# Bevy 0.8 release notes

## Meta

- Describe new delegation strategy (#4562)

## App

- fix re-adding a plugin to a plugin group (#2039)

## UI

- depend on dioxus(and bevy)-maintained fork of stretch (taffy) (#4716)
- create font atlas that can contains fonts of any size (#3592)
- Added multi windows check for bevy_ui `Interaction`. (#5225) (we dont yet support multiple windows)
- Improve ergonomics and reduce boilerplate around creating text elements. (#5343)
- don't cull ui nodes that have a rotation (#5389)
- Rename CameraUi (#5234)
- UI - keep color as 4 f32 (#4494)
- Update layout/style when scale factor changes too (#4689)
- Overflow::Hidden doesn't work correctly with scale_factor_override (#3854)
- Fixed bevy_ui touch input (#4099)

## Tasks

- Add global init and get accessors for all newtyped TaskPools (#2250)
- Remove task_pool parameter from par_for_each(_mut) (#4705)
- Profile par_for_each(_mut) tasks (#4711)
- Copy TaskPool resoures to subapps (#4792)

## Windowing

- Add option to center a window (#4999)
- Allow closing windows at runtime (#3575)
- Move the configuration of the WindowPlugin to a resource (#5227)
- Make ScalingMode more flexible (#3253)

## Rendering

### Camera-driven

- Camera Driven Rendering (#4745)
- Camera Driven Viewports (#4898)
- Add "depth_load_op" configuration to 3d Cameras (#4904)
- Refactor `Camera` methods and add viewport rect (#4948)

### Better materials

- Better Materials: AsBindGroup trait and derive, simpler Material trait (#5053)
- Derive AsBindGroup Improvements: Better errors, more options, update examples (#5364)
- Support AsBindGroup for 2d materials as well (#5312)
- add depth_bias to SpecializedMaterial (#4101)

### Spotlights

- Spotlights (#4715)

### Visibility Inheritance

- Visibilty Inheritance, universal ComputedVisibility and RenderLayers support (#5310)

### Mikktspace

- Allow rendering meshes without UV coordinate data. (#5222)
- Minimally fix the known unsoundness in bevy_mikktspace (#5299)
- Generate vertex tangents using mikktspace (#3872)

### Encase

- Migrate to encase from crevice (#4339)

### Fixes

- StorageBuffer uses wrong type to calculate the buffer size. (#4557)
- Fixing confusing near and far fields in Camera (#4457)
- Allow minimising in 2d (#4527)
- WGSL: use correct syntax for matrix access (#5039)
- gltf: do not import IoTaskPool in wasm (#5038)
- fix extract_wireframes (#5301)
- Fix line material shader (#5348)
- add NO_STORAGE_BUFFERS_SUPPORT shaderdef when needed (#4949)
- TextureFormat::R16Unorm support for Image (#5249)
- Recalculate entity aabbs when meshes change (#4944)
- set alpha_mode based on alpha value (#4658)
- Make Wireframe respect visible entities (#4660)
- use const Vec2 in lights cluster and bounding box when possible (#4602)
- bevy_render: Fix KTX2 UASTC format mapping (#4569)
- Use uniform buffer usage for `SkinnedMeshUniform` instead of all usages (#4816)
- Physical viewport calculation fix (#5055)

### Ergonomics

- Fix skinned mesh normal handling in mesh shader (#5095)
- Don't panic when StandardMaterial normal_map hasn't loaded yet (#5307)
- Callable PBR functions (#4939)
- Add reusable shader functions for transforming position/normal/tangent (#4901)
- Add support for removing attributes from meshes. (#5254)
- add a SpatialBundle with visibility and transform components (#5344)
- (Add VisibilityBundle and use it to fix gltfs, scenes, and examples (#5335)
- ExtractResourcePlugin (#3745)
- Add the possibility to create custom 2d orthographic cameras (#4048)
- bevy_render: Add `attributes` and `attributes_mut` methods to `Mesh`. (#3927)
- Enable wgpu profiling spans when using bevy's trace feature (#5182)
- Rework extract_meshes (#4240)
- Add `inverse_projection` and `inverse_view_proj` fields to shader view uniform (#5119)
- Add ViewRangefinder3d to reduce boilerplate when enqueuing standard 3D PhaseItems. (#5014)
- Separate out PBR lighting, shadows, clustered forward, and utils from pbr.wgsl (#4938)
- Separate PBR and tone mapping into 2 functions (#5078)
- Make `MaterialPipelineKey<T>` fields public (#4508)
- simplified API to get NDC from camera and world position (#4041)
- Validate vertex attribute format on insert (#5259)
- Make accessors for mesh vertices and indices public. (#3906)
- diagnostics: meaningful error when graph node has wrong number of inputs (#4924)
- (Bobox214/main) Make the fields of the Material2dKey public (#5212)

### Little features

- Add RegularPolygon and Circle meshes (#3730)
- Add support for vertex colors (#4528)
- Apply vertex colors to ColorMaterial and Mesh2D (#4812)
- add a post-processing example (#4797)
- Use tone mapping in array_texture example (#5131)
- Added `offset` parameter to `TextureAtlas::from_grid_with_padding` (#4836)
- Change default `Image` `FilterMode` to `Linear` (#4465)
- OrthographicProjection: place origin at integer pixel with WindowSize scaling mode (#4085)

### Performance

- Parallel Frustum Culling (#4489)
- Make `RenderStage::Extract` run on the render world (#4402)
- Do not create nor execute render passes which have no phase items to draw (#4643)
- Filter material handles on extraction (#4178)
- Move texture sample out of branch in prepare_normal (#5129)
- Use collect to build mesh attributes (#5255)

### WGPU

- update wgpu to 0.13 (#5168)
- Set naga capabilities corresponding to wgpu features (#4824)

### Performance

- Change check_visibility to use thread-local queues instead of a channel (#4663)
- Allow unbatched render phases to use unstable sorts (#5049)
- Extract resources into their target location (#5271)

## ECS

### Usability

- Add infallible resource getters for `WorldCell` (#4104)
- Add comparison methods to FilteredAccessSet (#4211)
- Add Commands::new_from_entities (#4423)
- Add QueryState::get_single_unchecked_manual and its family (#4841)
- Allow higher order systems (#4833)
- Add ParallelCommands system parameter (#4749)
- Add methods for querying lists of entities. (#4879)
- Add component_id function to World and Components (#5066)
- Add ability to inspect entity's components (#5136)
- add a more helpful error to help debug panicking command on despawned entity (#5198)
- Add attribute to ignore fields of derived labels (#5366)
- exact sized event iterators (#3863)
- Add a clear() method to the EventReader that consumes the iterator (#4693)
- Add helpers to send `Events` from `World` (#5355)
- rename send_default_event to send_event_default on world (#5383)
- Add `assert_is_exclusive_system` function (#5275)
- merge `matches_archetype` and `matches_table` (#4807)
- SystemSet::before and after: take AsSystemLabel (#4503)
- Implement `From<bool>` for `ShouldRun`. (#5306)

### Change detection

- Improve debugging tools for change detection (#4160)
- Add get_change_ticks method to EntityRef and EntityMut (#2539)
- Make change lifespan deterministic and update docs (#3956)

### Iterators

- Update `ExactSizeIterator` impl to support archetypal filters (With, Without) (#5124)
- Allow iter combinations on custom world queries (#5286)
- Improve QueryIter size_hint hints (#4244)
- Add ExactSizeIterator implementation for QueryCombinatonIter (#5148)
- Implement FusedIterator for eligible Iterator types (#4942)
- Add IntoIterator impls for &Query and &mut Query (#4692)

### Fixes

- Apply buffers in `ParamSet` (#4677)
- Bugfix `State::set` transition condition infinite loop (#4890)
- Make derived SystemParam readonly if possible (#4650)

### Performance

- Skip `drop` when `needs_drop` is `false` (#4773)
- Directly copy moved Table components to the target location (#5056)
- Use u32 over usize for ComponentSparseSet indicies (#4723)
- Remove redundant ComponentId in Column (#4855)
- Don't allocate for ComponentDescriptors of non-dynamic component types (#4725)

### Pointerification

- Use lifetimed, type erased pointers in bevy_ecs (#3001)
- Pointerfication followup: Type safety and cleanup (#4621)
- bevy_ptr works in no_std environments (#4760)
- `bevy_ptr` standalone crate (#4653)
- some cleanup for `bevy_ptr` (#4668)

### Internals

- Simplify design for `*Label`s (#4957)

- add more `SAFETY` comments and lint for missing ones in `bevy_ecs` (#4835)
- Replace `ReadOnlyFetch` with `ReadOnlyWorldQuery` (#4626)
- Replace ComponentSparseSet's internals with a Column (#4909)
- remove QF generics from all `Query/State` methods and types (#5170)
- Allows conversion of mutable queries to immutable queries (#5376)
- Fix unsoundness with `Or`/`AnyOf`/`Option` component access' (#4659)
- fix some memory leaks detected by miri (#4959)
- (devil-ira/main) Improve soundness of `CommandQueue` (#4863)
- Remove EntityMut::get_unchecked (#4547)
- remove unnecessary unsafe impl of `Send+Sync` for `ParallelSystemContainer` (#5137)

## Audio

- Add missing audio/ogg file extensions: .oga, .spx (#4703)

## Assets

- Add file metadata to AssetIo (#2123)
- Add `reload_asset` method to AssetServer. (#5106)
- Enable loading textures of unlimited size (#5305)
- Enforce type safe usage of Handle::get (#4794)
- Some minor cleanups of asset_server (#4604)

## Diagnostics

- can specify chrome tracing file (#4618)
- simple tool to compare traces between executions (#4628)
- Add a tracing span for run criteria. (#4709)

## Input

- Add a `release_all` function to `Input`. (#5011)
- Add `Input::reset_all` (#5015)
- Improve Gamepad DPad Button Detection (#5220)
- Fix mouse_clicked check for touches. (#2029)

## Hierarchy

- Hierarchy commandization (#4197)
- Ensure that the parent is always the expected entity (#4717)
- Support returning data out of with_children (#4708)
- Make `Transform` propagation correct in the presence of updated children (#4608)

## Reflection

### Splashy
- bevy_reflect: `ReflectFromPtr` to create `&dyn Reflect` from a `*const ()` (#4475)
- untyped APIs for components and resources (#4447)
- add `#[reflect(Default)]` to create default value for reflected types (#3733)

### Scenes
- add a `SceneBundle` to spawn a scene (#2424)

- Add macro to implement reflect for struct types and migrate glam types (#4540)
- bevy_reflect: Reflect arrays (#4701)
- bevy_reflect: Reflected char (#4790)
- bevy_reflect: Add `GetTypeRegistration` impl for reflected tuples (#4226)
- Add reflection for resources (#5175)
- bevy_reflect: Add `as_reflect` and `as_reflect_mut` (#4350)
- Add apply_or_insert functions to reflected component and resources (#5201)
- (CAD97/main) bevy_reflect: `IntoIter` for `DynamicList` and `DynamicMap` (#4108)
- bevy_reflect: Added `PartialEq` to reflected `f32` & `f64` (#4217)
- create mutable versions of `TypeRegistry` methods (#4484)
- (teoxoy/main) bevy_reflect: Added `get_boxed` method to `reflect_trait` (#4120)
- bevy_reflect: Add `#[reflect(default)]` attribute for `FromReflect` (#4140)
- bevy_reflect: Add statically available type info for reflected types (#4042)
- Improve EntityMap API (#5231)
- bevy_reflect: support map insertion (#5173)
- bevy_reflect: Improve debug formatting for reflected types (#4218)
- bevy_reflect_derive: Tidying up the code (#4712) (big refactor)
- bevy_reflect: Small refactor and default `Reflect` methods (#4739)
- Make `Reflect` safe to implement (#5010)
- `bevy_reflect`: put `serialize` into external `ReflectSerialize` type (#4782)
- remove `Serialize` impl for dyn Array and friends (#4780)
- re-enable `#[derive(TypeUuid)]` for generics (#4118)
- Move primitive type registration into bevy_reflect (#4844)
- implement reflection for more glam types (#5194)
- Make reflect_partial_eq return more accurate results (#5210)
- (james7132/main) remove component and resource suffixes from reflect structs (#5219)
- Export and register `Mat2`. (#5324)

## Docs and Examples

- Basic EntityRef and EntityMut docs (#3388)
- Document `bevy_math` (#4591)
- Add some more documentation to `SystemParam` (#4787)
- Add documentation to the WindowDescriptor struct. (#4764)
- Add documentation comments to `bevy_window` (#4333)
- (superdump/main) Update `axis.rs` docs in `bevy_input` (#4525)
- improve Commands doc comment (#4490)
- Update `touch.rs` docs (#4523)
- Update `system.rs` docs in `bevy_input` (#4524)
- document the single threaded wasm task pool (#4571)
- Update `input.rs` docs in `bevy_input` (#4521)
- Update `keyboard.rs` docs in `bevy_input` (#4517)
- Improve docs and naming for RawWindowHandle functionality (#4335)
- Improve entity and component API docs (#4767)
- linux_dependencies: cleanup NixOS (#5086)
- Add some docs about lowspec rendering (#5091)
- Add 3d shapes example (#4613)
- Add transparency examples (#3695)
- add a 3d lines example (#5319)
- Added example of creating a system from a closure (#4327)
- Update `MouseMotion` and `CursorMoved` docs (#5090)
- Documenting `BufferVec`. (#4673)
- Improve Command(s) docs (#4994)
- Add documentation to `VisibleEntities` and related (#5100)
- docs: Add section about using Tracy for profiling (#4534)
- Add troubleshooting command to miri docs (#5116)
- Document That FloatOrd Implements Hash and Eq Too (#5228)
- improve documentation for macro-generated label types (#5367)
- Documenting `UniformBuffer`, `DynamicUniformBuffer`, `StorageBuffer` and `DynamicStorageBuffer`. (#5223)
- Document `Size` and `UiRect` (#5381)
- Fix `OwningPtr` docs (#5391)
- Document exotic patterns for `Command`s and `Event`s (#4840)
- docs: Full documentation for bevy_asset (#3536)
- Very minor doc formatting changes (#5287)
- Fix typo in Word::get_by_id docs (#5246)
- Fix small typo in example name (#5217)
- Fix markdownlint privileges complaint (#5216)
- fix new clippy lints (#5160)
- Fix typos in bevy_reflect readme (#5134)
- Update shader_material_glsl example to include texture sampling (#5215)
- Remove unused code in game of life shader (#5349)
- (mockersf/main) Make the contributor birbs bounce to the window height! (#5274)
- Cargo `--timings` option has been stabilized. Update profiling.md. (#4850)
- shader examples wording coherence (#4810)
- remove unneeded msaa explicit addition from examples (#4830)
- scene_viewer: Make it possible to disable the animation feature (#4849)
- Default image sampler doc fix (#5047)
- `transparency_3d` example tweaks (#4968)
- many foxes: only change animation once (#5076)
- Doc/module style doc blocks for examples (#4438)
- Rename `transparent_phase` to `opaque_phase` in `wireframe.rs` (#4639)
- update system test example to include using events (#4951)
- Update commented vsync code in example to use present_mode (#4926)
- Fix player number in example game in the ecs_guide (#5098)
- Array texture example (#5077)

## Web

- (MDeiml/staging) Optionally resize Window canvas element to fit parent element (#4726)

## Time

- Update time by sending frame instant through a channel (#4744)
- use elapsed on instant (#4599)
- Make paused timers update `just_finished` on tick (#4445)
- Make `Time::update_with_instant` public for use in tests (#4469)

## Transforms

- Use Affine3A for GlobalTransform to allow any affine transformation (#4379)
- Fix incorrect rotation in `Transform::rotate_around`. (#5300)
- Add helper methods for rotating `Transform`s (#5151)

## Android

- Fixed Android example icon (#4076)
- android - fix issues other than the rendering (#5130)

## Tweaks: Skip

- Bevy release train - add a workflow to manually create a PR updating Bevy version (#3283)
- Add license files to all published crates (#4828)
- Examples metadata in Cargo.toml (#4741)
- Add a fun skinned mesh stress test based on the animated_fox example (#4674)
- Added colors to sprite stress test (#5317)
- Added performance warning when running stress test examples in debug mode (#5029)
- helper tool to build examples in wasm (#4776)
- fixes complaints about missing docs (#4551)
- add benches for simple run criteria (#4196)
- Add a random access get_component benchmark (#4607)
- bench: add `bevy_reflect::{List, Map, Struct}` benchmarks (#3690)
- Add benchmarks for schedule dependency resolution (#4961)
- Wider ECS Benchmarks (#5123)
- Add TextureAtlas stress test based on many_sprites and sprite_sheet examples (#5087)
- (robtfm/main) Adds a "Question" link to the new issue selection (#5169)
- Add standard Bevy boilerplate to README.md (#5191)
- Add Clear Linux OS dependencies (#4852)
- add timeout to miri job in CI (#4743)
- (james7132/debug-unwrap) Added keyboard key to mouse control for scene viewer example (#4411)
- Add the license for the FiraMono font (#3589)
- Add alsa-lib-devel to OpenSUSE dependencies (#4635)
- Introduce tests for `derive(WorldQuery)` (#4625)
- (BoxyUwU/main) Add an example to test small window sizes (#3597)
- Add more tests to `input.rs` (#4522)
- Remove some unused dependencies (#4544)
- Misc dependency improvements (#4545)
- Decouple some dependencies (#3886)
- Update ndk-glue requirement from 0.5 to 0.6 (#3624)
- Update tracing-tracy requirement from 0.8.0 to 0.9.0 (#4786)
- update image to 0.24 (#4121)
- update xshell to 0.2 (#4789)
- Update gilrs to v0.9 (#4848)
- bevy_log: upgrade to tracing-tracy 0.10.0 (#4991)
- update hashbrown to 0.12 (#5035)
- Update `clap` to 3.2 in tools using `value_parser` (#5031)
- Updated `glam` to `0.21`. (#5142)
- Bump peter-evans/create-pull-request from 3 to 4 (#4940)
- Remove the dependency cycles (#5171)
- Update Notify Dependency (#5396)
- Remove `rand` crate from dependency tree (#3992)
- Rename `ElementState` to `ButtonState` (#4314)
- change panicking test to not run on global task pool (#4998)
- Implement `Eq` and `PartialEq` for `MouseScrollUnit` (#5048)
- Let the project page support GitHub's new ability to display open source licenses (#4966)
- Recommend posting new plugins in #crates discord channel (#4956)
- use the default() method in examples instead of Default::default() (#4952)
- Move `Size` to `bevy_ui` (#4285)
- Move `Rect` to `bevy_ui` and rename it to `UiRect` (#4276)
- Document that AppExit can be read by Bevy apps (#4587)
- Update `mouse.rs` docs in `bevy_input` (#4518)
- Split time functionality into bevy_time (#4187)
- Split mesh shader files (#4867)
- Change window position types from tuple to vec (#5276)
- Note that changes to licensing are controversial (#4975)
- Update CONTRIBUTING.md (#4962)
- Remove `.system()` (#4499)
- Converted exclusive systems to parallel systems wherever possible (#2774)
- Make `RunOnce` a non-manual `System` impl (#3922)
- Mark mutable APIs under ECS storage as pub(crate) (#5065)
- Removed world cell from places where split multable access is not needed (#5167)
- Add Events to `bevy_ecs` prelude (#5159)
- Fix torus normals (#4520)
- linux_dependencies: fix NixOS (#5251)
- Change `gamepad.rs` tuples to normal structs (#4519)
- (MDeiml/main) Fix crash when using Duration::MAX (#4900)
- Fix release builds: Move asserts under #[cfg(debug_assertions)] (#4871)
- Fix frame count being a float (#4493)
- fix "unused" warnings when compiling with `render` feature but without `animation` (#4714)
- (hymm/main) Fix Good-First-Issue label in CONTRIBUTING.md (#4979)
- allow unicode license (#5337)
- enable optional dependencies to stay optional (#5023)
- Export anyhow::error for custom asset loaders (#5359)
- run examples on windows (#4437)
- run examples in wasm in CI (#4818)
- Parameterize nightly toolchain in CI (#5330)
- CI tool usage (#3876)
- windows CI: use exact same command to prebuild (#5352)
- remove nightly from CI/bors (#5333)
- Make public macros more robust with $crate (#4655)
- ECS benchmarks organization (#5189)
- Cleanups in diagnostics (#3871)
- Remove redundant `Size` import (#5339)
- remove an unused import in release (#5320)
- Implement `Debug` for `Gamepads` (#5291)
- Update codebase to use `IntoIterator` where possible. (#5269)
- Rename `headless_defaults` example to `no_renderer` for clarity (#5263)
- Enable single-commit option for doc deployment (#5138)
- bevy_reflect: remove `glam` from a test which is active without the glam feature (#5195)
- Disable Vsync for stress tests. (#5187)
- Move `get_short_name` utility method from `bevy_reflect` into `bevy_utils` (#5174)
- Derive default for enums where possible (#5158)
- Remove double blank line from component docs (#5102)
- Remove spirv-reflect from readme (#5192)
- Remove dead `SystemLabelMarker` struct (#5190)
- Derive default on ReportExecutionOrderAmbiguities (#4873)
- Update "C-Bug" label and url in CONTRIBUTING.md (#4880)
- Clippy improvements (#4665)
- Make bug template more beginner-friendly (#4652)
- Rename Color::as_hlsa_f32 to Color::as_hsla_f32 (#4827)
- Remove strong language from CONTRIBUTING.md (#4755)
- Make bevy_app's optional bevy_reflect dependency actually optional (#4846)
- (ManevilleF/staging) Remove markdown dead link check (#4839)
- Reduce code duplication by using QueryIterationCursor in QueryIter (#4733)
- Change path to zld on MacOS fast build example (#4778)
- (MrGVSV/main) Fail to compile on 16-bit platforms (#4736)
- Stop labeling PRs with Needs-Triage (#4686)
- Derive thiserror::Error for HexColorError (again) (#4847)
- GitHub Actions: don't depend on patch versions (#4646)
- Clean up advice on glob imports in style guide (#4644)
- move system_param fetch struct into anonymous scope to avoid name collisions (#4100)
- Remind users to initialize their systems before running them (#3947)
- Tidy up PluginGroupBuilder by moving Plugin index retrieval to it's own function (#4446)
- remove redundant query parameters (#4945)
- Do not bundle the assets from wasm example in the crate (#4895)
- Make AnimationClip::duration return value instead of reference (#4617)
- Move float_ord from bevy_core to bevy_utils (#4189)
- Public access for AnimationClip.duration (#4615)
- Remove unused `CountdownEvent` (#4290)
- bevy_utils: remove hardcoded log level limit (#4580)
- do not check links on docs.github.com (#4578)
- do not impl Component for Task (#4113)
- Remove nonexistent `WgpuResourceDiagnosticsPlugin` (#4541)
- Remove parking_lot dependency from bevy_ecs (#4543)
- Bump Bevy to 0.8.0-dev (#4505)
- Let contributors know it's okay to delete optional template sections (#4498)
- Fix type parameter name conflicts of derive(Bundle) (#4636)
- fix resource not found error message (#5128)
- Fix ron deprecation (#5021)
- fix tracy frame marker placement (after preseting *all* windows) (#4731)
- Fix release workflow (#4903)
- Fix clap for CI (#5005)
- Fix Nix section of linux_dependencies.md (#5050)
- Fix redundant "have" in CONTRIBUTING (#5036)
- Fix broken `WorldCell` test (#5009)
- Fix wasm examples (#4967)
- Fix typo in game_menu.rs (#4977)
- Fix Events example link (#5126)
- Tidy up the code of events (#4713)