2.0.0-preview1

Features

• Rename ITagHelperDescriptorBuilder => TagHelperDescriptorBuilder (#1210)
• Add the ability to parse just until the end of the first directive (#1195)
• Add TagHelper completions API to TagHelperFactService. (#1181)
• Add support for @namespace to configure the namespace the generated class is in (#1159)
• Add DisplayName to RequiredAttributeDescriptor (#1119)
• FileSystemRazorProject should be internal (#1117)
• CodeGeneration should not generate line pragmas from unknown file paths (#1110)
• Add GetImportItems to RazorTemplateEngine (#1109)
• Add RazorSourceDocument.Create(string template) (#1063)
• Update to use the latest Roslyn version and add support for C# 7 (#1046)
• Remove RazorIRVisitor (#1021)
• Add logging to Language Service (#1015)
• Add Errors to Language Services (#1014)
• DirectiveDescriptiveBuilder needs to have way to specify optional tokens (#968)
• Core: Implement API sets multitargeting for CSharp (#846)

Bugs Fixed

• Razor editor crash when typing @namespace directive line (#1268)
• Querying imports for non-existent Razor file throws (#1267)
• Html.RenderPartialAsync("") shows an error in editor (#1254)
• Trying to write page with quotes sometimes crashes Visual Studio (#1247)
• Trying to write addTagHelper with quotes crashes Visual Studio (#1242)
• TagHelperElementCompletionService does not filter schema HTML elements based on TagOutputHint (#1225)
• TagHelperElementCompletionService does not return TagHelper completions with a prefix. (#1224)
• TModel placeholder at design time causes errors when @model isn't fully qualified (#1222)
• TagHelperElementCompletionService does not apply CatchAlls to existing completions (#1219)
• GetTagHelpersGivenParent does not work when inspecting the root (#1188)
• DefaultTagHelperFactService does not handle opt-out TagHelpers correctly. (#1186)
• Identical @using statements from imports or defaults override those from main document (#1174)
• Rename Razor.Evolution (#1169)
• @using directives don't generate line mappings. (#1162)
• Create LineMappings for 0 length spans to ensure IntelliSense is provided when typing @ (#1155)
• Resolving TagHelpers from an assembly that only has runtime TagHelpers creates an error at design time. (#1145)
• Imported directives have their tokens rendered for IntelliSense (#1138)
• Using TModel in ViewImports causes compile errors at design time (#1137)
• Extensible directives should output typenames with global:: (#1128)
• Fix FileSystemRazorProject to accurately handle absolute paths. (#1106)
• Spans created by RazorSyntaxTree.Parse(RazorSourceDocument) do not have FilePath specified on the source. (#1069)
• If/def our non-shipping code in the Razor Extension (#1016)
• String token directives should require quoted values. (#980)
• Using statements with SourceSpan set should generate line pragma (#959)
• RazorSourceDocument throws when stream is empty (#947)
• Remove reference assemblies that are added to the vsix (#940)
• Small mistake in 'CSharpLanguageCharacteristics' (#924)
• Razor debug information uses relative paths (#803)