Roadmap

2.0

• async/await support for ES5/ES3

1.8

• Support for path mappings module resolution
• Support JavaScript in TypeScript compilations
• Support for unreachable code reporting
• Improve lib.d.ts modularity
• Module bundling

1.7

• ES7 exponentiation operator
• Polymorphic this type
• Support --module with --target es6
• Support for decorators when targeting ES3
• async/await support for ES6 (Node v4)

1.6

• ES6 Generators
• Local types
• Generic type aliases
• Expressions in class extends clauses
• Class expressions
• exclude property in tsconfig.json
• User defined type guard functions
• External module resolution enhancements
• JSX support
• Intersection types
• abstract classes and methods
• Strict object literal assignment checking
• Declaration merging for classes and interfaces
• New --init

1.5

• Support for Destructuring
• Support for Spread Operator
• Support for ES6 Modules
• Support for for..of
• Support for ES6 Unicode specification
• Support for Symbols
• Support for Computed properties
• Support for tsconfig.json files
• Support for let and const in ES3/ES5
• Support for tagged templates in ES3/ES5
• Expose a new editor interface through TS Server
• Support for ES7 Decorators proposal
• Support for Decorator type metadata
• New --rootDir
• New ts.transpile API
• Support --module umd
• Support --module system
• New --noEmitHelpers
• New --inlineSourceMap
• New --inlineSources
• New --newLine
• New --isolatedModules
• Support for new namespace keyword
• Support for tsconfig.json in Visual Studio 2015
• Improved template literal highlighting in Visual Studio 2013

1.4

• Support for Union Types and Type Guards
• New --noEmitOnError
• New --target ES6
• Support for Let and Const
• Support for Template Literals
• Library typings for ES6
• Support for Const enums
• Export Language Service public API

1.3

• Language service re-write to target new compiler
• Support for protected members in classes
• Support for Tuple Types