Performance Improvements #

The 1.1 compiler is typically around 4x faster than any previous release. See this blog post for some impressive charts.

Better Module Visibility Rules #

TypeScript now only strictly enforces the visibility of types in modules if the --declaration flag is provided. This is very useful for Angular scenarios, for example:

module MyControllers {
  interface ZooScope extends ng.IScope {
    animals: Animal[];
  export class ZooController {
    // Used to be an error (cannot expose ZooScope), but now is only
    // an error when trying to generate .d.ts files
    constructor(public $scope: ZooScope) { }
    /* more code */