Minecraft: Java Edition ยท Patch release
Minecraft 1.18.1
1.18.1 is the release that fixed Log4Shell, the critical remote code execution hole in log4j2 that a chat message could trigger. It also fixed eight other issues and changed how fog is drawn.
- Released
- Server needs
- Java 17
- Protocol
- 757
Seven days free, no card. Pick 1.18.1 when you create the server, or switch an existing one from the panel.
What changed in Minecraft 1.18.1
The fixes and changes of this release.
- Fixed the critical log4j2 remote code execution exploit
- Eight other issues fixed
- World fog now starts farther away from the player
- Fog is applied as a cylinder instead of a sphere
- Compatible with 1.18 servers
Gameplay
- World fog now starts farther away from the player
- Fog is applied to a cylindrical volume instead of a spherical one
Commands and technical
- Fixed observer blocks being falsely activated by /clone
Running a Minecraft 1.18.1 server
What the release means for whoever runs the server.
- Requires Java SE 17
- Protocol version 757
- Compatible with 1.18 servers
- Fixes the log4j2 exploit that let attackers run code via logged strings
- The release that fixed Log4Shell
- Fixed timeouts on low bandwidth connections
- Fixed beacon power not persisting across a world reload
Before you update a world: take a backup. A world opened in 1.18.1 cannot be opened in an older version again. How backups work here.
1.18.1 on FadeHost
- The right Java, set for you
- A 1.18.1 server needs Java 17, and the panel starts it with a Java that fits. Nothing to install, nothing to pick.
- Server software for 1.18.1
- PaperPurpurSpigotVanillaFabricForge
- Who can join
- Players on 1.18.1 and on 1.18: the network protocol is the same.
Questions about 1.18.1
When was Minecraft 1.18.1 released?
Minecraft: Java Edition 1.18.1 was released on December 10, 2021.
What Java version does a Minecraft 1.18.1 server need?
Java 17. On FadeHost the server starts with the right Java for its Minecraft version on its own, so there is nothing to install or switch.
What did Minecraft 1.18.1 change?
1.18.1 is the release that fixed Log4Shell, the critical remote code execution hole in log4j2 that a chat message could trigger. It also fixed eight other issues and changed how fog is drawn.
Can players on another version join a 1.18.1 server?
Players on 1.18 can: the network protocol (757) is the same. Any other version has to match the server, unless a Paper server runs plugins such as ViaVersion and ViaBackwards.
Can I update my world to Minecraft 1.18.1?
Yes. Take a backup, switch the server to 1.18.1 and start it: the world is converted on the first boot. A world opened in 1.18.1 cannot be opened in an older version again, so keep the backup until you are sure.
How do I start a Minecraft 1.18.1 server?
Create a server on FadeHost and pick 1.18.1 in the software list: Paper, Purpur, Spigot, Vanilla, Fabric and Forge are there for this version. It is online in about a minute. The free tier runs a 2 GB server at no cost, and a paid server is sized to the RAM you need.
The release before
Minecraft 1.18 Caves & Cliffs: Part II
November 30, 2021
The release after
Minecraft 1.18.2
February 28, 2022
Read on
Change a server's version
Version, software and loader build are one setting in the panel.
Java version errors
What the wrong Java looks like in the console, and why it does not happen here.
RAM calculator
How much memory a server needs, sized from servers measured on our nodes.
Every Minecraft version
All releases, what each one added and the Java it needs.
Release facts from the Minecraft Wiki:Java Edition 1.18.1. Minecraft is a trademark of Mojang; FadeHost is not affiliated with Mojang or Microsoft.