[dependabot]

Updated AngleSharp from 1.8.6 to 1.10.0.

Release notes

Sourced from AngleSharp's releases.

1.10.0

Released on Friday, November 6 2026.

What's Changed

• Fixed addedNodes and removedNodes of a MutationRecord being null instead of an empty list
• Fixed document.open throwing in a top-level browsing context or without a resource loader, stopping the event loop, and document.write after loading losing what was written: it is parsed on close or when the current task ends
• Fixed a frame without src or srcdoc having no document and window, and it not firing load when inserted by a script
• Fixed getElementsByClassName, getElementsByTagName, getElementsByTagNameNS and getElementsByName not being live, which made a loop like while (list.length) list[0].remove() run forever
• Fixed previousNode of a TreeWalker never returning for a node with a previous sibling
• Fixed the detail of a CustomEvent and the relatedTarget of a FocusEvent being lost when given to their constructors by script
• Fixed ctrlKey, shiftKey, altKey and metaKey of a KeyboardEvent always being false, also for initKeyboardEvent and the wheel
• Fixed the options of KeyboardEvent, MouseEvent and WheelEvent for script not taking ctrlKey and the like, code, buttons or relatedTarget
• Fixed URLSearchParams keeping the leading ? of the string it is created from as part of the first name
• Fixed ErrorEvent initialized with its details having no type, so that it never reached listeners of error
• Fixed ErrorEvent.Message throwing without an error
• Fixed the same listener being called repeatedly when added repeatedly for a type and capture; this includes += on the events of the DOM
• Fixed a and area elements not having the stringifier of the DOM: ToString gives their href
• Fixed the document of a frame getting lost when its download finished while the element was still being set up
• Fixed contains of a node throwing for null
• Fixed replaceWith of nodes only being known as replace
• Fixed scripts running with IsScripting = false when the browsing context has a scripting service: such a document runs none of its scripts, not even those inserted later, so a custom parser with default options needs IsScripting = true to run scripts
• Added CreateDocumentOptions.IsScriptingDisabled to create a document without scripting, as DOMParser requires
• Added the options of addEventListener and removeEventListener: capture, once, passive and signal, where a signal is an IAbortSignal
• Added CreateDocumentOptions.IsNavigationDisabled to create a document without it becoming the active document of its context or entering the session history, as DOMParser requires
• Added the sandbox attribute of iframe applying to its browsing context (IBrowsingContext.Security), together with the flags of what is around it
• Added isConnected of nodes and toggleAttribute of elements
• Added custom elements: customElements of the window with define, get, getName, whenDefined and upgrade, as well as the :defined pseudo class; the scripts are run through ICustomElementHost, which can hold back the reactions until a call of a script returns; createElement with is and adoptedCallback included
• Added support for ::selection pseudo element
• Added X-Frame-Options and the frame-ancestors directive of Content-Security-Policy, against every document around a frame: a frame refusing to be shown gets no document
• Added replaceChildren as an extension of IParentNode
• Added entries, keys, values and forEach to URLSearchParams
• Added IScriptValueCloner for keeping what script gives without its engine
• Added getRootNode as an extension of INode
• Added toJSON to DOMRect and DOMPoint
• Added getAttributeNames, hasAttributes, insertAdjacentElement, insertAdjacentText and inert to elements, isSameNode to nodes and replace and value to DOMTokenList
• Added PointerEvent, code and isComposing to KeyboardEvent, x and y to MouseEvent, cancelBubble and returnValue to Event
• Added the constructor of EventTarget, which isn't abstract any more
• Added scrollingElement, hidden, visibilityState and charset to documents
• Added requestSubmit to forms, reportValidity to inputs, item to selects and decode, decoding, loading and referrerPolicy to images
• Added SubmitEvent and requestSubmit validation, cancellation, and submitter reporting to forms
• Added movementX and movementY to MouseEvent
• Added handling of popover attribute (popover API)
• Released 1.10.0 by @​FlorianRappl in Release 1.10.0 AngleSharp/AngleSharp#1407

New Contributors

• @​FlorianRappl with @​Copilot made their first contribution in Fix Windows build for legacy test targets AngleSharp/AngleSharp#1406

Full Changelog: AngleSharp/AngleSharp@v1.9.1...v1.10.0

1.9.1

Released on Sunday, November 1 2026.

What's Changed

• 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
• Released 1.9.1 by @​FlorianRappl in Release 1.9.1 AngleSharp/AngleSharp#1404

Full Changelog: AngleSharp/AngleSharp@v1.9.0...v1.9.1

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

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[dependabot]

Superseded by #1970.