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Release v8.1.5 - #30713

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Release v8.1.5#30713
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@mdn-bot mdn-bot commented Oct 1, 2026 •
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(This release was generated by the project's release script.)

v8.1.5

October 8, 2026

Removals

  • api.VRStageParameters.sizeY (#30686)
  • css.at-rules.page.bottom-center (#30612)
  • css.at-rules.page.bottom-left (#30612)
  • css.at-rules.page.bottom-left-corner (#30612)
  • css.at-rules.page.bottom-right (#30612)
  • css.at-rules.page.bottom-right-corner (#30612)
  • css.at-rules.page.left-bottom (#30612)
  • css.at-rules.page.left-middle (#30612)
  • css.at-rules.page.left-top (#30612)
  • css.at-rules.page.right-bottom (#30612)
  • css.at-rules.page.right-middle (#30612)
  • css.at-rules.page.right-top (#30612)
  • css.at-rules.page.top-center (#30612)
  • css.at-rules.page.top-left (#30612)
  • css.at-rules.page.top-left-corner (#30612)
  • css.at-rules.page.top-right (#30612)
  • css.at-rules.page.top-right-corner (#30612)
  • css.properties.align-content.block_context (#30613)
  • css.properties.align-content.flex_context (#30613)
  • css.properties.align-content.flex_context.baseline (#30613)
  • css.properties.align-content.flex_context.first_baseline (#30613)
  • css.properties.align-content.flex_context.last_baseline (#30613)
  • css.properties.align-content.flex_context.safe_unsafe (#30613)
  • css.properties.align-content.flex_context.space-evenly (#30613)
  • css.properties.align-content.flex_context.start_end (#30613)
  • css.properties.align-content.flex_context.stretch (#30613)
  • css.properties.align-content.grid_context (#30613)
  • css.properties.align-content.multicol_context (#30613)
  • css.properties.align-items.flex_context (#30613)
  • css.properties.align-items.flex_context.baseline (#30613)
  • css.properties.align-items.flex_context.first_baseline (#30613)
  • css.properties.align-items.flex_context.last_baseline (#30613)
  • css.properties.align-items.flex_context.safe_unsafe (#30613)
  • css.properties.align-items.flex_context.start_end (#30613)
  • css.properties.align-items.grid_context (#30613)
  • css.properties.align-items.grid_context.start_end (#30613)
  • css.properties.align-self.flex_context (#30613)
  • css.properties.align-self.flex_context.baseline (#30613)
  • css.properties.align-self.flex_context.first_baseline (#30613)
  • css.properties.align-self.flex_context.last_baseline (#30613)
  • css.properties.align-self.flex_context.safe_unsafe (#30613)
  • css.properties.align-self.flex_context.start_end (#30613)
  • css.properties.align-self.flex_context.stretch (#30613)
  • css.properties.align-self.grid_context (#30613)
  • css.properties.align-self.position_absolute_context (#30613)
  • css.types.color.system-color.accentcolor_accentcolortext (#30637)

Additions

  • api.Element.pseudo.type_parameter (#30700)
  • api.Element.pseudo.type_parameter.after_pseudo (#30700)
  • api.Element.pseudo.type_parameter.backdrop_pseudo (#30700)
  • api.Element.pseudo.type_parameter.before_pseudo (#30700)
  • api.Element.pseudo.type_parameter.marker_pseudo (#30700)
  • api.Element.pseudo.type_parameter.scroll-marker_pseudo (#30700)
  • api.Element.pseudo.type_parameter.view-transition_pseudo (#30700)
  • api.Element.pseudo.type_parameter.view-transition-group_pseudo (#30700)
  • api.Element.pseudo.type_parameter.view-transition-image-pair_pseudo (#30700)
  • api.Element.pseudo.type_parameter.view-transition-transition-new_pseudo (#30700)
  • api.Element.pseudo.type_parameter.view-transition-transition-old_pseudo (#30700)
  • api.GPUDevice.createRenderPipeline.vertex_1-component (#30634)
  • api.GPUDevice.createRenderPipeline.vertex_unorm8x4-bgra (#30634)
  • api.GPUDevice.createRenderPipelineAsync.vertex_1-component (#30634)
  • api.GPUDevice.createRenderPipelineAsync.vertex_unorm8x4-bgra (#30634)
  • api.VRStageParameters.sizeZ (#30686)
  • browsers.chrome_android.releases.158 (#30759)
  • browsers.chrome.releases.158 (#30759)
  • browsers.opera.releases.139 (#30788)
  • browsers.webview_android.releases.158 (#30759)
  • css.at-rules.page.at_bottom-center (#30612)
  • css.at-rules.page.at_bottom-left (#30612)
  • css.at-rules.page.at_bottom-left-corner (#30612)
  • css.at-rules.page.at_bottom-right (#30612)
  • css.at-rules.page.at_bottom-right-corner (#30612)
  • css.at-rules.page.at_left-bottom (#30612)
  • css.at-rules.page.at_left-middle (#30612)
  • css.at-rules.page.at_left-top (#30612)
  • css.at-rules.page.at_right-bottom (#30612)
  • css.at-rules.page.at_right-middle (#30612)
  • css.at-rules.page.at_right-top (#30612)
  • css.at-rules.page.at_top-center (#30612)
  • css.at-rules.page.at_top-left (#30612)
  • css.at-rules.page.at_top-left-corner (#30612)
  • css.at-rules.page.at_top-right (#30612)
  • css.at-rules.page.at_top-right-corner (#30612)
  • css.at-rules.page.page-margin-safety (#30612)
  • css.properties.align-content.baseline (#30613)
  • css.properties.align-content.center (#30613)
  • css.properties.align-content.context_block (#30613)
  • css.properties.align-content.context_flex (#30613)
  • css.properties.align-content.context_grid (#30613)
  • css.properties.align-content.context_multicol (#30613)
  • css.properties.align-content.end (#30613)
  • css.properties.align-content.first_baseline (#30613)
  • css.properties.align-content.flex-end (#30613)
  • css.properties.align-content.flex-start (#30613)
  • css.properties.align-content.last_baseline (#30613)
  • css.properties.align-content.safe (#30613)
  • css.properties.align-content.space-around (#30613)
  • css.properties.align-content.space-between (#30613)
  • css.properties.align-content.space-evenly (#30613)
  • css.properties.align-content.start (#30613)
  • css.properties.align-content.stretch (#30613)
  • css.properties.align-content.unsafe (#30613)
  • css.properties.align-items.baseline (#30613)
  • css.properties.align-items.center (#30613)
  • css.properties.align-items.context_flex (#30613)
  • css.properties.align-items.context_flex.end_in_flex (#30613)
  • css.properties.align-items.context_flex.start_in_flex (#30613)
  • css.properties.align-items.context_grid (#30613)
  • css.properties.align-items.end (#30613)
  • css.properties.align-items.first_baseline (#30613)
  • css.properties.align-items.flex-end (#30613)
  • css.properties.align-items.flex-start (#30613)
  • css.properties.align-items.last_baseline (#30613)
  • css.properties.align-items.normal (#30613)
  • css.properties.align-items.safe (#30613)
  • css.properties.align-items.self-end (#30613)
  • css.properties.align-items.self-start (#30613)
  • css.properties.align-items.start (#30613)
  • css.properties.align-items.stretch (#30613)
  • css.properties.align-items.unsafe (#30613)
  • css.properties.align-self.baseline (#30613)
  • css.properties.align-self.center (#30613)
  • css.properties.align-self.context_flex (#30613)
  • css.properties.align-self.context_flex.stretch_in_flex (#30613)
  • css.properties.align-self.context_grid (#30613)
  • css.properties.align-self.context_position_absolute (#30613)
  • css.properties.align-self.end (#30613)
  • css.properties.align-self.first_baseline (#30613)
  • css.properties.align-self.flex-end (#30613)
  • css.properties.align-self.flex-start (#30613)
  • css.properties.align-self.last_baseline (#30613)
  • css.properties.align-self.safe (#30613)
  • css.properties.align-self.self-end (#30613)
  • css.properties.align-self.self-start (#30613)
  • css.properties.align-self.start (#30613)
  • css.properties.align-self.unsafe (#30613)
  • css.properties.scroll-snap-type.pair (#30754)
  • css.types.attr.raw-string (#30704)
  • css.types.color.system-color.accentcolor (#30637)
  • css.types.color.system-color.accentcolortext (#30637)
  • html.elements.script.type.module.http_errors_not_cached (#30604)
  • html.elements.textarea.wrap.off (#30550)
  • html.elements.textarea.wrap.soft (#30550)
  • javascript.operators.import.http_errors_not_cached (#30604)
  • javascript.statements.import.http_errors_not_cached (#30604)
  • svg.elements.textPath.method (#30677)
  • svg.elements.textPath.method.align (#30677)
  • svg.elements.textPath.method.stretch (#30677)

Statistics

  • 17 contributors have changed 78 files with 3,348 additions and 1,244 deletions in 43 commits (v8.1.4...v8.1.5)
  • 20,696 total features
  • 1,276 total contributors
  • 5,760 total stargazers

@github-actions github-actions Bot added infra Issue concerning project infrastructure, such as npm, GitHub Actions, or releases. docs Issue or pull request concerning project documentation. dependencies Pull request that updates a dependency. labels Oct 1, 2026
@github-actions

github-actions Bot commented Oct 1, 2026 •
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Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

@mdn-bot
mdn-bot force-pushed the release branch 26 times, most recently from 9905410 to 2e81290 Compare October 7, 2026 14:07
@mdn-bot
mdn-bot force-pushed the release branch 13 times, most recently from bba5049 to 65c4be6 Compare October 8, 2026 11:05
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