[dependabot]

Bumps wgpu from 29.0.4 to 30.0.1.

Changelog

Sourced from wgpu's changelog.

v30.0.1 (2026-08-21)

Bug Fixes

Vulkan

• Stop passing an un-waited fence to vkAcquireNextImageKHR on non-Windows platforms, which triggered VUID-vkAcquireNextImageKHR-fence-10066 validation errors every frame since v30.0.0. By @​ErichDonGubler in #9855.

Metal

• Resolve metal color space constants dynamically. By @​andyleiserson in #9819.

WebGPU

• Upgrade vendored WebGPU bindings and wasm-bindgen to 0.2.127. This fixes a panic “can't access property "info", arg0 is null” when using the WebGPU backend and requestAdapter() fails. By @​beicause in #10034, backported in #10105.

v30.0.0 (2026-07-01)

Major changes

Optional vertex buffer slots

This allows gaps in VertexState's buffers and adds support for unbinding vertex buffers, bringing us in compliance with the WebGPU spec. As a result of this, VertexState's buffers field now has type of &[Option<VertexBufferLayout>]. To migrate, wrap vertex buffer layouts in Some:

  let vertex_state = wgpu::VertexState {
      module: &vs_module,
      entry_point: Some("vs_main"),
      compilation_options: wgpu::PipelineCompilationOptions::default(),
      buffers: &[
-         &vertex_buffer_layout
+         Some(&vertex_buffer_layout)
      ],
  };

By @​teoxoy in #9351.

Integer shader I/O no longer defaults to @interpolate(flat)

To align with the shading language specifications, naga no longer assumes that integer-typed shader I/O should have flat interpolation, i.e., should not be interpolated. Even though flat interpolation is the only choice for integer I/O, it must be still specified explicitly.

WGSL:

 struct FragmentInput {
     @location(0) tex_coord: vec2<f32>,
-    @location(1) index: i32,
+    @location(1) @interpolate(flat) index: i32,
 }
</tr></table> 

... (truncated)

Commits

• 40f4a34 Release v30.0.1
• 5e1084c fix(metal): Resolve some color space constants dynamically (#9819)
• 8bc5e2b Backport "Re-vendor WebGPU bindings (#10034)" to v30. (#10105)
• 42738aa backport: fix: use vk::Fence::null on non-Windows swapchain (#9918)
• 1464540 Remove example warning
• 8bf3e5f Update to v30 (#9790)
• aa2b790 [core] filter native-only features and limits if
• 2ea3a1d [vulkan] advertise DownlevelFlags::SURFACE_VIEW_FORMATS if `VK_KHR_swapchai...
• 69e66d8 add DENO_WEBGPU_STRICT_COMPLIANCE and set it for the CTS job
• 995ee7b add Limits::max_buffers_and_acceleration_structures_per_shader_stage
• Additional commits viewable in compare view

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📝 Summary

Summary by CodeRabbit

• Chores
  • Updated the frontend’s graphics dependency.

The frontend’s base wgpu dependency changes from version 29 to version 30. Its default-features, wgsl, and std settings remain unchanged.

Changes: Frontend dependency

Layer / File(s)	Summary
Update wgpu version crates/rusty2600-frontend/Cargo.toml	The base wgpu dependency changes from version 29 to version 30. Its feature configuration remains unchanged.

Priority: ⬇️ Low

Estimated code review effort: 1 (Trivial) | ~3 minutes

Change: Other

Merge Risk: 🟠 High · up to 31068

The upgrade moves only part of the frontend to wgpu 30, while the egui renderer still uses wgpu 29. As a result, the frontend does not compile. Align the wgpu versions before merging.

### Architecture Summary

Architecture risk: 🔵 Low · up to 31068

The change affects 1 system.

Changed systems: crates

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

• observed — crates (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

• observed — Modified behavior in crates/rusty2600-frontend/Cargo.toml: The base wgpu dependency version changes from 29 to 30; its feature configuration remains unchanged.

Pre-merge checks · 5

Passed checks (5 passed)

Check name	Status	Explanation
Title check		The title clearly and concisely identifies the dependency upgrade from wgpu 29.0.4 to 30.0.1.
Description check		The description directly explains the wgpu dependency upgrade and includes relevant release details.
Docstring Coverage		No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 0…
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

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[coderabbitai]

Actionable comments posted: 1

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• 🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @crates/rusty2600-frontend/Cargo.toml:
- Line 159: Align the base and target-specific wgpu requirements in the frontend
Cargo configuration with the wgpu version used by egui-wgpu, so the device
passed to egui_wgpu::Renderer::new has a compatible type. Update the egui
integration stack to versions supporting wgpu 30, or keep the base dependency on
version 29; ensure all wgpu dependencies resolve to a compatible version.

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• crates/rusty2600-frontend/Cargo.toml

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[github-actions]

Antigravity review (Gemini via Ultra)

Bumps the base wgpu dependency in crates/rusty2600-frontend/Cargo.toml and updates Cargo.lock from 29.0.4 to 30.0.1.

Blocking issues

• **Build failure via type incompatibility with egui-wgpu (Cargo.lock:1194, crates/rusty2600-frontend/Cargo.toml:162, crates/rusty2600-frontend/src/app.rs:529-533): egui-wgpu 0.35 strictly requires wgpu 29. Bumping the frontend crate to wgpu 30 pulls duplicate major versions into the dependency tree and causes compilation to fail immediately when App::build_egui passes &gfx.device and gfx.config.format (wgpu 30) into egui_wgpu::Renderer::new (wgpu 29). This upgrade cannot land without an egui-wgpu release supporting wgpu 30.
• **Incomplete upgrade across target tables (crates/rusty2600-frontend/Cargo.toml:194, crates/rusty2600-frontend/Cargo.toml:229): Only the base [dependencies] entry was changed. Target-specific tables under [target.'cfg(not(target_arch = "wasm32"))'.dependencies] (enabling vulkan, metal, dx12, gles, parking_lot) and [target.'cfg(target_arch = "wasm32")'.dependencies] (enabling webgl) were left pinned to version = "29". As a result, native GPU backend features are not enabled on wgpu 30, leaving the dependency graph split and broken.

Suggestions

• Align [dev-dependencies] naga (crates/rusty2600-frontend/Cargo.toml:249): Whenever wgpu is upgraded to 30, naga must also be bumped from 29 to 30 so that offline WGSL validation in tests matches the runtime shader compiler used by wgpu.

Nitpicks

• PR title has a duplicated scope (chore(deps)(deps): ...); use single Conventional Commit scope chore(deps): ....

_{Automated first-pass review by agy on a self-hosted runner -- not a human review.}

[doublegate]

Bot Review Adjudication (Antigravity + CodeRabbit):

• Addressed both CodeRabbit's inline thread and Antigravity's review findings: all three wgpu target tables in crates/rusty2600-frontend/Cargo.toml (base, native, and wasm32), [dev-dependencies] naga, and the egui 0.37.0 stack are upgraded together in the consolidated dependency PR alongside the wgpu 30 API migrations in src/gfx.rs and src/app.rs.

[doublegate]

Superseded by consolidated dependency PR #49.

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