editor” and “User Interface Table Editor” folders in D2K+, and added “Table Editor (UIB) folder” since the one tool now works on all UIB files.
-Fixed version number displayed in menu to be accurate

I have included both the regular update and the combined update below. If you have no idea which patch to install, choose the combined patch.
Combined Update 1.6.1.2 (includes all previous patches as well)
Update 1.6.1.2 (includes only new changes)

This update is a beta test for the latest update to Dune 2000 Gruntmods Edition. Changes include:
-Fixed text.uib so that the string editor can read it properly
-Fixed Desktop Shortcut
-Removed “version” txt and XML files. Version is now tracked by registry key.
-Added support for playing as subhouses with MVI’s Sub House fix
-Added option to install .net framework 3.5 after main installer has finished, user will be prompted to download the package if they select yes (Windows 8 Users will not receive this option even if it is selected during installation).
-Updated ReadMe File to differentiate between the Westwood ReadMe
-Added option to install updated D2K+ components
-Icons changed for installer and uninstaller
-Updated design of patch program
-Added Launcher
-Will automatically launch the game as administrator
-Shows the installed version of the game and the version available on the server
-Allows you update to the latest version of the game with 1 click
-Displays news related to the game and upcoming releases
-Added the first mission of the expansion “Rise of the Mercenaries”, a thrilling campaign consisting of 3 missions told through the eyes of a mercenary commander.
-Adds new menus to support additional missions, including custom mission briefings and an option to load the campaign from the house select screen.
-Does not replace any existing files, making it 100% compatible with the original game
-String file entries are unique and also do not replace any existing game data
-Added button to select a difficulty when using the Mission Select, this will allow you to play a loaded mission on the difficulty of your choosing (default was Normal)

This is also a test of the new patch system, so if you have an issue with it, please let me know. All feedback is appreciated. More information on Rise of the Mercenaries can be found here.

I have included both the regular patch and the updated combined patch below. In order to ensure that users are installing the most up to date version, I have replaced the previous combined patch with the new one. If you have no idea which patch to install, choose the combined patch.
Combined Patch 1.6.1.1 (includes all previous patches as well)
Patch 1.6.1.1 (includes only new changes)

-Attempts to patch an existing installation of a previous version of Dune 2000: Gruntmods edition all the way to 1.6.1, regardless of current version
-Downloading the new installer is recommended over installing the patch for older versions
-Last version to not include patch notes inside of patch
-Includes use of new auto-patch system, which can intelligently detect the location of your Dune 2000: Gruntmods Edition and update outdated files.
Download Combined Patch 1.6.1

-Added the new D2k+ Campagin Map Editor (Alpha), which allows users to add buildings and units to existing maps
-Added familiar icons for worm spawn, spice bloom, carryall and player start positions to Campagin Map Editor
-Added an Ordos carryall to O4V2, which should help keep player economy high during early-mid game
-Added additional Ordos starting units to O4V2, players now start with 2 siege tanks in their base, along with a small force in front of the smugglers north base
-Added additional Smuggler and Harkonnen starting units to O4V2, starting units guard base locations, which fixes AI behavior and
allows them to defend properly, as well as giving them a dedicated defensive force
-Minor changes to Smuggler and Harkonnen bases in O4V2, northern Smuggler refinery is now completly walled in, small amount of wall
added to bottom of Smuggler western base, Harkonnen barracks replaced with wind trap.
-Changed the Smuggler gun turret outpost into a small Smuggler base in O4V2

Download 1.5.1.3

-Fixed an issue where music was turned off by default
Download 1.5.1.2

-Switched from using patchmaker to a Winrar self extracting archive, allowing patches to be applied to any version of the game

-Patches can be applied to regular versions of the game ( not from Gruntmods) but this is unsupported
-Recreated the Ordos base in O4V2, as players were having difficulty beating the level
-Added ability to revert to any patch released after 1.5.1 (this patch), simply use the installers repair feature and run the patch for the version you want to play
-Found problem with the GruntMods Updater, will be fixed in a future patch
-Added text file with version number so you can manually check if there is a new update