How to remove the "You are running an old version of the launcher" message in the Minecraft Launcher

Solution 1:

I assume, you are running the game on windows. Do not run the minecraft.exe file. minecraft.exe has a hardcoded bootstrap version number (5 I believe) and launcher will show the warning you mentioned for any bootstrap version below 100 if your OS is windows 8 and above.

Instead

1. create a shortcut to %appdata%\.minecraft\launcher.jar

2. Rename your existing Minecraft.exe to minecraft.dll so you don't run it again. this way you can keep the icon too.

3. modify shortcut you created in item 1 and change its icon to minecraft.dll created in item 2

4. run the game using the new shortcut and message will not showup

Solution 2:

There is no way to disable it, it is a warning that the application is outdated and not recommended anymore. It may become unstable later on, so upgrading is a good idea. While the new launcher might not be your favorite, it does everything the old one can and more.