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Contributor guide for feature flag usage

A-Cross-CuttingImpacts the entire engineImpacts the entire engine

C-Code-QualityA section of code that is hard to understand or changeA section of code that is hard to understand or change

C-DependenciesA change to the crates that Bevy depends onA change to the crates that Bevy depends on

C-DocsAn addition or correction to our documentationAn addition or correction to our documentation

S-Needs-DesignThis issue requires design work to think about how it would best be accomplishedThis issue requires design work to think about how it would best be accomplished

Status: Open.

#20867 In bevyengine/bevy;

· atlv24 opened on Sep 4, 2025

Make Feathers only add InputDispatchPlugin when it's not already added

A-UIGraphical user interfaces, styles, layouts, and widgetsGraphical user interfaces, styles, layouts, and widgets

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

C-UsabilityA targeted quality-of-life change that makes Bevy easier to useA targeted quality-of-life change that makes Bevy easier to use

D-StraightforwardSimple bug fixes and API improvements, docs, test and examplesSimple bug fixes and API improvements, docs, test and examples

S-Ready-For-ImplementationThis issue is ready for an implementation PR. Go for it!This issue is ready for an implementation PR. Go for it!

Status: Open.

#21111 In bevyengine/bevy;

· janhohenheim opened on Sep 18, 2025

SpotLight / PointLight artifacts in FogVolume

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#18371 In bevyengine/bevy;

· TimiSillman opened on Mar 17, 2025

ForwardDecal: Allow custom alpha mode and fix using with OIT

A-RenderingDrawing game state to the screenDrawing game state to the screen

D-ShadersThis code uses GPU shader languagesThis code uses GPU shader languages

S-Needs-ReviewNeeds reviewer attention (from anyone!) to move forwardNeeds reviewer attention (from anyone!) to move forward

Status: Open (in progress).

bevyengine/bevynumber 21909

#21909 In bevyengine/bevy;

· beicause opened on Nov 22, 2025

Performance regression since resource as components

A-ECSEntities, components, systems, and eventsEntities, components, systems, and events

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

C-PerformanceA change motivated by improving speed, memory usage or compile timesA change motivated by improving speed, memory usage or compile times

P-HighThis is particularly urgent, and deserves immediate attentionThis is particularly urgent, and deserves immediate attention

S-Needs-TestingTesting must be done before this is safe to mergeTesting must be done before this is safe to merge

Status: Open.

#23039 In bevyengine/bevy;

· mockersf opened on Feb 18, 2026

Motion blur broken on WebGL and WebGPU

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

P-RegressionFunctionality that used to work but no longer does. Add a test for this!Functionality that used to work but no longer does. Add a test for this!

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#23061 In bevyengine/bevy;

· greeble-dev opened on Feb 19, 2026

Performance regression since changelists for mesh specialization/queueing

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

C-PerformanceA change motivated by improving speed, memory usage or compile timesA change motivated by improving speed, memory usage or compile times

S-Needs-DesignThis issue requires design work to think about how it would best be accomplishedThis issue requires design work to think about how it would best be accomplished

Status: Open.

#23114 In bevyengine/bevy;

· mockersf opened on Feb 22, 2026

Occlusion culling example rendering error

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#23108 In bevyengine/bevy;

· adsick opened on Feb 22, 2026

Incorrect materials applied when over 65535 instances

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#23128 In bevyengine/bevy;

· DGriffin91 opened on Feb 24, 2026

bevy_image::DynamicTextureAtlasBuilder: Add texture extrusion support

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-FeatureA new feature, making something new possibleA new feature, making something new possible

Status: Open.

#23131 In bevyengine/bevy;

· ickshonpe opened on Feb 24, 2026

Fix depth prepass with msaa on webgpu

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

O-WebSpecific to web (WASM) buildsSpecific to web (WASM) builds

O-WebGPUSpecific to the WebGPU render APISpecific to the WebGPU render API

S-Ready-For-Final-ReviewThis PR has been approved by the community. It's ready for a maintainer to consider merging itThis PR has been approved by the community. It's ready for a maintainer to consider merging it

Status: Open (in progress).

bevyengine/bevynumber 22531

#22531 In bevyengine/bevy;

· beicause opened on Jan 15, 2026

Bistro scene flashes on Vulkan

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

D-ComplexQuite challenging from either a design or technical perspective. Ask for help!Quite challenging from either a design or technical perspective. Ask for help!

D-Domain-ExpertRequires deep knowledge in a given domainRequires deep knowledge in a given domain

P-RegressionFunctionality that used to work but no longer does. Add a test for this!Functionality that used to work but no longer does. Add a test for this!

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#23183 In bevyengine/bevy;

· DGriffin91 opened on Mar 2, 2026

SMAA flickering

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

P-RegressionFunctionality that used to work but no longer does. Add a test for this!Functionality that used to work but no longer does. Add a test for this!

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#23143 In bevyengine/bevy;

· ChristopherBiscardi opened on Feb 25, 2026

3d testbed crashes on windows

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

P-CrashA sudden unexpected crashA sudden unexpected crash

P-RegressionFunctionality that used to work but no longer does. Add a test for this!Functionality that used to work but no longer does. Add a test for this!

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#23215 In bevyengine/bevy;

· mockersf opened on Mar 4, 2026

light_probe_blending crashes on DX12: Map buffer failed

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

O-DX12Specific to the DX12 render APISpecific to the DX12 render API

P-RegressionFunctionality that used to work but no longer does. Add a test for this!Functionality that used to work but no longer does. Add a test for this!

S-Needs-TestingTesting must be done before this is safe to mergeTesting must be done before this is safe to merge

Status: Open.

#23254 In bevyengine/bevy;

· mockersf opened on Mar 7, 2026

Fix: support RenderLayer filtering for lights

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

P-RegressionFunctionality that used to work but no longer does. Add a test for this!Functionality that used to work but no longer does. Add a test for this!

S-Needs-ReviewNeeds reviewer attention (from anyone!) to move forwardNeeds reviewer attention (from anyone!) to move forward

Status: Open (in progress).

bevyengine/bevynumber 23265

#23265 In bevyengine/bevy;

· pauliusuza opened on Mar 8, 2026

example custom_shader_instancing is broken since Multi-draw sorted render phases

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

P-RegressionFunctionality that used to work but no longer does. Add a test for this!Functionality that used to work but no longer does. Add a test for this!

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#23301 In bevyengine/bevy;

· mockersf opened on Mar 10, 2026

UiWidgetsPlugins and InputDispatchPlugin are now in DefaultPlugins

A-UIGraphical user interfaces, styles, layouts, and widgetsGraphical user interfaces, styles, layouts, and widgets

C-UsabilityA targeted quality-of-life change that makes Bevy easier to useA targeted quality-of-life change that makes Bevy easier to use

M-Migration-GuideA breaking change to Bevy's public API that needs to be noted in a migration guideA breaking change to Bevy's public API that needs to be noted in a migration guide

S-Waiting-on-AuthorThe author needs to make changes or address concerns before this can be mergedThe author needs to make changes or address concerns before this can be merged

Status: Open (in progress).

bevyengine/bevynumber 23346

#23346 In bevyengine/bevy;

· micttyoid opened on Mar 13, 2026

Fixed cluster sampling issues for volumetric point and spot lights

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

D-StraightforwardSimple bug fixes and API improvements, docs, test and examplesSimple bug fixes and API improvements, docs, test and examples

S-Needs-ReviewNeeds reviewer attention (from anyone!) to move forwardNeeds reviewer attention (from anyone!) to move forward

X-UncontroversialThis work is generally agreed uponThis work is generally agreed upon

Status: Open (in progress).

bevyengine/bevynumber 23387

#23387 In bevyengine/bevy;

· JeroenHoogers opened on Mar 16, 2026

Fix #22574: fix volumetric fog back-face intersection artifacts

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

D-StraightforwardSimple bug fixes and API improvements, docs, test and examplesSimple bug fixes and API improvements, docs, test and examples

S-Needs-ReviewNeeds reviewer attention (from anyone!) to move forwardNeeds reviewer attention (from anyone!) to move forward

Status: Open (in progress).

bevyengine/bevynumber 23406

#23406 In bevyengine/bevy;

· joaoconceicao12 opened on Mar 18, 2026

Rendering broken in iOS simulator

A-RenderingDrawing game state to the screenDrawing game state to the screen

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

O-iOSSpecific to the iOS mobile operating systemSpecific to the iOS mobile operating system

P-RegressionFunctionality that used to work but no longer does. Add a test for this!Functionality that used to work but no longer does. Add a test for this!

S-Needs-DesignThis issue requires design work to think about how it would best be accomplishedThis issue requires design work to think about how it would best be accomplished

Status: Open.

#23428 In bevyengine/bevy;

· rparrett opened on Mar 19, 2026

BRP world.list_components doesn't work for non-entity specified

A-Dev-ToolsTools used to debug Bevy applications.Tools used to debug Bevy applications.

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#23451 In bevyengine/bevy;

· Zeophlite opened on Mar 21, 2026

Add BRP to render app

A-Dev-ToolsTools used to debug Bevy applications.Tools used to debug Bevy applications.

C-FeatureA new feature, making something new possibleA new feature, making something new possible

D-ModestA "normal" level of difficulty; suitable for simple features or challenging fixesA "normal" level of difficulty; suitable for simple features or challenging fixes

S-Needs-ReviewNeeds reviewer attention (from anyone!) to move forwardNeeds reviewer attention (from anyone!) to move forward

Status: Open (in progress).

bevyengine/bevynumber 23446

#23446 In bevyengine/bevy;

· Zeophlite opened on Mar 21, 2026

world_query_get_50000_entities_* regressed after exposing more data from FilteredAccess

A-ECSEntities, components, systems, and eventsEntities, components, systems, and events

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

C-PerformanceA change motivated by improving speed, memory usage or compile timesA change motivated by improving speed, memory usage or compile times

P-RegressionFunctionality that used to work but no longer does. Add a test for this!Functionality that used to work but no longer does. Add a test for this!

S-Needs-InvestigationThis issue requires detective work to figure out what's going wrongThis issue requires detective work to figure out what's going wrong

Status: Open.

#23464 In bevyengine/bevy;

· mockersf opened on Mar 22, 2026

glTF texture handles shift when image loading fails, assigning wrong textures to materials

A-AssetsLoad files from disk to use for things like images, models, and soundsLoad files from disk to use for things like images, models, and sounds

C-BugAn unexpected or incorrect behaviorAn unexpected or incorrect behavior

Status: Open.

#23465 In bevyengine/bevy;

· Elogain opened on Mar 22, 2026