PaperMC/Paper

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The most widely used, high performance Minecraft server that aims to fix gameplay and mechanics inconsistencies

Stars: 12.7k
Forks: 3.5k
Open beginner issues: 2
Indexed issues: 502
Avg merge: 1d 21h
Merged PRs (30d): 10

Dominant language: Java
License: No license data
Last GitHub push: Sep 11, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

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501 open issues indexed

PaperMC snapshots repository returns corrupt artifacts Open

resolution: cannot reproduce

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PaperMC/Paper#13987 · 6 comments · Opened Jun 24, 2026
Ambiguity in LivingEntity.getRemoveWhenFarAway() documentation Open

status: accepted version: 26.2

Difficulty 3/5 1-2 days Newbie friendliness 48/100

PaperMC/Paper#13980 · 4 comments · Opened Jun 21, 2026
Ambiguity in Mob.getTarget() functionality Open

status: needs triage version: 26.2

Difficulty 3/5 1-2 days Newbie friendliness 52/100

PaperMC/Paper#13979 · 2 comments · Opened Jun 21, 2026
Soul Speed effect persists after boots break when swapping between two pairs on soul sand Open

status: accepted upstream: vanilla version: 26.1.2

Difficulty 3/5 1-2 days Newbie friendliness 68/100

PaperMC/Paper#13958 · 2 comments · Opened Jun 14, 2026
Expose a stable connection ID across motd, handshake, login and join events Open

scope: api status: accepted

Difficulty 5/5 Over a week Newbie friendliness 35/100

PaperMC/Paper#13921 · 1 comment · 3 reactions · Opened May 31, 2026
--forceUpgrade removed/not implemented in 26.1 Open

status: needs triage

Difficulty 5/5 Over a week Newbie friendliness 25/100

PaperMC/Paper#13920 · 3 comments · Opened May 31, 2026
Save level.dat asynchronously on the I/O thread to avoid blocking the server thread Open

status: needs triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PaperMC/Paper#13902 · 5 comments · Opened May 22, 2026
Add GrindstoneItemEvent Open

status: needs triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PaperMC/Paper#13900 · Opened May 21, 2026
Keys for feature seeds in world configs do not migrate from 1.21.11 to 26.1.2 properly Open

status: accepted version: 26.1.2

Difficulty 3/5 1-2 days Newbie friendliness 48/100

PaperMC/Paper#13899 · 4 comments · Opened May 21, 2026
PlayerInteractEvent is not triggered when entity_interaction_range is increased Open

status: needs triage

Difficulty 3/5 1-2 days Newbie friendliness 58/100

PaperMC/Paper#13895 · Opened May 19, 2026
level-name in server.properties not being input sanitized Open

status: needs triage upstream: vanilla version: 26.1.2

Difficulty 3/5 1-2 days Newbie friendliness 48/100

PaperMC/Paper#13893 · 2 comments · Opened May 18, 2026
Add SpearChargeDismountEvent Open

status: needs triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PaperMC/Paper#13883 · 2 comments · Opened May 14, 2026
Configurable Lava Level Open

status: needs triage

Difficulty 5/5 Over a week Newbie friendliness 45/100

PaperMC/Paper#13878 · 4 comments · Opened May 11, 2026
Mismatched encoding between console and texts got printed results in garbled texts Open

status: needs triage

Difficulty 5/5 Over a week Newbie friendliness 35/100

PaperMC/Paper#13865 · Opened May 6, 2026
Flush memory caches to disk when server is paused (empty-server pause) Open

scope: configuration status: accepted

Difficulty 5/5 Over a week Newbie friendliness 38/100

PaperMC/Paper#13864 · 2 comments · 2 reactions · Opened May 5, 2026
Server crash starting spark background profiler Open

status: needs triage version: 26.1.2

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PaperMC/Paper#13862 · 5 comments · Opened May 5, 2026
ChunkGenerator.ChunkData -> More options Open

status: needs triage

Difficulty 5/5 Over a week Newbie friendliness 45/100

PaperMC/Paper#13860 · Opened May 4, 2026
Datapacks that use custom chest inventory broken on Paper Open

scope: parity status: accepted version: 26.1.2

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PaperMC/Paper#13839 · 3 comments · 4 reactions · Opened Apr 29, 2026
Paper Console shutdown before all logs are written to it Open

priority: low status: accepted version: 26.1.2

Difficulty 3/5 1-2 days Newbie friendliness 45/100

PaperMC/Paper#13837 · Opened Apr 28, 2026
Anti Xray bug on certain chunk formats Open

status: needs triage version: 1.21.11

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PaperMC/Paper#13834 · 1 comment · Opened Apr 27, 2026
Handle end portal creation with PortalCreateEvent Open

status: needs triage

Difficulty 5/5 Over a week Newbie friendliness 38/100

PaperMC/Paper#13832 · 1 comment · Opened Apr 27, 2026
ZombifiedPiglins remain angry indefinitely with `persistentAngerTarget` locked to a dead/removed Mob (1.21.11+, exposed by `SpearUseGoal` friendly-fire) Open

status: needs triage version: 1.21.11

Difficulty 4/5 3-5 days Newbie friendliness 55/100

PaperMC/Paper#13829 · Opened Apr 27, 2026
Add PlayerAdvancementRevokeEvent and PlayerAdvancementCriterionRevokeEvent Open

status: needs triage

Difficulty 4/5 3-5 days Newbie friendliness 52/100

PaperMC/Paper#13799 · Opened Apr 18, 2026
Feature request: add a way to get the picked block/entity on creative Open

status: needs triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PaperMC/Paper#13797 · Opened Apr 17, 2026
NbtAccounterException: Tried to read NBT tag with too high complexity, depth > 512 Open

status: needs triage

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PaperMC/Paper#13795 · 3 comments · Opened Apr 17, 2026
BlockType#isOccluding is incorrectly handled Open

status: accepted

Difficulty 2/5 1-3 hours Newbie friendliness 68/100

PaperMC/Paper#13790 · 5 comments · Opened Apr 14, 2026
Support `despawn-time` for entities in weakly loaded chunks, resolve lag and crashes from weak chunk entity stacking Open

status: needs triage

Difficulty 4/5 3-5 days Newbie friendliness 42/100

PaperMC/Paper#13783 · 4 comments · Opened Apr 13, 2026
Stabbing a block with a spear does not trigger left click event Open

status: accepted version: 26.1.2

Difficulty 3/5 1-2 days Newbie friendliness 72/100

PaperMC/Paper#13779 · Opened Apr 12, 2026
Trial Chamber Vault modifications via datapack not working on paper Open

status: needs triage version: 26.1.1

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PaperMC/Paper#13762 · Opened Apr 7, 2026
BlockDropItemEvent's multi-block structure support doesn't applies to sugarcane/bamboo/cactus/scaffolding Open

status: needs triage version: 1.21.11

Difficulty 3/5 1-2 days Newbie friendliness 48/100

PaperMC/Paper#13761 · 1 comment · Opened Apr 6, 2026
LivingEntity ... add sleep/wakeup Open

status: needs triage

Difficulty 3/5 1-2 days Newbie friendliness 25/100

PaperMC/Paper#13756 · 4 comments · Opened Apr 5, 2026
Migrating world creates 00000000-0000-0000-0000-000000000000.dat player file Open

status: needs triage upstream: vanilla

Difficulty 3/5 1-2 days Newbie friendliness 48/100

PaperMC/Paper#13746 · 8 comments · Opened Apr 4, 2026
Signed messages never have any chat type format in the console Open

status: needs triage version: 1.21.11

Difficulty 4/5 3-5 days Newbie friendliness 52/100

PaperMC/Paper#13738 · 3 comments · Opened Apr 3, 2026
DimensionArgument not suggest worlds created using the API unless rejoin Open

status: accepted version: 1.21.11

Difficulty 4/5 3-5 days Newbie friendliness 50/100

PaperMC/Paper#13737 · 3 comments · Opened Apr 3, 2026
Ghost totem Open

status: needs triage version: 1.21.11

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PaperMC/Paper#13735 · 4 comments · Opened Apr 1, 2026
`CraftItemEvent` does not fire for each item when multiple items are crafted in one click Open

status: needs triage version: 1.21.11

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PaperMC/Paper#13725 · 4 comments · Opened Mar 27, 2026
Tilling dirt with a hoe does not call `EntityChangeBlockEvent` Open

status: accepted version: 1.21.11

Difficulty 3/5 1-2 days Newbie friendliness 65/100

PaperMC/Paper#13721 · 3 comments · Opened Mar 25, 2026
Punching to deflect fireballs doesn't work Open

status: needs triage

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PaperMC/Paper#13718 · 3 comments · Opened Mar 24, 2026
Audience can't return previous dialog after click open_url text in AsyncPlayerConnectionConfigureEvent Open

status: needs triage version: 1.21.11

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PaperMC/Paper#13708 · 3 comments · Opened Mar 17, 2026
Player interact cannot deny block use but allow place Open

status: accepted version: 1.21.11

Difficulty 3/5 1-2 days Newbie friendliness 58/100

PaperMC/Paper#13707 · 1 comment · Opened Mar 16, 2026
Allow Editing PersistentDataContainers for OfflinePlayers Open

status: needs triage

Difficulty 5/5 Over a week Newbie friendliness 35/100

PaperMC/Paper#13699 · 8 comments · 2 reactions · Opened Mar 13, 2026
Merchant menu can resolve the wrong offer Open

status: needs triage upstream: vanilla version: 1.21.11

Difficulty 3/5 1-2 days Newbie friendliness 38/100

PaperMC/Paper#13695 · 2 comments · Opened Mar 10, 2026
Player advancement persistency issue Open

status: needs triage version: 1.21.11

Difficulty 4/5 3-5 days Newbie friendliness 45/100

PaperMC/Paper#13688 · Opened Mar 9, 2026
Add option for EnderMan holding blocks to count in mob cap Open

status: needs triage

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PaperMC/Paper#13684 · Opened Mar 7, 2026
Equivalence between KeyImpl and TypedKeyImpl is not symmetric Open

status: accepted version: 1.21.11

Difficulty 2/5 1-3 hours Newbie friendliness 25/100

PaperMC/Paper#13678 · 1 comment · Opened Mar 4, 2026
Y-coordinate problem with mannequins, gravity, and scale Open

status: needs triage

Difficulty 4/5 3-5 days Newbie friendliness 48/100

PaperMC/Paper#13663 · 6 comments · Opened Feb 27, 2026
Profile event handlers are not being called Open

status: accepted version: 1.21.11

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PaperMC/Paper#13652 · 1 comment · Opened Feb 24, 2026
Cactus Growth Modifier is not implemented Open

status: accepted version: 1.21.11 version: 1.21.5

Difficulty 4/5 3-5 days Newbie friendliness 35/100

PaperMC/Paper#13644 · 1 comment · Opened Feb 21, 2026
Wrong Z axis respawn range Open

status: accepted upstream: vanilla version: 26.1.2

Difficulty 3/5 1-2 days Newbie friendliness 45/100

PaperMC/Paper#13618 · 1 reaction · Opened Feb 8, 2026
packet-limiter action DROP is ignored for book editing Open

status: needs triage

Difficulty 3/5 1-2 days Newbie friendliness 35/100

PaperMC/Paper#13606 · 1 comment · Opened Feb 5, 2026

PaperMC/Paper

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