I have many batch files to start minecraft with command line output. All of them are broken by the new launcher. This is because the old start path (net.minecraft.launcherframe) has been replaced with a new one (net.minecraft.bootstrap.Bootstart). This is a minor annoyance, but can you provide backwards compatibility by having it accept the old path too? (It could just redirect).

The batch file:

java -Xms1G -Xmx1G -cp minecraft.jar net.minecraft.LauncherFrame