Released on Wednesday, November 12 2025.

• Fixed handling of carriage return in text sources
• Added support for of syntax in :nth-child functions within CSS selectors
• Added selectedcontent to known elements (#1230)
• Added :open, ::checkmark, ::picker-icon, and ::picker(ident) to selector syntax (#1230)
• Added parsing for customizable <select> (#1230)
• Added .NET 10 as an explicit target

Full Changelog: 1.3.1...v1.4.0

Released on Saturday, November 8 2025.

• Removed Microsoft.SourceLink.GitHub by @SimonCropp in #1235
• Added ISvgStyleElement and the associated implementation by @Rtwo-Dtwo in #1233
• Added IReadOnlyList<T> interface to IHtmlCollection, IStringList, ITokenList, IHtmlFormControlsCollection (#1226, #1227) @weitzhandler

New Contributors

• @weitzhandler made their first contribution in #1227
• @Rtwo-Dtwo made their first contribution in #1233

Full Changelog: 1.3.0...1.3.1

Released on Friday, April 18 2025.

• Fixed DOM exposed type of HasChildNodes (#1219) @arekdygas
• Fixed NodeIterator behavior when nodes are removed (#1222)
• Improved form documentation (#1220) @RedZone908
• Updated to NUKE 9 and removed obsolete .NET 6 and 9 targets (#1216) @lahma
• Added GetAttributeNode methods to IElement (#1223) @arekdygas
• Added support for finding targets in browsing contexts (#1218) @TheJayMann
• Added support for targetting iframes (#1205) @TheJayMann

Full Changelog: 1.2.0...1.3.0

Released on Tuesday, December 31 2024.

• Fixed loading of link element source (#1184) @tomvanenckevort
• Fixed usage of outdated dependency (#1186)
• Fixed cookie Expires recognized as local time (#1212) @noobow34
• Fixed validation for problematic decimal step values (#1210) @rhuebner76
• Removed unnecessary references for .NET 6 and higher (#1187) @lahma
• Removed support for .NET 4.6.1 (least version is 4.6.2)
• Updated to NUKE 8 (#1188) @lahma
• Added new OnToken event for the tokenizer (#1153) @schaakverslaafd
• Added new setting for disabling StringBuilder pooling (#1203) @micahbresette
• Added context to extension methods (#1194) @memiamp
• Added property attribute to meta tags (#1195) @hflexgrig

Released on Friday, March 8 2024.

• Fixed exception when providing wrong response (#1181)
• Fixed handling of various inputs leading to timeouts (#1180)

Released on Thursday, February 29 2024.

• Fixed ISourceReference not using HtmlToken underneath
• Fixed handling of replacement characters in escaped script blocks (#1174)
• Fixed handling of empty template element in SVG foreign mode (#1176)
• Improved pre-release version to follow semver (#1171) @georg-jung
• Improved NuGet package with link to repository (#1168) @thompson-tomo
• Added PostAsMultipart helper for multipart/form-data to DocumentRequest (#1173)

Released on Thursday, February 29 2024.

• Fixed ISourceReference not using HtmlToken underneath
• Fixed handling of replacement characters in escaped script blocks (#1174)
• Improved pre-release version to follow semver (#1171) @georg-jung
• Improved NuGet package with link to repository (#1168) @thompson-tomo

Released on Tuesday, February 27 2024.

• Fixed ISourceReference not using HtmlToken underneath
• Improved pre-release version to follow semver (#1171) @georg-jung
• Improved NuGet package with link to repository (#1168) @thompson-tomo

Released on Thursday, January 18 2024

• Fixed priority calculations for selector lists (#1161)
• Fixed :where and :is selectors using forgiving lists
• Added option for read only DOM (#1154) @dv00d00
• Added more optimizations to reduce allocation rate (#1159) @dv00d00
• Added support for nested selectors (&)

Released on Thursday, January 18 2024

• Fixed priority calculations for selector lists (#1161)
• Fixed :where and :is selectors using forgiving lists
• Added option for read only DOM (#1154) @dv00d00
• Added more optimizations to reduce allocation rate (#1159) @dv00d00
• Added support for nested selectors (&)