Minecraft Launcher 1.12.2 and 1.11.2 is the front-end login and downloader for the stand-alone client. He is responsible for free downloading the main Java packages, including minecraft.jar and LWJGL containing the code and game features, such as texture. It also acts as both a basic copy-restriction and bypassable easily forcing the user to access an account paid to perform for the first time. You can use the Minecraft launcher to run versions of Minecraft, however, some versions are not included in the Launcher as Indev, Minecraft 1.10.2.
Free Minecraft Launcher 1.12
Minecraft Launcher 1.12.2 Original
Every time the Minecraft Launcher runs, it checks a specific directory where Minecraft stores its files called .minecraft It checks a file called “launcher_profiles.json” login credentials. If the file does not exist, it is corrupt or no user is logged in, the user must enter a valid Premium account, otherwise the user will be directed to play the demo version or buy the game.
UPDATE: MINECRAFT 1.12 FINALLY HAS BEEN UPDATED
How to update the Minecraft for 1.12:
Download Minecraft Launcher with Multiplayer
Our Minecraft Launcher is only for those people who want to play Minecraft for Free at no extra cost, also facilitating the use of Minecraft Forge API for installing Minecraft Mods, this is a great Launcher, you can download it directly below.
Minecraft Launcher For PC 1.12.2/1.11.2/1.10.2 w/ Multiplayer Download