diff --git a/src/services/services.ts b/src/services/services.ts
index 31ba819df29..74e7f924a20 100644
--- a/src/services/services.ts
+++ b/src/services/services.ts
@@ -14,6 +14,9 @@
 /// <reference path='formatting.ts' />
 
 module ts {
+
+    export var servicesVersion = "0.4"
+
     export interface Node {
         getSourceFile(): SourceFile;
         getChildCount(sourceFile?: SourceFile): number;
@@ -879,6 +882,8 @@ module ts {
 
     export interface Logger {
         log(s: string): void;
+        trace(s: string): void;
+        error(s: string): void;
     }
 
     //
diff --git a/src/services/shims.ts b/src/services/shims.ts
index 5556743830f..d139381c225 100644
--- a/src/services/shims.ts
+++ b/src/services/shims.ts
@@ -341,6 +341,14 @@ module ts {
             this.shimHost.log(s);
         }
 
+        public trace(s: string): void {
+            this.shimHost.trace(s);
+        }
+        
+        public error(s: string): void {
+            this.shimHost.error(s);
+        }
+
         public getCompilationSettings(): CompilerOptions {
             var settingsJson = this.shimHost.getCompilationSettings();
             if (settingsJson == null || settingsJson == "") {
@@ -859,6 +867,13 @@ module ts {
         private _shims: Shim[] = [];
         private documentRegistry: DocumentRegistry = createDocumentRegistry();
 
+        /*
+         * Returns script API version.
+         */
+        public getServicesVersion(): string {
+            return servicesVersion;
+        }
+
         public createLanguageServiceShim(host: LanguageServiceShimHost): LanguageServiceShim {
             try {
                 var hostAdapter = new LanguageServiceShimHostAdapter(host);