When loading an old world in newer Versions of the game, the warning message: "Do you really want to load this world?" no longer appears.
In the past, this message has prevented many old worlds of being upgraded to newer versions by mistake, when the player prefers to keep these worlds in older versions
The screenshot provided shows an example of the message, which no longer appears in 1.19+
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Comments 3
I understand that new versions are able to access and change old chunks adjacent to new ones to minimize chunk errors and prevent corruptions. However, this confirmation message is also useful, in case you don't want to upgrade your world by mistake. The possibility of creating a backup was useful as well
Thank you for your report!
We're tracking this issue in MC-227787, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
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This is because it has been ensured that there will be no problems in upgrading to the new version, so there will be no warnings.