I've installed new release of minecraft 1.13, and when I tried to load an world minecraft told me "don't forget to backup the world, because it is an snapshot".
Linked issues
Attachments
Comments

I've installed new release of minecraft 1.13, and when I tried to load an world minecraft told me "don't forget to backup the world, because it is an snapshot".
Tester Testowy
(Unassigned)
Unconfirmed
Minecraft 1.13
Retrieved
Thank you for your report!
However, this issue is a Duplicate of MC-133942.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Customer Support – 📖 Game Wiki