[dependabot]

Updated AngleSharp from 1.8.6 to 1.9.0.

Release notes

Sourced from AngleSharp's releases.

1.9.0

Released on Friday, October 30 2026.

What's Changed

• Improved performance of TextContent, :contains(), GetElementById, GetElementsByName, GetElementsByClassName, GetElementsByTagName and Normalize, which also continue with an explicit stack below 128 levels instead of recursing (#​1389) @​michaelthyregod
• Improved performance of IHtmlParser.ParseFragment and of inserting many nodes at once (Append, Prepend, ...): finding a template's host no longer scans the whole document, and removing a node's last child no longer scans its siblings
• Improved performance of removing or inserting a node's first child, which no longer shifts all its siblings, so moving every child of a large node one by one (or replacing it via innerHTML) takes linear time; each node with children also allocates one object less
• Improved quadratic parse time on hostile markup: elements and text foster-parented out of a table, a text run split by ignored end tags (x</q>x</q>...), and repeated html / body start tags piling up attributes; attribute name lookups on elements with many attributes no longer scan them
• Improved performance of :has(): relative arguments only walk what they can reach (:has(> a) the descendants, :has(+ a) / :has(~ a) the following siblings) instead of the parent's whole subtree, the walk no longer allocates, and a :has() is tested after the rest of its compound and its ancestor chain, so rules such as .tree :has(.skeleton):hover only walk subtrees of hovered elements inside .tree
• Fixed setInterval with a delay of 0 never yielding: every round completed synchronously and queued tasks until memory ran out; a negative delay of setTimeout or setInterval threw instead of counting as 0 (nested intervals now wait at least 4ms, as in browsers)
• Fixed fragment parsing (ParseFragment, innerHTML) to break out of svg / math on HTML start tags such as p, b or div, which previously stayed foreign elements
• Fixed CreateElement<TElement>() depending on reflection that trimming can break; IElement, IHtmlElement and ISvgElement now throw instead of returning an arbitrary element @​michaelthyregod
• Fixed IHtmlParser.ParseFragment to keep an SVG or MathML context element in its namespace (and an annotation-xml context's encoding), instead of parsing as if the context were an HTML element of the same name, and to find a form ancestor of the context, so a nested <form> start tag is ignored as with innerHTML
• Fixed inserting a detached template into its own contents not throwing a HierarchyRequestError
• Fixed AwaitEventAsync removing its listener off-thread while a dispatch was still running (#​1397) @​michaelthyregod
• Fixed event listener registration racing a dispatch on another thread @​michaelthyregod
• Fixed IHtmlSelectElement.SelectedIndex gaining a setter; set Options.SelectedIndex to change the selection (#​1395) @​SimonCropp
• Added AwaitEventAsync overload taking a CancellationToken @​michaelthyregod
• Added trimming and Native AOT compatibility (IsAotCompatible) for the .NET 8 and .NET 10 targets (#​1398) @​michaelthyregod
• Added trim-safe generic overloads of SubmitAsync, Attr, VirtualResponse.Headers and ToDictionary, which calls with an anonymous object bind to when recompiled; the Object overloads are now obsolete @​michaelthyregod
• Released 1.9.0 by @​FlorianRappl in Release 1.9.0 AngleSharp/AngleSharp#1399

New Contributors

• @​michaelthyregod made their first contribution in Fix stack overflow on deeply nested documents AngleSharp/AngleSharp#1389

Full Changelog: AngleSharp/AngleSharp@v1.8.6...v1.9.0

Commits viewable in compare view.

Updated AngleSharp.Css from 1.2.0 to 1.3.1.

Release notes

Sourced from AngleSharp.Css's releases.

1.3.1

Released on Sunday, November 1 2026.

What's Changed

• Improved the parser with a nesting limit for rules (MaxNestingDepth) (#​258) @​michaelthyregod
• Updated to use a minimum of AngleSharp 1.9 (#​257) @​michaelthyregod
• Added Render(element, parent) to the window, rendering the subtree of an element again below its parent's render node from an earlier render tree (e.g. after its inline style changed)
• Added trimming and Native AOT compatibility (#​257) @​michaelthyregod
• Added a trim-safe generic Css overload; the Object overload is obsolete (#​257) @​michaelthyregod
• Released 1.3.1 by @​FlorianRappl in Release 1.3.1 AngleSharp/AngleSharp.Css#259

New Contributors

• @​michaelthyregod made their first contribution in Adopt AngleSharp 1.9 and make the library trim and Native AOT compatible AngleSharp/AngleSharp.Css#257

Full Changelog: AngleSharp/AngleSharp.Css@v1.3.0...v1.3.1

1.3.0

Released on Wednesday, October 28 2026.

What's Changed

• Improved the render tree to inherit declarations from the parent's style instead of copying them to every element (e.g. thousands of custom properties on :root)
• Improved merging declarations in the cascade, which was quadratic in the number of declarations
• Improved blockifying (e.g. position: absolute or float) to not merge all inherited declarations into the element's computed style
• Improved the cascade to also group rules by an attribute their subject requires (e.g. [data-color-mode]) and by the arguments of :is(), :where(), and :matches(), and to skip rules with an invalid selector
• Improved substituting variables by reusing the parsed shorthand (e.g. border: var(--w) solid var(--c)) and the tokens of custom properties across elements
• Improved matching ::before and ::after by grouping the rules targeting pseudo-elements by the id, class, or tag name of the element they belong to, instead of matching all of them against every element
• Improved reading a property of a computed style that is neither declared nor inherited (e.g. border-bottom-width), which looked through the declarations of all ancestors, and of the shorthands containing it, only to discard what it found
• Improved serializing lists of a single entry or two (e.g. one background layer), which needed no buffer
• Improved evaluating media queries, which serialized and parsed the value of every feature (e.g. (min-width: 768px)) again for each style computation
• Improved the cascade to leave out a style sheet linked again later (e.g. dev.to links each of its style sheets twice), which the later copy overrides anyway
• Fixed a declaration starting with * (the IE7 hack *zoom: 1) being taken for a nested rule that swallowed the following declarations or the rest of the style sheet; it is dropped up to its semicolon
• Fixed a background shorthand with a single position keyword followed by another value (e.g. background: url(i.svg) center no-repeat or center red) being dropped as invalid
• Fixed forms having a vertical margin (1.12em), which only quirks mode gives them
• Added CssParserOptions.IsNotResolvingRelativeUrls to prevent resolving the relative URLs in linked and imported style sheets
• Added font-variant-east-asian (normal, jis78/jis83/jis90/jis04/simplified/traditional, full-width/proportional-width, ruby), which used to be dropped as an unknown property
• Added innerWidth, innerHeight, and devicePixelRatio to the window, taken from the render device
• Released 1.3.0 by @​FlorianRappl in Release 1.3.0 AngleSharp/AngleSharp.Css#256

Full Changelog: AngleSharp/AngleSharp.Css@v1.2.2...v1.3.0

1.2.2

Released on Sunday, October 25 2026.

What's Changed

• Improved the cascade to only match the rules that can apply to an element (grouped by the id, class, or tag name of their subject)
• Improved the render tree to skip computing ::before and ::after without a content declaration
• Improved the lookup of property declarations
• Fixed stack overflow for rem in the font-size of the root element (now refers to the initial font size)
• Fixed media queries in the range syntax of Media Queries 4 ((width >= 600px), (400px < width <= 700px)), which never matched
• Fixed media queries combined with or, nested conditions ((a) and ((b) or (c))), and not applying to the whole query
• Fixed media queries with math functions as values ((width < calc(50rem + 2rem))), which were invalid
• Fixed var() substitution separating tokens with comments where they could not merge (e.g. minmax(/**/15rem/**/,1fr)), which made grid track lists invalid
• Fixed gap with a single value (e.g. gap: 8px or gap: var(--gap)) not setting column-gap
• Fixed flow-relative properties (e.g. padding-inline, margin-inline-end, inset-inline-start, inline-size) not applying to the physical sides; they are now mapped according to writing-mode and direction, sharing one cascade with the physical properties
• Fixed orientation media feature to follow the viewport instead of the device
• Fixed matchMedia throwing for an invalid query instead of evaluating it as not all
• Fixed the pseudo-elements of CSS 2 written with a single colon (e.g. li:after) not applying to the pseudo-element
• Fixed pseudo-classes before a pseudo-element (e.g. li:first-child::after) being matched against the pseudo-element instead of its originating element
• Fixed the background shorthand not accepting currentcolor as its color
• Fixed aspect-ratio not accepting a single number (e.g. aspect-ratio: 1.8, meaning 1.8 / 1)
• Fixed grid area and line names (e.g. grid-area: leadingVisual) and other custom identifiers (view-transition-name, anchor-name, position-anchor, animation-timeline, font-palette) being lowercased, so they no longer matched case-sensitive names like the ones of grid-template-areas
• Fixed em and percentage lengths throwing for an element with font-size: 0 or an empty box (e.g. in translate())
• Added cascade layers (@​layer) to the cascade, whose rules were ignored before
• Added shadow trees to the render tree: a shadow host renders its shadow tree (styled by the shadow root's style sheets, with the host as scope for :host) with slots showing their assigned nodes, unless hidden
• Added :host rules of a shadow tree styling the shadow host in the render tree; they lose against the author rules of the host's own tree unless important
• Added the presentational hints of HTML elements to the cascade: dimension attributes (e.g. <img width=40 height=30>, <td width>) and bgcolor/text/color attributes map to their CSS properties, before all author rules
• Released 1.2.2 by @​FlorianRappl in Release 1.2.2 AngleSharp/AngleSharp.Css#255

Full Changelog: AngleSharp/AngleSharp.Css@v1.2.1...v1.2.2

1.2.1

Released on Friday, October 23 2026.

What's Changed

• Fixed computed display not blockified for floats
• Fixed computed display not blockified for absolutely positioned boxes
• Fixed computed display not blockified for the root element
• Added support for ::placeholder
• Released 1.2.1 by @​FlorianRappl in Release 1.2.1 AngleSharp/AngleSharp.Css#254

Full Changelog: AngleSharp/AngleSharp.Css@v1.2.0...v1.2.1

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