Minecraft 1.17.1 Caves & Cliffs update pre-release Patch Notes: Full list of changes revealed

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Minecraft Caves & Cliffs Preview

Players can download the updated datapack here!

Changes in 1.17 Pre-Release 1

• Blue axolotls can now only be obtained through breeding
• Non-screaming goats now have a rare chance to produce a screaming goat when bred
• Status effects on goats now also apply when the goat is jumping or ramming
• Raised the drop rate for copper ingots from Drowned to 11% + 2% per level of looting
• Powder snow now fills cauldrons 2 times faster than before (still pretty slowly, though!)
• Zombies, Zombie Villagers, Husks and Drowned will no longer pick up glow ink sacs

Technical Changes in 1.17 Pre-Release 1

• In case of DNS-based redirection, the client will send the hostname actually used to connect (this restores the pre-1.17 behaviour)

Fixed Bugs in the 1.17.1 Pre-Release 1

• MC-123654 – Sun, moon, and/or clouds are not showing if render distance is below 4
• MC-131290 – Enchantments are saved as shorts, but are loaded as and function with integer values
• MC-156155 – Turkish lira sign (₺) appears as □ in the game
• MC-194736 – Duplicate text mapping for U+00B7
• MC-196999 – U+1FEC is wrong in Minecraft’s font
• MC-213986 – Pistons and dispensers can be used to create ghost blocks using powder snow
• MC-219018 – Ghost items can be created using /item (server doesn’t update client inventory correctly)
• MC-223350 – Loaded chunks sometimes don’t render until the player moves their head slightly
• MC-225816 – Hanging Roots appear large when an item entity
• MC-226461 – Logs can be replaced with stone near lava pools
• MC-226948 – Withers are now affected by potion effects
• MC-227387 – World gen datapacks will likely crash or softlock the game
• MC-227435 – Lag when placing heads of non-existent players when on servers
• MC-227483 – root_system feature config’s codec uses a wrong field
• MC-227520 – Overworld Fossils always generate at bedrock level
• MC-227557 – End portal texture appears stretched after world conversion
• MC-227618 – Small dripleaf is consumed without being placed when used on tall seagrass
• MC-227651 – Group for lapis lazuli ore smelting and blasting recipes is misspelled
• MC-227821 – Client crash when trying to create/edit realm immediately after deleting previous one
• MC-227891 – Ender pearls despawn when player logs out of a server
• MC-228219 – Thrown ender pearls disappear upon entering the exit end portal
• MC-228343 – java.lang.NullPointerException when random_selector default feature isn’t found
• MC-228430 – Very long loading pause while booting the game (“Failed to add PDH Counter”, caused by oshi)
• MC-228828 – Specifying the –server parameter when starting the game, causes the game to crash
• MC-229299 – Blue axolotls can spawn naturally

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.