Minecraft: Java Edition ยท Patch release

Minecraft 1.17.1

1.17.1 fixed 49 issues including ghost block exploits and world generation crashes. It is the last version to require Java 16, since 1.18 moved to Java 17.

Released
Server needs
Java 16
Protocol
756
Start a 1.17.1 serverStart a free server

Seven days free, no card. Pick 1.17.1 when you create the server, or switch an existing one from the panel.

A patch of

Minecraft 1.17 Caves & Cliffs: Part I

Caves & Cliffs: Part I delivered the blocks and mobs half of the update, with copper, deepslate, amethyst, candles, axolotls, glow squid and goats.

Everything 1.17 added

What changed in Minecraft 1.17.1

The fixes and changes of this release.

  • 49 issues fixed
  • Drowned drop copper ingots 11 percent of the time, up from 5
  • Enchantment levels capped at 255
  • Blue axolotls only appear through breeding
  • Last version to require Java 16

Blocks and items

  • Powder snow fills cauldrons twice as fast

Mobs

  • Blue axolotls now only appear through breeding
  • Drowned copper ingot drop rate raised from 5 percent to 11 percent
  • Goat breeding produces a screaming variant 2 percent of the time
  • Zombies no longer pick up glow ink sacs

Gameplay

  • Enchantments are capped at level 255

Commands and technical

  • Classical Chinese language added

Running a Minecraft 1.17.1 server

What the release means for whoever runs the server.

  • Requires Java SE 16 and is the last version to do so
  • Protocol version 756
  • Fixed ghost block exploits and world generation crashes

Before you update a world: take a backup. A world opened in 1.17.1 cannot be opened in an older version again. How backups work here.

1.17.1 on FadeHost

The right Java, set for you
A 1.17.1 server needs Java 16, and the panel starts it with a Java that fits. Nothing to install, nothing to pick.
Server software for 1.17.1
PaperPurpurSpigotVanillaFabricForge
Who can join
Players on 1.17.1. Other versions need plugins such as ViaVersion on a Paper server.
Start a 1.17.1 server

Questions about 1.17.1

When was Minecraft 1.17.1 released?

Minecraft: Java Edition 1.17.1 was released on July 6, 2021.

What Java version does a Minecraft 1.17.1 server need?

Java 16. 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 1.17.1 change?

1.17.1 fixed 49 issues including ghost block exploits and world generation crashes. It is the last version to require Java 16, since 1.18 moved to Java 17.

Can players on another version join a 1.17.1 server?

Only players on 1.17.1 itself: its network protocol (756) is its own. A Paper server can let other versions in with plugins such as ViaVersion and ViaBackwards.

Can I update my world to Minecraft 1.17.1?

Yes. Take a backup, switch the server to 1.17.1 and start it: the world is converted on the first boot. A world opened in 1.17.1 cannot be opened in an older version again, so keep the backup until you are sure.

How do I start a Minecraft 1.17.1 server?

Create a server on FadeHost and pick 1.17.1 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 1.17 Caves & Cliffs: Part I

June 8, 2021

The release after

Minecraft 1.18 Caves & Cliffs: Part II

November 30, 2021

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 1.17.1. Minecraft is a trademark of Mojang; FadeHost is not affiliated with Mojang or Microsoft.