I don't know for sure, but maybe they were just uneeded in that version or notch was testing something, or possibly just trying to see if they were nessecary for the game to run and work properly.
META-INF is only necessary if you want to be able to directly run a jar; at the least, it has a file which tells the JVM which class is the "main" class. Mojang also adds class signatures here which is why you need to delete it when manually installing mods; either way, the game depends on another program to launch it and the location of the "main" class is part of the launch commands (trying to directly run the game, at least newer versions, does nothing, not even an error unless META-INF is deleted, then the JVM complains that it is invalid).
So why did you need to update the version of rd 132211, if it does not have these files, on August 6, 2013?Or anyway did the Rd versions need to be updated due to their instability?Minecraft Wiki:https://minecraft.gamepedia.com/Missing_launcher_versions
Version Rd-132211.
I noticed that there are no META INF files in this version.So,why?
I don't know for sure, but maybe they were just uneeded in that version or notch was testing something, or possibly just trying to see if they were nessecary for the game to run and work properly.
META-INF is only necessary if you want to be able to directly run a jar; at the least, it has a file which tells the JVM which class is the "main" class. Mojang also adds class signatures here which is why you need to delete it when manually installing mods; either way, the game depends on another program to launch it and the location of the "main" class is part of the launch commands (trying to directly run the game, at least newer versions, does nothing, not even an error unless META-INF is deleted, then the JVM complains that it is invalid).
TheMasterCaver's First World - possibly the most caved-out world in Minecraft history - includes world download.
TheMasterCaver's World - my own version of Minecraft largely based on my views of how the game should have evolved since 1.6.4.
Why do I still play in 1.6.4?
So why did you need to update the version of rd 132211, if it does not have these files, on August 6, 2013?Or anyway did the Rd versions need to be updated due to their instability?Minecraft Wiki:https://minecraft.gamepedia.com/Missing_launcher_versions