Minecraft Java Edition 1.19.1 Pre-Release 4 changelog

We've now released 1.19.1 pre-release 4. This pre-release fixes an exploit found regarding contextual chat evidence when creating a Player Report.

TECHNICAL CHANGES IN 1.19.1 PRE-RELEASE 4

• Custom servers can hide player chat messages from display via a new network packet
  • This does not delete player chat messages from chat logs
• Insecure chat messages logged in the server are prefixed with a [Not Secure] tag
• The order of chat messages are now cryptographically verified
  • This will be used for validating the context of chat messages for Player Reports

FIXED BUGS IN 1.19.1 PRE-RELEASE 4

• MC-253743 - The server console doesn’t state if chat messages aren’t secure or have been modified
• MC-253813 - Chat commands with entity selectors often reported as “This message is not secure”

GET THE PRE-RELEASE

Pre-releases are available for Minecraft: Java Edition. To install the pre-release, open up the Minecraft Launcher and enable snapshots in the "Installations" tab.

Pre-releases can corrupt your world, so please make a backup and/or run them in a different folder from your main worlds.

Cross-platform server jar:

• Minecraft server jar

Report bugs here:

• Minecraft issue tracker!

Want to give feedback?

• Head over to our feedback website or come chat with us about it on the official Minecraft Discord.