diff --git a/apps/app/ui-tests-app/dialogs/dialogs.xml b/apps/app/ui-tests-app/dialogs/dialogs.xml
index b8a68129d..0ada85f9b 100644
--- a/apps/app/ui-tests-app/dialogs/dialogs.xml
+++ b/apps/app/ui-tests-app/dialogs/dialogs.xml
@@ -7,7 +7,9 @@
     <Button text="login" tap="{{ loginName }}" />
     <Button text="promptText" tap="{{ promptText }}" />
     <Button text="promptPass" tap="{{ promptPass }}" />
-    <Button text="promptEmail" tap="{{ promptEmail }}" />   
+    <Button text="promptEmail" tap="{{ promptEmail }}" />
+    <Button text="promptNumber" tap="{{ promptNumber }}" />
+    <Button text="promptPhone" tap="{{ promptPhone }}" />
     <Button text="promptCapitalizationNone" tap="{{ promptCapitalizationNone }}" />
     <Button text="promptCapitalizationAll" tap="{{ promptCapitalizationAll }}" />
     <Button text="promptCapitalizationSentences" tap="{{ promptCapitalizationSentences }}" />
diff --git a/apps/app/ui-tests-app/dialogs/view-model.ts b/apps/app/ui-tests-app/dialogs/view-model.ts
index 2d5e81646..398275200 100644
--- a/apps/app/ui-tests-app/dialogs/view-model.ts
+++ b/apps/app/ui-tests-app/dialogs/view-model.ts
@@ -138,6 +138,46 @@ export class SettingsViewModel extends observable.Observable {
         });
     }
 
+    public promptNumber(args: observable.EventData) {
+      dialogs.prompt({
+          title: "Name",
+          message: "Enter a number:",
+          cancelButtonText: "Cancel",
+          neutralButtonText: "Ignore",
+          okButtonText: "OK",
+          defaultText: "1234",
+          inputType: dialogs.inputType.number
+      }).then((promptResult) => {
+          console.log("### Result: " + promptResult.result + ", Text: " + promptResult.text);
+          if (promptResult.result) {
+              this.set("name", promptResult.text);
+          }
+          else {
+              this.set("name", "1234");
+          }
+      });
+    }
+
+    public promptPhone(args: observable.EventData) {
+      dialogs.prompt({
+          title: "Name",
+          message: "Enter a phone:",
+          cancelButtonText: "Cancel",
+          neutralButtonText: "Ignore",
+          okButtonText: "OK",
+          defaultText: "1234",
+          inputType: dialogs.inputType.phone
+      }).then((promptResult) => {
+          console.log("### Result: " + promptResult.result + ", Text: " + promptResult.text);
+          if (promptResult.result) {
+              this.set("name", promptResult.text);
+          }
+          else {
+              this.set("name", "1234");
+          }
+      });
+    }
+
     public promptCapitalizationNone(args: observable.EventData) {
         dialogs.prompt({
             title: "Name",
diff --git a/tests/app/ui/helper.ts b/tests/app/ui/helper.ts
index 5d3c4ff81..0f8509712 100644
--- a/tests/app/ui/helper.ts
+++ b/tests/app/ui/helper.ts
@@ -209,8 +209,8 @@ export function waitUntilNavigatedTo(page: Page, action: Function) {
     TKUnit.waitUntilReady(() => completed, 5);
 }
 
-export function waitUntilNavigatedFrom(action: Function) {
-    const currentPage = frame.topmost().currentPage;
+export function waitUntilNavigatedFrom(action: Function, topFrame?: frame.Frame) {
+    const currentPage = topFrame ? topFrame.currentPage : frame.topmost().currentPage;
     let completed = false;
     function navigatedFrom(args) {
         args.object.page.off("navigatedFrom", navigatedFrom);
@@ -226,19 +226,19 @@ export function waitUntilLayoutReady(view: View): void {
     TKUnit.waitUntilReady(() => view.isLayoutValid);
 }
 
-export function navigateWithEntry(entry: frame.NavigationEntry): Page {
+export function navigateWithEntry(entry: frame.NavigationEntry, topFrame?: frame.Frame): Page {
     const page = createViewFromEntry(entry) as Page;
     entry.moduleName = null;
     entry.create = function () {
         return page;
     };
 
-    waitUntilNavigatedFrom(() => frame.topmost().navigate(entry));
+    waitUntilNavigatedFrom(() => topFrame ? topFrame.navigate(entry) : frame.topmost().navigate(entry));
     return page;
 }
 
-export function goBack() {
-    waitUntilNavigatedFrom(() => frame.topmost().goBack());
+export function goBack(topFrame?: frame.Frame) {
+    waitUntilNavigatedFrom(() => topFrame ? topFrame.goBack() : frame.topmost().goBack());
 }
 
 export function assertAreClose(actual: number, expected: number, message: string): void {
diff --git a/tests/app/ui/layouts/safe-area-tests.ts b/tests/app/ui/layouts/safe-area-tests.ts
index ec6e7aeca..befc69138 100644
--- a/tests/app/ui/layouts/safe-area-tests.ts
+++ b/tests/app/ui/layouts/safe-area-tests.ts
@@ -6,6 +6,8 @@ import * as platform from "tns-core-modules/platform";
 import { ios as iosUtils } from "tns-core-modules/utils/utils";
 import * as helper from "../helper";
 import { parse } from "tns-core-modules/ui/builder";
+import { Page } from "tns-core-modules/ui/page";
+import { Label } from "tns-core-modules/ui/label";
 import {
     dipToDp, left, top, right, bottom, height, width,
     equal, closeEnough, lessOrCloseEnough, greaterOrCloseEnough, check,
@@ -37,6 +39,30 @@ export class SafeAreaTests extends testModule.UITest<any> {
         // no operation
     };
 
+    public test_layout_changed_event_count() {
+        const page = <Page>parse(`
+        <Page>
+            <GridLayout id="grid" backgroundColor="Crimson">
+                <Label id="label" text="label1" backgroundColor="Gold"></Label>
+            </GridLayout>
+        </Page>
+        `);
+        let gridLayoutChangedCounter = 0;
+        let labelLayoutChangedCounter = 0;
+        const grid = page.getViewById("grid");
+        grid.on(view.View.layoutChangedEvent, () => {
+            gridLayoutChangedCounter++;
+        });
+        const label = <Label>page.getViewById("label");
+        label.on(view.View.layoutChangedEvent, () => {
+            labelLayoutChangedCounter++;
+        });
+        helper.navigate(() => page);
+        label.height = 100;
+        TKUnit.waitUntilReady(() => labelLayoutChangedCounter === 2);
+        TKUnit.assert(gridLayoutChangedCounter === 1, `${grid} layoutChanged event count - actual:${gridLayoutChangedCounter}; expected: 1`)
+    }
+
     // Common
     private getViews(template: string) {
         let root = parse(template);
diff --git a/tests/app/ui/tab-view/tab-view-navigation-tests.ts b/tests/app/ui/tab-view/tab-view-navigation-tests.ts
index fb202a8a8..929012885 100644
--- a/tests/app/ui/tab-view/tab-view-navigation-tests.ts
+++ b/tests/app/ui/tab-view/tab-view-navigation-tests.ts
@@ -4,7 +4,7 @@ import { isIOS, isAndroid } from "tns-core-modules/platform";
 import { Label } from "tns-core-modules/ui/label";
 import { StackLayout } from "tns-core-modules/ui/layouts/stack-layout";
 import * as frameModule from "tns-core-modules/ui/frame";
-import { Page } from "tns-core-modules/ui/page";
+import { Page, NavigatedData } from "tns-core-modules/ui/page";
 import { ListView, ItemEventData } from "tns-core-modules/ui/list-view";
 import { TabView, TabViewItem } from "tns-core-modules/ui/tab-view";
 import { Button } from "tns-core-modules/ui/button";
@@ -68,6 +68,56 @@ function _clickHandlerFactory(index: number) {
     }
 }
 
+function _createFrameView(): frameModule.Frame {
+    const frame = new frameModule.Frame();
+    frame.navigate({ create: () => new Page() });
+    return frame;
+}
+
+export function testBackNavigationToTabViewWithNestedFramesShouldWork() {
+    // https://github.com/NativeScript/NativeScript/issues/6490
+    const topFrame = frameModule.topmost();
+
+    let tabViewPage: Page;
+    let tabView: TabView;
+
+    const pageFactory = function (): Page {
+        tabView = _createTabView();
+        let items = Array<TabViewItem>();
+        let tabViewitem = new TabViewItem();
+        tabViewitem.title = "Item1";
+        tabViewitem.view = _createFrameView();
+        items.push(tabViewitem);
+
+        let tabViewitem2 = new TabViewItem();
+        tabViewitem2.title = "Item2";
+        tabViewitem2.view = _createFrameView();
+        items.push(tabViewitem2);
+
+        tabView.items = items;
+
+        tabViewPage = new Page();
+        tabViewPage.id = "tab-view-page";
+        tabViewPage.content = tabView;
+
+        return tabViewPage;
+    }
+
+    helper.waitUntilNavigatedFrom(() => topFrame.navigate(pageFactory), topFrame);
+
+    TKUnit.waitUntilReady(() => topFrame.currentPage === tabViewPage);
+    TKUnit.waitUntilReady(() => tabViewIsFullyLoaded(tabView));
+
+    // navigate to a different page
+    helper.waitUntilNavigatedFrom(() => topFrame.navigate({ create: () => new Page(), animated: false }), topFrame);
+
+    // navigate back to the page that hold the tabview with nested frames
+    topFrame.goBack();
+
+    // make sure the app did not crash
+    TKUnit.waitUntilReady(() => topFrame.navigationQueueIsEmpty());
+}
+
 export function testWhenNavigatingBackToANonCachedPageContainingATabViewWithAListViewTheListViewIsThere() {
     var topFrame = frameModule.topmost();
 
diff --git a/tests/package.json b/tests/package.json
index b05b37039..eab3e58c4 100644
--- a/tests/package.json
+++ b/tests/package.json
@@ -6,10 +6,10 @@
   "nativescript": {
     "id": "org.nativescript.UnitTestApp",
     "tns-ios": {
-      "version": "4.2.0"
+      "version": "5.0.0"
     },
     "tns-android": {
-      "version": "4.2.0"
+      "version": "5.0.0"
     }
   },
   "dependencies": {
diff --git a/tns-core-modules/package.json b/tns-core-modules/package.json
index 12a93bfef..ec101a84b 100644
--- a/tns-core-modules/package.json
+++ b/tns-core-modules/package.json
@@ -1,7 +1,7 @@
 {
   "name": "tns-core-modules",
   "description": "Telerik NativeScript Core Modules",
-  "version": "5.0.2",
+  "version": "5.1.0",
   "homepage": "https://www.nativescript.org",
   "repository": {
     "type": "git",
@@ -26,7 +26,7 @@
   "license": "Apache-2.0",
   "typings": "tns-core-modules.d.ts",
   "dependencies": {
-    "tns-core-modules-widgets": "5.0.1",
+    "tns-core-modules-widgets": "next",
     "tslib": "^1.9.3"
   },
   "devDependencies": {
diff --git a/tns-core-modules/ui/core/view/view.ios.ts b/tns-core-modules/ui/core/view/view.ios.ts
index 8352f7ae6..fe4e125d2 100644
--- a/tns-core-modules/ui/core/view/view.ios.ts
+++ b/tns-core-modules/ui/core/view/view.ios.ts
@@ -190,6 +190,9 @@ export class View extends ViewCommon {
         } else if (!this._isLaidOut) {
             // Rects could be equal on the first layout and an event should be raised.
             this._raiseLayoutChangedEvent();
+            // But make sure event is raised only once if rects are equal on the first layout as
+            // this method is called twice with equal rects in landscape mode (vs only once in portrait)
+            this._isLaidOut = true;
         }
     }
 
diff --git a/tns-core-modules/ui/dialogs/dialogs-common.ts b/tns-core-modules/ui/dialogs/dialogs-common.ts
index 441c6a366..84847036a 100644
--- a/tns-core-modules/ui/dialogs/dialogs-common.ts
+++ b/tns-core-modules/ui/dialogs/dialogs-common.ts
@@ -31,6 +31,16 @@ export module inputType {
      * Email input type.
      */
     export const email: string = "email";
+
+    /**
+     * Number input type
+     */
+    export const number: string = "number";
+
+    /**
+     * Phone input type
+     */
+    export const phone: string = "phone";
 }
 
 /**
diff --git a/tns-core-modules/ui/dialogs/dialogs.android.ts b/tns-core-modules/ui/dialogs/dialogs.android.ts
index 7d6c81d33..adf18020d 100644
--- a/tns-core-modules/ui/dialogs/dialogs.android.ts
+++ b/tns-core-modules/ui/dialogs/dialogs.android.ts
@@ -184,6 +184,10 @@ export function prompt(arg: any): Promise<PromptResult> {
                     input.setInputType(android.text.InputType.TYPE_CLASS_TEXT | android.text.InputType.TYPE_TEXT_VARIATION_PASSWORD);
                 } else if (options.inputType === inputType.email) {
                     input.setInputType(android.text.InputType.TYPE_CLASS_TEXT | android.text.InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS);
+                } else if (options.inputType === inputType.number) {
+                  input.setInputType(android.text.InputType.TYPE_CLASS_NUMBER);
+                } else if (options.inputType === inputType.phone) {
+                  input.setInputType(android.text.InputType.TYPE_CLASS_PHONE);
                 }
 
                 switch (options.capitalizationType) {
diff --git a/tns-core-modules/ui/dialogs/dialogs.d.ts b/tns-core-modules/ui/dialogs/dialogs.d.ts
index 9921f8761..0c2a68521 100644
--- a/tns-core-modules/ui/dialogs/dialogs.d.ts
+++ b/tns-core-modules/ui/dialogs/dialogs.d.ts
@@ -21,6 +21,16 @@ export module inputType {
      * Email input type.
      */
     export var email: string;
+
+    /**
+     * Number input type.
+     */
+    export var number: string;
+
+    /**
+     * Phone input type.
+     */
+    export var phone: string;
 }
 
 /**
@@ -81,7 +91,7 @@ export function prompt(message: string, defaultText?: string): Promise<PromptRes
 
 /**
  * The prompt() method displays a dialog box that prompts the visitor for input.
- * @param options The options for the dialog box. 
+ * @param options The options for the dialog box.
  */
 export function prompt(options: PromptOptions): Promise<PromptResult>;
 
@@ -95,7 +105,7 @@ export function login(message: string, userName?: string, password?: string): Pr
 
 /**
  * The login() method displays a login dialog box that prompts the visitor for user name and password.
- * @param options The options for the dialog box. 
+ * @param options The options for the dialog box.
  */
 export function login(options: LoginOptions): Promise<LoginResult>;
 
@@ -109,7 +119,7 @@ export function action(message: string, cancelButtonText: string, actions: Array
 
 /**
  * The action() method displays a action box that prompts the visitor to choose some action.
- * @param options The options for the dialog box. 
+ * @param options The options for the dialog box.
  */
 export function action(options: ActionOptions): Promise<string>;
 
diff --git a/tns-core-modules/ui/dialogs/dialogs.ios.ts b/tns-core-modules/ui/dialogs/dialogs.ios.ts
index bf748c09d..39e9bad00 100644
--- a/tns-core-modules/ui/dialogs/dialogs.ios.ts
+++ b/tns-core-modules/ui/dialogs/dialogs.ios.ts
@@ -104,6 +104,10 @@ export function prompt(arg: any): Promise<PromptResult> {
 
                 if (options && options.inputType === inputType.email) {
                     arg.keyboardType = UIKeyboardType.EmailAddress;
+                } else if (options && options.inputType === inputType.number) {
+                    arg.keyboardType = UIKeyboardType.NumberPad;
+                } else if (options && options.inputType === inputType.phone) {
+                    arg.keyboardType = UIKeyboardType.PhonePad;
                 }
 
                 let color = getTextFieldColor();
diff --git a/tns-platform-declarations/package.json b/tns-platform-declarations/package.json
index 3751ce17d..2025046f0 100644
--- a/tns-platform-declarations/package.json
+++ b/tns-platform-declarations/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tns-platform-declarations",
-  "version": "5.0.2",
+  "version": "5.1.0",
   "description": "Platform-specific TypeScript declarations for NativeScript for accessing native objects",
   "main": "",
   "scripts": {