The other night I was running tests to see if my laptop could use a Mod pack to join a server (sadly the result is not). Since the instructions that were provided for me to try and join the server required Feed The Beast I download it's launcher and opened up the Minecraft Launcher just to confirm my Username.
At the top of the launcher I had this message
You are running an old version of Java. Please consider using the new Minecraft installer. which doesn't require Java, as it may make your game faster.
When I clicked the link it opened up a new tab in my browser and wanted to download a Minecraft Launcher .msi
file. I didn't at the time.
Now I have 2 installs of Minecraft, one on my laptop (Aura) which I use for getting updates and one on my Main Computer (C.C) which doesn't connect to the internet (when I do updates I normally wipe the .minecraft folder on C.C and copy Aura's), with that I don't update Java on C.C unless I really have to (as was the case when I upgraded to Java 7 when I was installing mods, prior I was running Java 6).
Now the idea of updating the Launcher on C.C to make Minecraft faster sounds good to me, means I can add more mods, however what I don't get is how a different launcher makes Minecraft itself faster, I was under the impression the launcher closed when Minecraft started and if Minecraft was shut down properly it restarts the launcher.
So I am wondering, How does a Launcher which doesn't use Java make Minecraft run faster?
Best Answer
First of all, the new "launcher" is just a native wrapper arround the old java-based one
Source: Mojang post on the subject
However, the wrapper downloads it's own JRE to use (as of this writing, it is oracle Java 8), which can cause improvements for users who were running older, and possibly 32-bit java environments.