Arqade Asked by user71847 on July 27, 2020
I have quite a bit of old minecraft worlds lying around. With the new launcher, I understand I can create profiles for older versions of minecraft, give them their own folders, and copy the saves over to these.
I don’t want to load a save with a newer version than it was made. That usually gives ugly boundaries in world gen, or flips doors, or break things in other ways. I understand loading a newer world with an older version is even more likely to break things.
I do of course make backups, but I don’t want to try every version of Minecraft for every save that I have. Is there a quick way I can find out which version of Minecraft a world was originally created in and/or last saved in?
In the game, use this command:
/data get entity @s DataVersion
This will show a number that indicates the data version.
You can see which client version is associated with that data version by checking the wiki here: https://minecraft.gamepedia.com/Data_version#List_of_data_versions
Answered by boot13 on July 27, 2020
Yes, you can find it based on the "DataVersion" stored in the stats or advancements JSON files. Check the wiki's data version page to see which client version the data version corresponds to.
The easiest way I found to do it is by searching the advancements file for the world, for example:
$ grep DataVersion ~/".minecraft/saves/New World/advancements"/*.json
"DataVersion": 1976
Data version 1976 corresponds with client version Java Edition 1.14.4.
Answered by wjandrea on July 27, 2020
As of now, underneath the world's name, original name, an last time played, it tells you the base gamemode, if there are cheats or not, and the version.
Answered by SuperNarwhals095 on July 27, 2020
A bit late, but you can use the last date the file was modified, and check it with the update history.
Answered by memester on July 27, 2020
As mentioned by Cin316
this is not possible as nothing about the MC version is saved in the file.
However an alternative moving forward is to put the version in your save name. so "My world 1.7.2" by doing this you will be creating your own metadata as it were so you can keep track of your saves.
I understand this doesn't help with already created worlds unless you know the version but it will help you with anything you create from now
Answered by Flaunting on July 27, 2020
Unfortunately, the game does not record which version of Minecraft a world was created in. Neither Minecraft nor any third party utilities will be able to find this information. Sorry to bring bad news. :(
Answered by Cin316 on July 27, 2020
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