MC Downgrader is Minecraft’s most popular downgrading tool. Why would anybody use a downgrader? Downgraders are useful for exploring early versions of the game. Thanks to MC Downgrader, players can experience what the very earliest build of Minecraft looked like with just a few clicks.
MC Downgrader is also popular among the modding community. If you accidentally upgraded to the latest version of Minecraft without waiting for your favorite mods to be upgraded, then you might not find the latest patch to be that enjoyable. Instead of using an un-modded version of Minecraft until the modders release a patch, you can downgrade to the earlier version and wait for the upgrade while enjoying your favorite mods.
Before MC Downgrader, the only way to downgrade a Minecraft installation was to uninstall the game completely and then reinstall it with the new patch. Now, with MC Downgrader, downgrading is just a click away, and no technical knowledge is required in order to quickly and easily alter your installation.
One of the most attractive features of MC Downgrader is that it uses binary patch files that have been created by a modder named CyborgDragon. It never downloads .jar files directly from Mojang, which means that players can upgrade or downgrade on the fly without experiencing too many issues.
The MC Downgrader tool promises to give players the following abilities:
-Easy download of patches
-The ability to create multiple backups of the game
-Simple patching and unpatching
Whether you’ve upgraded to the latest version of Minecraft without waiting for a patch, or you’re just nostalgic for the early days of Minecraft, MC Downgrader makes it easy to patch and unpatch your favorite game.
How to install MC Downgrader for Minecraft 1.4.5
Step 1) Find the MC Downgrader download in this official forum thread
Step 2) Run the .exe file
Step 3) Select which version of Minecraft you wish to upgrade or downgrade to, then start playing