diff --git a/package.json b/package.json
index ee6ed62964c..29871e77f70 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "typescript",
     "author": "Microsoft Corp.",
     "homepage": "http://typescriptlang.org/",
-    "version": "1.9.0",
+    "version": "2.0.0",
     "license": "Apache-2.0",
     "description": "TypeScript is a language for application scale JavaScript development",
     "keywords": [
diff --git a/scripts/configureNightly.ts b/scripts/configureNightly.ts
index 8553c15ebd0..640f330b376 100644
--- a/scripts/configureNightly.ts
+++ b/scripts/configureNightly.ts
@@ -67,7 +67,7 @@ function getNightlyVersionString(versionString: string): string {
     const now = new Date();
     const timeStr = now.toISOString().replace(/:|T|\.|-/g, "").slice(0, 8);
 
-    return `${versionString}-dev.${timeStr}-1.0`;
+    return `${versionString}-dev.${timeStr}`;
 }
 
 main();
\ No newline at end of file
diff --git a/src/compiler/program.ts b/src/compiler/program.ts
index a01f3a4c5b2..a9438590118 100644
--- a/src/compiler/program.ts
+++ b/src/compiler/program.ts
@@ -9,7 +9,7 @@ namespace ts {
     /* @internal */ export let ioWriteTime = 0;
 
     /** The version of the TypeScript compiler release */
-    export const version = "1.9.0";
+    export const version = "2.0.0";
 
     const emptyArray: any[] = [];