diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07fe6f7f..02c7fbff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,27 @@
+<a name="1.10.1"></a>
+## 1.10.1 (2017-02-27)
+
+
+### Bug Fixes
+
+* improve x-servers dropdown animation performance ([69c7d98](https://github.com/Rebilly/ReDoc/commit/69c7d98))
+
+
+
+<a name="1.10.0"></a>
+# 1.10.0 (2017-02-27)
+
+
+### Bug Fixes
+* Revert: remove unused hide-hostname option ([7031176](https://github.com/Rebilly/ReDoc/commit/7031176))
+
+### Features
+
+* new option `required-props-first` ([c724df4](https://github.com/Rebilly/ReDoc/commit/c724df4)), closes [#191](https://github.com/Rebilly/ReDoc/issues/191)
+* update fragment while scrolling and on menu clicks ([66c06b3](https://github.com/Rebilly/ReDoc/commit/66c06b3)), closes [#138](https://github.com/Rebilly/ReDoc/issues/138) [#202](https://github.com/Rebilly/ReDoc/issues/202)
+
+
+
 <a name="1.9.0"></a>
 # 1.9.0 (2017-02-25)
 
diff --git a/build/empty.js b/build/empty.js
deleted file mode 100644
index e69de29b..00000000
diff --git a/build/webpack.common.js b/build/webpack.common.js
index 29cd5bee..5ff99d08 100644
--- a/build/webpack.common.js
+++ b/build/webpack.common.js
@@ -110,9 +110,7 @@ module.exports = function (options) {
         'AOT': options.AOT
       }),
 
-      new StringReplacePlugin(),
-      new webpack.NormalModuleReplacementPlugin(/node_modules\/rxjs\/operator\/.*/, root('build/empty.js')),
-      new webpack.NormalModuleReplacementPlugin(/node_modules\/rxjs\/testing\//, root('build/empty.js'))
+      new StringReplacePlugin()
     ],
     node: {
       global: true,
diff --git a/docs/redoc-vendor-extensions.md b/docs/redoc-vendor-extensions.md
index 15546c64..2e6329cc 100644
--- a/docs/redoc-vendor-extensions.md
+++ b/docs/redoc-vendor-extensions.md
@@ -13,7 +13,8 @@ Backported from OpenAPI 3.0 [`servers`](https://github.com/OAI/OpenAPI-Specifica
 | x-tagGroups         | [ [Tag Group Object](#tagGroupObject) ] | A list of tag groups |
 
 ###### Usage in Redoc
-`x-tagGroups` is used to group tags in the side menu
+`x-tagGroups` is used to group tags in the side menu.
+If you are going to use `x-tagGroups`, please make sure you **add all tags to a group**, since a tag that is not in a group, **will not be displayed** at all!
 
 #### <a name="tagGroupObject"></a>Tag Group Object
 Information about tags group
diff --git a/lib/services/hash.service.ts b/lib/services/hash.service.ts
index f115e65b..b1d4dbd2 100644
--- a/lib/services/hash.service.ts
+++ b/lib/services/hash.service.ts
@@ -28,7 +28,7 @@ export class Hash {
   }
 
   update(hash: string|null) {
-    if (!hash) return;
+    if (hash == undefined) return;
     this.noEmit = true;
     window.location.hash = hash;
     setTimeout(() => {
diff --git a/lib/services/menu.service.ts b/lib/services/menu.service.ts
index eea660fb..d0f95144 100644
--- a/lib/services/menu.service.ts
+++ b/lib/services/menu.service.ts
@@ -3,6 +3,7 @@ import { Injectable, EventEmitter } from '@angular/core';
 import { Subscription } from 'rxjs/Subscription';
 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
 import { ScrollService, INVIEW_POSITION } from './scroll.service';
+import { WarningsService } from './warnings.service';
 import { Hash } from './hash.service';
 import { SpecManager } from '../utils/spec-manager';
 import { SchemaHelper } from './schema-helper.service';
@@ -207,7 +208,10 @@ export class MenuService {
 
     this.deactivate(this.activeIdx);
     this.activeIdx = idx;
-    if (idx < 0) return;
+    if (idx < 0) {
+      this.hash.update('');
+      return;
+    }
 
     item.active = true;
 
@@ -351,7 +355,7 @@ export class MenuService {
 
     tags = tags.map(k => {
       if (!this._tagsWithMethods[k]) {
-        console.warn(`Non-existing tag "${k}" is specified in tag group "${tagGroup.name}"`);
+        WarningsService.warn(`Non-existing tag "${k}" is added to the group "${tagGroup.name}"`);
         return null;
       }
       this._tagsWithMethods[k].used = true;
@@ -408,7 +412,7 @@ export class MenuService {
   checkAllTagsUsedInGroups() {
     for (let tag of Object.keys(this._tagsWithMethods)) {
       if (!this._tagsWithMethods[tag].used) {
-        console.warn(`Tag "${tag}" is not added to any group`);
+        WarningsService.warn(`Tag "${tag}" is not added to any group`);
       }
     }
   }
diff --git a/lib/services/warnings.service.ts b/lib/services/warnings.service.ts
index 54c29754..b547f564 100644
--- a/lib/services/warnings.service.ts
+++ b/lib/services/warnings.service.ts
@@ -1,11 +1,11 @@
 'use strict';
 import { Injectable } from '@angular/core';
-import { Subject } from 'rxjs';
+import { BehaviorSubject } from 'rxjs/BehaviorSubject';
 
 @Injectable()
 export class WarningsService {
   private static _warnings: Array<string> = [];
-  private static _warningsObs = new Subject<Array<string>>();
+  private static _warningsObs = new BehaviorSubject<Array<string>>([]);
 
   static get warnings() {
     return WarningsService._warningsObs;
diff --git a/package.json b/package.json
index 2e175d6e..d6153aa0 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "redoc",
   "description": "Swagger-generated API Reference Documentation",
-  "version": "1.10.1",
+  "version": "1.10.2",
   "repository": {
     "type": "git",
     "url": "git://github.com/Rebilly/ReDoc"