4.0.0-beta8

Features

• Change [RestrictChildren] to work for non-TagHelper children. (#543)
• Add extension methods on HtmlContentBuilder for String.Format style formatting (#526)
• Tag Helpers not available within script tag (#502)
• Add copy constructor for IReadonlyTagHelperAttribute => TagHelperAttribute (#492)
• Different TagHelpers with the same element name, depending on scope (#474)
• Razor/TagHelper errors are inconsistent (#386)
• Support symbol data bound attributes in HTML (#137)

Bugs Fixed

• Partial tag inside of tag helper with restricted children crashes VS. (#534)
• @tagHelperPrefix does not work with RestrictChildren(...)
• Potential small bug in Tokenizer.Lookahead when using TakeAll(...) (#527)
• ITypeInfo.FullName should return the same value as TypeInfo.FullName (#523)
• Rename RestrictChildrenAttribute properties/params to be ChildTag etc. (#517)
• Rename TargetElement to HtmlTargetElement (#516)
• TagHelpers won't work in @... code blocks (#494)
• Strange error message when excess @ symbols in source code. (#491)
• Remove unnecessary whitespace that is rendered for non markup content (#485)
• Attributes don't work in Tag Helper if newline precedes first attribute (#484)
• Add temporary parse error for @Helper directive to avoid confusion. (#472)
• Simplify '@addTagHelper' syntax for globbing types (#426)
• Add timeout values to all regex expressions (#369)
• Razor does not correctly parse HTML attributes that have spaces surrounding the equals (#123)

4.0.0-beta7

Features

• Allow calls to TagHelperContext.GetChildContentAsync to reevaluate on each call (#459)
• Add ability for a TagHelper to be written with just a start tag by stating it doesn't expect content. (#450)
• Razor Comments Introduce Carriage Returns (#428)
• Remove ~/ handling from core Razor. (#427)
• Allow Tag Helpers to restrict child elements (#255)
• Auto Attribute removal in TagHelpers (#247)

Bugs Fixed

• OutputElementHint is not recognized at design time. (#457)
• Setting EditorBrowsableState.Never for a single bound attribute affects all attributes (#454)

4.0.0-beta6

Features

• Consume EditorBrowsableAttribute on TagHelpers. (#447)
• Add OutputElementHintAttribute to control inherited TagHelper IntelliSense. (#382)
• Consume docs on TagHelper classes to provide IntelliSense at design time. (#352)
• Enable support for instrumentation (Page Inspector) for TagHelpers (#172)
• Rename CodeGenerators to ChunkGenerators. (#140)

Bugs Fixed

• Duplicate bound attributes should flow through as unbound attributes. (#418)
• Error is occurred if there is a link in the render section (#412)
• Exception filters cause Razor errors (#402)
• Incorrect classification (and therefore IntelliSense) for expressions containing transition characters (ex @) (#387)
• Don't special case '*' retrieval in TagHelperDescriptorProvider (#324)
• Attribute order from source is not preserved upon rendering (#225)

4.0.0-beta5

Features

• Support * wild card in TargetElement Attribute. (#361)
• Add support to allow Tag Helpers to generate content before and after source element (#341)
• TagHelperOutput doesn't allow multiple non-bound TagHelper attributes with identical names. (#279)
• Add [HtmlAttributeNotBound] property to indicate that a property should not come from HTML (#182)
• Support adding attributes to IDictionary<string, TValue> properties (#89)

Bugs Fixed

• Whitespace at the end of a tag should not be written to output. (#379)
• Equals() and GetHashCode() implementations are inconsistent (#362)
• TagHelper attributes with data- have surprising behavior (#342)
• RazorError should specify the file path of the chunk that originates the error (#334)
• Tooling: Directives don't format correctly when entering newline. (#332)
• Move ParserErrorSink, RazorError and SourceLocation to a better namespace (#320)
• Bound attribute keys don't maintain HTML provided case in TagHelperContext.AllAttributes (#266)
• TagHelper attributes with no value cannot be used in TagHelpers (#220)
• Directive errors don't apply error squiggly to full directive. (#217)
• Attribute Parser Error (#183)
• Await TagHelper generated runtime objects. (#169)
• Razor code generator produces unnecessary writeliteral with whitespaces (#50)
• Need to evaluate whether any C# 6 features will require changes to the Razor parser (#44)

4.0.0-beta4

Bugs Fixed

• HTML attributes on elements that a tag helper targets are double-encoded (#335)
• Attributes with no value don't invoke IntelliSense. (#271)

Features

• Make RazorError deserializable (#330)
• Multiple [TargetElement] attributes on a single TagHelper should de-dup if multiple match. (#326)
• Consider moving TagHelperOutput.Generate*() functionality to RazorPage.Write in Mvc. (#318)
• Allow tag helpers to target elements by attribute (#311)
• Modify '?' in @addtaghelper and @removetaghelper to mean 1 character and not "optionally 1 character" (#297)
• Change TagHelperOutput Content, PreContent and PostContent to all be TextWriters to avoid large string allocations. (#296)
• Create parser error for empty TagHelper bound attribute values. (#289)
• @addtaghelper and @removetaghelper should allow wild cards. (#285)
• Remove the @Helper directive from Razor (#281)
• Camel-case tag helper directives (#264)
• Add TagHelperContext.Items bag to enable passing values between related tag helpers (#238)
• Support disabling tag helper processing at the element level (#187)
• Implement Order (#94)

4.0.0-beta3

Features

• Tag Helpers: Add an UniqueID to TagHelperContext (#241)
• Tag Helpers: Map PascalCase type & property names to HTML element & attribute dashed equivalents (#240)
• Tag Helpers: Redesign of Tag Helpers content mode (#221)
• Tag Helpers: Ignore '@' symbols in Tag Helper attributes if not string or character. (#129)
• Tag Helpers: Support tag recovery (#104)

Bugs Fixed

• TagHelperOutput.SupressOutput is misspelled (#270)
• Tag Helper code generation produces unused variables (#260)

4.0.0-beta2

Features

• Tag Helpers: Generate DesignTime code. (#208)
• Tag Helpers: Add design time projections for attributes (#207)
• Remove @sessionstate directive. (#192)
• Add aspnet50 build configuration. (#167)
• Tag Helpers: Add @removetaghelper directive and link to registration system (#112)

Bugs Fixed

• Razor removes invalidly named HTML elements from output. (#212)
• Tag Helpers: Change TagHelperOutput attribute lookups to be case insensitive. (#186)

4.0.0-beta1

Features

• Tag Helpers: Replace customer facing Debug.Assert's with parse errors. (#174)
• Tag Helpers: Create string => Type[] resolver to indicate what Types are TagHelpers based on a lookup string.. (#158)
• Tag Helpers: Create a TagHelperScopeManager (#155)
• Tag Helpers: Create TagHelper runner. (#154)
• Create Razor.Runtime project. (#136)
• Tag Helpers: Add ability to specify ContentBehavior (#122)
• Tag Helpers: Add ability to specify one or more tag name targets via Attribute (#120)
• Tag Helpers: Make Attribute Code Generation pluggable. (#119)
• Tag Helpers: Add @addtaghelper directive and link to registration system (#111)
• Tag Helpers: Create TagHelperDescriptor resolver system (#99)
• Add ClassDeclaration extensibility to CSharpCodeBuilder (#76)
• Tag Helpers: Modify parser to create begin/end html tag elements that are ungrouped. (#75)
• Tag Helpers: Create code generators and code visitors that understand tags (#72)
• TagHelpers: Create parse visitors that understand "special" html (#71)
• Razor: Add instrumentation support (for page inspector, browser link) (#42)

Bugs Fixed

• Insert pragma checksum at top of generated Razor file to enable debugging. (#160)
• Debugging does not work for implicit expressions. i.e. @DateTime.Now (#151)
• No C# intellisense inside of attributes (#80)

4.0.0-alpha4

Bugs Fixed

• Transition to C# code buffer doesnt happen after @Inject inside cshtml file (#139)

4.0.0-alpha3

Bugs Fixed

• Sections within partial views shouldn't fail silently (#79)