1.21.4 server support

• Block and item display entities now have basic translation handling in 1.19.4->1.19.3 (by EnZaXD)
• Fixed Folia compatibility (by 404Setup)
• Fixed rubberbanding around virtual entity plugins in 1.21.2->1.21
• Fixed some item handling in 1.21.2->1.21
• Fixed player info update list order reading in 1.21.2->1.21 (by Gerrygames)
• Fixed smithing table containers in 1.21.2->1.21
• Fixed recipe removal in 1.21.2->1.21
• Fixed dust_color_transition/dust particle options in custom biome data in 1.21.2->1.21
• Fixed creative clients eating up new item data components in 1.21.2->1.21 and 1.21->1.20.5 (by EnZaXD)
• The darkness effect is now properly mapped to blindness in 1.19->1.18.2 (by EnZaXD)
• Fixed fix-1_13-face-player not working after changing its value and running /viaversion reload (by EnZaXD)

Known issues:

• Picking blocks/entity spawn eggs will not work for 1.21.4 clients. A Paper-platform-specific fix will be looked into, but this might not be fixable otherwise.

If you want to get larger version updates early, consider supporting me via https://viaversion.com/donate. See the previous update notes for more info.

• Fixed issues with creaking entities, some new blocks and particles in 1.21.2->1.21
• Fixed writing of new player info list order in 1.21.2->1.21 (by EnZaXD)
• Fixed painting entity data in 1.21.2->1.21
• Fixed disconnect on join for older 1.20 clients on 1.21.2 servers because of unknown registry
• Fixed empty custom data tags sometimes being removed with creative clients on 1.20.5/1.21 (by EnZaXD)

If you want to get larger version updates early, consider supporting me via https://viaversion.com/donate. See the previous update notes for more info.

1.21.2 server support

• Note that due to major changes in how recipes are sent to the client, the recipe book will not be fully usable for olders clients on 1.21.2+ servers
• Fixed the darkness effect resulting in a black screen in 1.20.5->1.20.3

If you want to get larger version updates early, consider supporting me via https://viaversion.com/donate. See the previous update notes for more info.

• Fixed wind charge trajectories by mapping them to shulker bullets instead of llama spit
• Fixed possible chat validation errors in 1.20.5->1.20.3
• Fixed possible errors with entity equipment in 1.20.5->1.20.3 (by EnZaXD)
• Fixed some missing handling in item hover events in 1.21->1.20.5 and 1.20.5->1.20.3 (by EnZaXD, kennytv)
• Fixed 1.21->1.20.5 custom enchantment formatting
• Fixed backup nbt tags being permanently added to items with creative mode clients in 1.20.5->1.20.3 (by EnZaXD)
• Fixed doubled processing of components in 1.19.4->1.19.3 (by EnZaXD)
• Fixed the totem animation playing for all players in 1.11->1.10 (by EnZaXD)
• Fixed handling of various non-standard data across protocols (by EnZaXD)

If you want to get larger version updates early, including 1.21.2, consider supporting me via https://viaversion.com/donate. See the previous update notes for more info.

• Fixed error from wolves with armor in 1.21->1.20.5
• Fixed crafter disabled slots in 1.21->1.20.5
• Fixed new items in item hover events erroring in 1.21->1.20.5
• Fixed custom armor trim pattern and material handling in 1.20.5->1.20.3
• Fixed an edge case with custom item frame rotation handling in 1.17->1.16.4 (by EnZaXD)
• Fixed an edge case with custom experience orb spawning in 1.14->1.13.2 (by EnZaXD)
• Fixed possible component errors in signs in 1.12->1.11 (by EnZaXD)

If you want to get larger version updates early, consider supporting me via https://viaversion.com/donate. See the previous update notes for more info.

• Added a bedrock-at-y-0 config option to display a full bedrock layer at y 0 in 1.17->1.16 (disabled by default, may cause issues with anticheats)
• Added a sculk-shriekers-to-crying-obsidian config option for an alternate 1.19->1.18.2 block mapping to avoid block breaking issues (by EnZaXD)
• Fixed race condition leading to mapping loading error on startup
• Fixed kicks with shulker boxes from creative mode clients in 1.21->1.20.5
• Fixed issues with enchantment lore and enchantment hints in 1.21->1.20.5, use translatables instead of hardcoded numbers in added enchantment lore in older protocols (by kennytv and EnZaXD)
• Fixed attribute modifiers rewriting within containers in show_item components (by EnZaXD)
• Fixed block predicate conversion in 1.20.5->1.20.3 (by EnZaXD)
• Fixed falling blocks in 1.20.3->1.20.2 (by EnZaXD)
• Tridents and banner pattern items show the correct 1.21 rarity in 1.21->1.20.5 (by EnZaXD)
• Fixup handling of attribute keeping on respawn in 1.16->1.15.2 (by EnZaXD)
• Fixed translatable handling in lore conversion in 1.14->1.13.2 (by EnZaXD)
• Fixed missing advancement component rewriting (by EnZaXD)

• Fixed sometimes wrong enchantment remapping in 1.21->1.20.5
• Fixed certain item interactions in 1.21->1.20.5 like placing boats or throwing potions (by EnZaXD)
• Fixed handling of maps containing 1.21 trial chamber markers
• Handle translatables in the new item name item data component in 1.21->1.20.5
• Fixed wrong client side charged state of a crossbow in 1.20.5->1.20.3
• Rewrite translatabales in inventory title names in 1.20->1.19.4 (by EnZaXD)
• Fixed disconnects due to missing tags with certain older clients on 1.20.5+ servers
• Fixed infinite effect duration handling in 1.19.4->1.19.3

If you want to get larger version updates early, consider supporting me via https://viaversion.com/donate. See the previous update notes for more info.

1.21 server support!

Java 17 requirement

• See https://docs.papermc.io/misc/java-install on how to update your Java version
• Even Minecraft 1.8 is mostly able to run on Java 17, although for a better experience you should use a fork that fixes smaller issues
• Some older versions require the Paper.IgnoreJavaVersion system property to be set (-DPaper.IgnoreJavaVersion=true as a startup flag), but run perfectly fine using Java 17
• If all else fails, use the Java 8 compatibility builds we provide at risk of not receiving support for issues it could cause - you should not make yourself depend on these too much, they will generally only be updated on releases

Fixes

• Added new config option to suppress emulation warnings (by EnZaXD)
• Fixed horse inventories in 1.20.5->1.20.3
• Fixed llama carpet/horse armor display in 1.20.5->1.20.3 (by EnZaXD)
• Slightly improved item comparison in 1.20.5->1.20.3 by removing empty tags
• Fixed sniffer entity data errors in 1.19.4->1.19.3
• Fixed UPDATE_LISTED player profile update in 1.19.3->1.19.1 (by EnZaXD)
• Emulate recovery compass using lodestone compass in 1.19->1.18.2 (by EnZaXD)
• Fixup respawning throwing errors sometimes in 1.19->1.18.2 (by EnZaXD)
• Fixed display of player heads without ids in 1.20.2->1.20 (by Pantera07)
• Added missing handling of inlined block states in block state particles (by EnZaXD)
• Added missing translations in legacy protocols (by EnZaXD)
• Fixed client side damage on cancelled block placement in 1.11->1.10
• Small fixes to edge case in data parsing in various versions (by EnZaXD)

If you want to get larger version updates early, consider supporting me via https://viaversion.com/donate. See the previous update notes for more info.

Remember, the release for 1.21 will require Java 17!

More 1.20.5 fixes! Hopefully the last of their sort

• Fixed entity effect particle colors (by EnZaXD)
• Fixed criteria handling for custom enchantments in 1.20.2->1.20
• Fixed player head handling
• Fixed (custom) banner handling
• Invalid heightmap tags are now ignored in 1.17->1.16 (by EnZaXD)
• Updated 1.10 red nether brick item name to match vanilla name (by EnZaXD)

If you want to get larger version updates early, consider supporting me via https://viaversion.com/donate. See the previous update notes for more info.

• Fixed click container button handling (by Gerrygames)
• Fixed handling of new 1.20.5 banners
• Fixed translatable handling (by EnZaXD)
• Fixed entity effect reading below 1.20.2
• Fixed advacements display in 1.20.2->1.20 (with help from Krakenied)
• Fixed listener registration on 1.8 servers
• Fixed issues with creative mode ghost items
• Paper servers now skip jar remapping of ViaVersion

If you want to get larger version updates early, consider supporting me via https://viaversion.com/donate. See the previous update notes for more info.