Wanna change your version of Minecraft?! Yes?! Just turn this program and choose version what you want! This is it! You have all public versions of Minecraft! Just look at it! It's really helpful! This the easiest way to change your version of Minecraf!
It's made in Java and it works on Windows, Linux and Mac!
Still need to do layout and backup system, but rest is working great If you get ErrorLog please send me it on my email or via private messages on forum.
The Minecraft community in general isn't about "respecting and caring" either. It largely consists of narcissistic children who disregard those other than themselves and like to spout anger, abuse, troll and flame. It is also why any competent multiplayer builder either owns a private server or one where build allowance requires in-depth vetting. If Minecraft was about "respecting and caring" these measures would clearly not be necessary.