[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
AngleSharp (source)	1.8.6 → 1.9.1
JetBrains.dotCover.CommandLineTools	2025.3.5.2 → 2025.3.5.3

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Release Notes

AngleSharp/AngleSharp (AngleSharp)

v1.9.1

Released on Sunday, November 1 2026.

• Improved performance of inserting a newly created node (AppendChild, InsertBefore, ...) into a deep tree (#​1401) @​michaelthyregod
• Fixed classList.toggle(token, false) adding an absent token instead of removing it: the DOM's toggle is now DomTokenListExtensions.ToggleToken
• Fixed exponential matching of nested :nth-child(… of …) selectors (#​1403) @​michaelthyregod
• Improved handling of deeply nested selector functions (#​1402) @​michaelthyregod

v1.9.0

Released on Friday, October 30 2026.

• 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 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 @​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 @​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
• Fixed CreateElement<TElement>() depending on reflection that trimming can break; IElement, IHtmlElement and ISvgElement now throw instead of returning an arbitrary element @​michaelthyregod

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