diff --git a/angular.json b/angular.json
index e2800a218d3..c20114a35a2 100644
--- a/angular.json
+++ b/angular.json
@@ -175,6 +175,12 @@
         "test": {
           "builder": "@angular-devkit/build-angular:karma",
           "options": {
+            "fileReplacements": [
+              {
+                "replace": "components/core/environments/environment.ts",
+                "with": "components/core/environments/environment.test.ts"
+              }
+            ],
             "main": "components/test.ts",
             "karmaConfig": "components/karma.conf.js",
             "polyfills": "components/polyfills.ts",
diff --git a/components/breadcrumb/nz-breadcrumb.component.ts b/components/breadcrumb/nz-breadcrumb.component.ts
index 0945577f8f7..18995c9b2a6 100755
--- a/components/breadcrumb/nz-breadcrumb.component.ts
+++ b/components/breadcrumb/nz-breadcrumb.component.ts
@@ -25,7 +25,7 @@ import { Subject } from 'rxjs';
 import { startWith } from 'rxjs/internal/operators/startWith';
 import { filter, takeUntil } from 'rxjs/operators';
 
-import { InputBoolean } from 'ng-zorro-antd/core';
+import { InputBoolean, PREFIX } from 'ng-zorro-antd/core';
 
 export const NZ_ROUTE_DATA_BREADCRUMB = 'breadcrumb';
 
@@ -107,7 +107,7 @@ export class NzBreadCrumbComponent implements OnInit, OnDestroy {
           this.cdr.markForCheck();
         });
     } catch (e) {
-      throw new Error('[NG-ZORRO] You should import RouterModule if you want to use `NzAutoGenerate`');
+      throw new Error(`${PREFIX} You should import RouterModule if you want to use 'NzAutoGenerate'.`);
     }
   }
 
diff --git a/components/empty/nz-empty-error.ts b/components/core/environments/environment.test.ts
similarity index 52%
rename from components/empty/nz-empty-error.ts
rename to components/core/environments/environment.test.ts
index 4d9e65ebd51..462fef069be 100644
--- a/components/empty/nz-empty-error.ts
+++ b/components/core/environments/environment.test.ts
@@ -6,7 +6,6 @@
  * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
  */
 
-// tslint:disable-next-line:no-any
-export function getEmptyContentTypeError(content: any): Error {
-  return TypeError(`[NG-ZORRO]: useDefaultContent expect 'string', 'templateRef' or 'component' but get ${content}`);
-}
+export const environment = {
+  isTestMode: true
+};
diff --git a/components/core/environments/environment.ts b/components/core/environments/environment.ts
new file mode 100644
index 00000000000..fc593ffa3a9
--- /dev/null
+++ b/components/core/environments/environment.ts
@@ -0,0 +1,11 @@
+/**
+ * @license
+ * Copyright Alibaba.com All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
+ */
+
+export const environment = {
+  isTestMode: false
+};
diff --git a/components/core/logger/logger.module.ts b/components/core/logger/logger.module.ts
deleted file mode 100644
index 275ab80b815..00000000000
--- a/components/core/logger/logger.module.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-/**
- * @license
- * Copyright Alibaba.com All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
- */
-
-import { NgModule } from '@angular/core';
-
-import { LOGGER_SERVICE_PROVIDER, NZ_LOGGER_STATE } from './logger.service';
-
-@NgModule({
-  providers: [{ provide: NZ_LOGGER_STATE, useValue: false }, LOGGER_SERVICE_PROVIDER]
-})
-export class LoggerModule {}
diff --git a/components/core/logger/logger.service.ts b/components/core/logger/logger.service.ts
deleted file mode 100644
index f76789f794e..00000000000
--- a/components/core/logger/logger.service.ts
+++ /dev/null
@@ -1,61 +0,0 @@
-/**
- * @license
- * Copyright Alibaba.com All Rights Reserved.
- *
- * Use of this source code is governed by an MIT-style license that can be
- * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
- */
-
-import { Inject, Injectable, InjectionToken, Optional, Provider, SkipSelf } from '@angular/core';
-
-export const NZ_LOGGER_STATE = new InjectionToken<boolean>('nz-logger-state'); // Whether print the log
-
-@Injectable()
-export class LoggerService {
-  constructor(@Inject(NZ_LOGGER_STATE) private _loggerState: boolean) {}
-
-  // tslint:disable-next-line:no-any
-  log(...args: any[]): void {
-    if (this._loggerState) {
-      console.log(...args);
-    }
-  }
-
-  // tslint:disable-next-line:no-any
-  warn(...args: any[]): void {
-    if (this._loggerState) {
-      console.warn(...args);
-    }
-  }
-
-  // tslint:disable-next-line:no-any
-  error(...args: any[]): void {
-    if (this._loggerState) {
-      console.error(...args);
-    }
-  }
-
-  // tslint:disable-next-line:no-any
-  info(...args: any[]): void {
-    if (this._loggerState) {
-      console.log(...args);
-    }
-  }
-
-  // tslint:disable-next-line:no-any
-  debug(...args: any[]): void {
-    if (this._loggerState) {
-      console.log('[NG-ZORRO-DEBUG]', ...args);
-    }
-  }
-}
-
-export function LOGGER_SERVICE_PROVIDER_FACTORY(exist: LoggerService, loggerState: boolean): LoggerService {
-  return exist || new LoggerService(loggerState);
-}
-
-export const LOGGER_SERVICE_PROVIDER: Provider = {
-  provide: LoggerService,
-  useFactory: LOGGER_SERVICE_PROVIDER_FACTORY,
-  deps: [[new Optional(), new SkipSelf(), LoggerService], NZ_LOGGER_STATE]
-};
diff --git a/components/core/logger/logger.ts b/components/core/logger/logger.ts
new file mode 100644
index 00000000000..8be6dcb100d
--- /dev/null
+++ b/components/core/logger/logger.ts
@@ -0,0 +1,46 @@
+/**
+ * @license
+ * Copyright Alibaba.com All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
+ */
+
+// tslint:disable:no-any
+import { environment } from '../environments/environment';
+
+import { isDevMode } from '@angular/core';
+
+const record: Record<string, boolean> = {};
+
+export const PREFIX = '[NG-ZORRO]:';
+
+function notRecorded(...args: any[]): boolean {
+  const asRecord = args.reduce((acc, c) => acc + c.toString(), '');
+
+  if (record[asRecord]) {
+    return false;
+  } else {
+    record[asRecord] = true;
+    return true;
+  }
+}
+
+function consoleCommonBehavior(consoleFunc: (...args: any) => void, ...args: any[]): void {
+  if (environment.isTestMode || (isDevMode() && notRecorded(...args))) {
+    consoleFunc(...args);
+  }
+}
+
+// Warning should only be printed in dev mode and only once.
+export const warn = (...args: any[]) => consoleCommonBehavior((...arg: any[]) => console.warn(PREFIX, ...arg), ...args);
+
+export const warnDeprecation = (...args: any[]) =>
+  consoleCommonBehavior((...arg: any[]) => console.error(PREFIX, 'deprecated:', ...arg), ...args);
+
+// Log should only be printed in dev mode.
+export const log = (...args: any[]) => {
+  if (isDevMode()) {
+    console.log(PREFIX, ...args);
+  }
+};
diff --git a/components/core/logger/public-api.ts b/components/core/logger/public-api.ts
index a8ef20eb685..cb8dd555af4 100644
--- a/components/core/logger/public-api.ts
+++ b/components/core/logger/public-api.ts
@@ -6,10 +6,4 @@
  * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
  */
 
-export { LoggerModule } from './logger.module';
-export {
-  LoggerService,
-  NZ_LOGGER_STATE,
-  LOGGER_SERVICE_PROVIDER,
-  LOGGER_SERVICE_PROVIDER_FACTORY
-} from './logger.service';
+export * from './logger';
diff --git a/components/core/tree/nz-tree-base-node.ts b/components/core/tree/nz-tree-base-node.ts
index 583f39ace44..270c9cae575 100644
--- a/components/core/tree/nz-tree-base-node.ts
+++ b/components/core/tree/nz-tree-base-node.ts
@@ -6,6 +6,7 @@
  * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
  */
 
+import { warnDeprecation } from '../logger/logger';
 import { NzTreeNodeBaseComponent } from './nz-tree-base.definitions';
 import { NzTreeBaseService } from './nz-tree-base.service';
 
@@ -167,9 +168,10 @@ export class NzTreeNode {
   }
 
   /**
-   * @deprecated Maybe removed in next major version, use isChecked instead
+   * @deprecated Maybe removed in next major version, use `isChecked` instead.
    */
   set isAllChecked(value: boolean) {
+    warnDeprecation(`'isAllChecked' is going to be removed in 9.0.0. Please use 'isChecked' instead.`);
     this._isAllChecked = value;
   }
 
@@ -246,9 +248,10 @@ export class NzTreeNode {
   }
 
   /**
-   * @deprecated Maybe removed in next major version, use isChecked instead
+   * @deprecated Maybe removed in next major version, use `isChecked` instead.
    */
   public setChecked(checked: boolean = false, halfChecked: boolean = false): void {
+    warnDeprecation(`'setChecked' is going to be removed in 9.0.0. Please use 'isChecked' instead.`);
     this.origin.checked = checked;
     this.isChecked = checked;
     this.isAllChecked = checked;
@@ -256,16 +259,18 @@ export class NzTreeNode {
   }
 
   /**
-   * @deprecated Maybe removed in next major version, use isExpanded instead
+   * @deprecated Maybe removed in next major version, use `isExpanded` instead.
    */
   public setExpanded(value: boolean): void {
+    warnDeprecation(`'setExpanded' is going to be removed in 9.0.0. Please use 'isExpanded' instead.`);
     this.isExpanded = value;
   }
 
   /**
-   * @deprecated Maybe removed in next major version, use isSelected instead
+   * @deprecated Maybe removed in next major version, use `isSelected` instead.
    */
   public setSelected(value: boolean): void {
+    warnDeprecation(`'setSelected' is going to be removed in 9.0.0. Please use 'isExpanded' isSelected.`);
     if (this.isDisabled) {
       return;
     }
diff --git a/components/core/util/convert.ts b/components/core/util/convert.ts
index 772bb96d977..a801f3a0ebd 100644
--- a/components/core/util/convert.ts
+++ b/components/core/util/convert.ts
@@ -8,6 +8,7 @@
 
 import { coerceBooleanProperty, coerceCssPixelValue, _isNumberValue } from '@angular/cdk/coercion';
 
+import { warn } from '../logger/logger';
 import { FunctionProp } from '../types/common-wrap';
 
 export function toBoolean(value: boolean | string): boolean {
@@ -39,7 +40,7 @@ function propDecoratorFactory<T, D>(name: string, fallback: (v: T) => D): (targe
     const privatePropName = `$$__${propName}`;
 
     if (Object.prototype.hasOwnProperty.call(target, privatePropName)) {
-      console.warn(`The prop "${privatePropName}" is already exist, it will be overrided by ${name} decorator.`);
+      warn(`The prop "${privatePropName}" is already exist, it will be overrided by ${name} decorator.`);
     }
 
     Object.defineProperty(target, privatePropName, {
diff --git a/components/core/util/textarea-caret-position.ts b/components/core/util/textarea-caret-position.ts
index f68333c344f..d6ca5316e7e 100644
--- a/components/core/util/textarea-caret-position.ts
+++ b/components/core/util/textarea-caret-position.ts
@@ -175,6 +175,4 @@ export function createDebugEle(element: HTMLInputElement | HTMLTextAreaElement,
     element.scrollLeft +
     window.pageXOffset +
     coordinates.left}px`;
-  console.log(rect.style.top);
-  console.log(rect.style.left);
 }
diff --git a/components/empty/nz-empty.service.ts b/components/empty/nz-empty.service.ts
index 6c55bae06a7..16273d48d8a 100644
--- a/components/empty/nz-empty.service.ts
+++ b/components/empty/nz-empty.service.ts
@@ -8,8 +8,10 @@
 
 import { Inject, Injectable, Optional, TemplateRef, Type } from '@angular/core';
 import { BehaviorSubject } from 'rxjs';
+
+import { PREFIX } from 'ng-zorro-antd/core';
+
 import { NzEmptyCustomContent, NZ_DEFAULT_EMPTY_CONTENT } from './nz-empty-config';
-import { getEmptyContentTypeError } from './nz-empty-error';
 
 @Injectable({
   providedIn: 'root'
@@ -34,7 +36,9 @@ export class NzEmptyService<T = any> {
     ) {
       this.userDefaultContent$.next(content);
     } else {
-      throw getEmptyContentTypeError(content);
+      throw new Error(
+        `${PREFIX} 'useDefaultContent' expect 'string', 'templateRef' or 'component' but get ${content}.`
+      );
     }
   }
 
diff --git a/components/i18n/date-helper.service.ts b/components/i18n/date-helper.service.ts
index 6f48406c492..0799a087a12 100644
--- a/components/i18n/date-helper.service.ts
+++ b/components/i18n/date-helper.service.ts
@@ -11,6 +11,9 @@ import { Inject, Injectable, Injector, Optional } from '@angular/core';
 import fnsFormat from 'date-fns/format';
 import fnsGetISOWeek from 'date-fns/get_iso_week';
 import fnsParse from 'date-fns/parse';
+
+import { warnDeprecation } from 'ng-zorro-antd/core';
+
 import { mergeDateConfig, NzDateConfig, NZ_DATE_CONFIG } from './date-config';
 import { NzI18nService } from './nz-i18n.service';
 
@@ -81,13 +84,19 @@ export class DateHelperByDateFns extends DateHelperService {
 
 /**
  * DateHelper that handles date formats with angular's date-pipe
- * [BUG] Use DatePipe may cause non-standard week bug, see: https://github.com/NG-ZORRO/ng-zorro-antd/issues/2406
  *
- * @deprecated Maybe removed in next major version due to this serious bug
+ * @see https://github.com/NG-ZORRO/ng-zorro-antd/issues/2406 - DatePipe may cause non-standard week bug, see:
+ *
+ * @deprecated 9.0.0 - `DateHelperByDatePipe` would be removed in 9.0.0 due to the serious bug above, unless it's get fixed.
+ *   Please use `DateHelperByDateFns` instead.
  */
 export class DateHelperByDatePipe extends DateHelperService {
   constructor(i18n: NzI18nService, @Optional() @Inject(NZ_DATE_CONFIG) config: NzDateConfig) {
     super(i18n, config);
+
+    warnDeprecation(
+      `'DateHelperByDatePipe' would be removed in 9.0.0 due to this serious bug of Angular: https://github.com/NG-ZORRO/ng-zorro-antd/issues/2406. Please use 'DateHelperByDateFns' instead.`
+    );
   }
 
   getISOWeek(date: Date): number {
diff --git a/components/i18n/nz-i18n.module.ts b/components/i18n/nz-i18n.module.ts
index 7e8a3df32d3..f3801ed9753 100644
--- a/components/i18n/nz-i18n.module.ts
+++ b/components/i18n/nz-i18n.module.ts
@@ -7,11 +7,10 @@
  */
 
 import { NgModule } from '@angular/core';
-import { LoggerModule } from 'ng-zorro-antd/core';
+
 import { NzI18nPipe } from './nz-i18n.pipe';
 
 @NgModule({
-  imports: [LoggerModule],
   declarations: [NzI18nPipe],
   exports: [NzI18nPipe]
 })
diff --git a/components/icon/nz-icon.service.ts b/components/icon/nz-icon.service.ts
index 68fbd74ef5e..35f314edcdc 100644
--- a/components/icon/nz-icon.service.ts
+++ b/components/icon/nz-icon.service.ts
@@ -47,6 +47,7 @@ import {
   UploadOutline,
   UpOutline
 } from '@ant-design/icons-angular/icons';
+import { warn } from 'ng-zorro-antd/core';
 
 export interface NzIconfontOption {
   scriptUrl: string;
@@ -101,22 +102,16 @@ export const NZ_ICONS_USED_BY_ZORRO: IconDefinition[] = [
 })
 export class NzIconService extends IconService {
   private iconfontCache = new Set<string>();
-  private warnedAboutAPI = false;
-  private warnedAboutCross = false;
-  private warnedAboutVertical = false;
 
   warnAPI(type: 'old' | 'cross' | 'vertical'): void {
-    if (type === 'old' && !this.warnedAboutAPI) {
-      console.warn(`<i class="anticon"></i> would be deprecated soon. Please use <i nz-icon type=""></i> API.`);
-      this.warnedAboutAPI = true;
+    if (type === 'old') {
+      warn(`<i class="anticon"></i> would be deprecated in 9.0.0. Please use <i nz-icon nzType=""></i> API.`);
     }
-    if (type === 'cross' && !this.warnedAboutCross) {
-      console.warn(`'cross' icon is replaced by 'close' icon.`);
-      this.warnedAboutCross = true;
+    if (type === 'cross') {
+      warn(`'cross' icon is replaced by 'close' icon.`);
     }
-    if (type === 'vertical' && !this.warnedAboutVertical) {
-      console.warn(`'verticle' is misspelled, would be corrected in the next major version.`);
-      this.warnedAboutVertical = true;
+    if (type === 'vertical') {
+      warn(`'verticle' is misspelled, would be corrected in the next major version.`);
     }
   }
 
@@ -166,7 +161,7 @@ export class NzIconService extends IconService {
       if (this.defaultColor.startsWith('#')) {
         primaryColor = this.defaultColor;
       } else {
-        console.warn('[NG-ZORRO]: twotone color must be a hex color!');
+        warn('Twotone color must be a hex color!');
       }
     }
     this.twoToneColor = { primaryColor };
diff --git a/components/modal/nz-modal.module.ts b/components/modal/nz-modal.module.ts
index 96d8e016564..fcc3e674a90 100644
--- a/components/modal/nz-modal.module.ts
+++ b/components/modal/nz-modal.module.ts
@@ -11,7 +11,7 @@ import { CommonModule } from '@angular/common';
 import { NgModule } from '@angular/core';
 
 import { NzButtonModule } from 'ng-zorro-antd/button';
-import { LoggerModule, NzNoAnimationModule } from 'ng-zorro-antd/core';
+import { NzNoAnimationModule } from 'ng-zorro-antd/core';
 import { NzI18nModule } from 'ng-zorro-antd/i18n';
 import { NzIconModule } from 'ng-zorro-antd/icon';
 
@@ -21,7 +21,7 @@ import { NzModalComponent } from './nz-modal.component';
 import { NzModalService } from './nz-modal.service';
 
 @NgModule({
-  imports: [CommonModule, OverlayModule, NzI18nModule, NzButtonModule, LoggerModule, NzIconModule, NzNoAnimationModule],
+  imports: [CommonModule, OverlayModule, NzI18nModule, NzButtonModule, NzIconModule, NzNoAnimationModule],
   exports: [NzModalComponent],
   declarations: [NzModalComponent, CssUnitPipe],
   entryComponents: [NzModalComponent],
diff --git a/components/modal/nz-modal.service.ts b/components/modal/nz-modal.service.ts
index ba031593e32..e4a566aa106 100644
--- a/components/modal/nz-modal.service.ts
+++ b/components/modal/nz-modal.service.ts
@@ -11,7 +11,7 @@ import { ComponentPortal } from '@angular/cdk/portal';
 import { ComponentRef, Injectable } from '@angular/core';
 import { Observable } from 'rxjs';
 
-import { IndexableObject, LoggerService } from 'ng-zorro-antd/core';
+import { warn, IndexableObject } from 'ng-zorro-antd/core';
 
 import { NzModalControlService } from './nz-modal-control.service';
 import { NzModalRef } from './nz-modal-ref.class';
@@ -72,7 +72,7 @@ export class NzModalService {
     return this.modalControl.afterAllClose.asObservable();
   }
 
-  constructor(private overlay: Overlay, private logger: LoggerService, private modalControl: NzModalControlService) {}
+  constructor(private overlay: Overlay, private modalControl: NzModalControlService) {}
 
   // Closes all of the currently-open dialogs
   closeAll(): void {
@@ -92,7 +92,7 @@ export class NzModalService {
 
   confirm<T>(options: ModalOptionsForService<T> = {}, confirmType: ConfirmType = 'confirm'): NzModalRef<T> {
     if ('nzFooter' in options) {
-      this.logger.warn(`The Confirm-Modal doesn't support "nzFooter", this property will be ignored.`);
+      warn(`The Confirm-Modal doesn't support "nzFooter", this property will be ignored.`);
     }
     if (!('nzWidth' in options)) {
       options.nzWidth = 416;
diff --git a/components/modal/nz-modal.spec.ts b/components/modal/nz-modal.spec.ts
index 324e16e0351..d2952efcaf2 100644
--- a/components/modal/nz-modal.spec.ts
+++ b/components/modal/nz-modal.spec.ts
@@ -293,17 +293,14 @@ describe('modal testing (legacy)', () => {
     });
 
     it('boundary detection for options', fakeAsync(() => {
-      // @ts-ignore
-      const logger = instance.modalService.logger;
-      spyOn(logger, 'warn');
+      spyOn(console, 'warn');
 
       const tempModalId = generateUniqueId();
       const modalAgent = instance.createConfirm() as NzModalRef;
       const modalElement = modalAgent.getElement();
       modalElement.classList.add(tempModalId);
       fixture.detectChanges();
-      // nzFooter
-      expect(logger.warn).toHaveBeenCalled();
+      expect(console.warn).toHaveBeenCalled();
       // nzOnOk: close modal when clicked
       getButtonOk(modalElement).click();
       fixture.detectChanges();
diff --git a/components/ng-zorro-antd.module.ts b/components/ng-zorro-antd.module.ts
index 6304d925c33..1bb926c7892 100644
--- a/components/ng-zorro-antd.module.ts
+++ b/components/ng-zorro-antd.module.ts
@@ -16,7 +16,7 @@ import { NzCascaderModule } from 'ng-zorro-antd/cascader';
 import { NzCheckboxModule } from 'ng-zorro-antd/checkbox';
 import { NzCollapseModule } from 'ng-zorro-antd/collapse';
 import { NzCommentModule } from 'ng-zorro-antd/comment';
-import { NzNoAnimationModule, NzWaveModule } from 'ng-zorro-antd/core';
+import { warnDeprecation, NzNoAnimationModule, NzWaveModule } from 'ng-zorro-antd/core';
 import { NzDatePickerModule } from 'ng-zorro-antd/date-picker';
 import { NzDescriptionsModule } from 'ng-zorro-antd/descriptions';
 import { NzDividerModule } from 'ng-zorro-antd/divider';
@@ -196,6 +196,9 @@ export class NgZorroAntdModule {
    * @deprecated Use `NgZorroAntdModule` instead.
    */
   static forRoot(): ModuleWithProviders {
+    warnDeprecation(
+      `'forRoot' is not recommended if you are using Angular 6.0.0+. This API is going to be removed in 9.0.0.`
+    );
     return {
       ngModule: NgZorroAntdModule
     };
diff --git a/components/tree/nz-tree-node.component.ts b/components/tree/nz-tree-node.component.ts
index 6bfd00fdcb0..6575e08b548 100644
--- a/components/tree/nz-tree-node.component.ts
+++ b/components/tree/nz-tree-node.component.ts
@@ -28,6 +28,7 @@ import { filter, takeUntil } from 'rxjs/operators';
 
 import {
   collapseMotion,
+  warnDeprecation,
   InputBoolean,
   NzFormatBeforeDropEvent,
   NzNoAnimationDirective,
@@ -73,11 +74,11 @@ export class NzTreeNodeComponent implements OnInit, OnChanges, OnDestroy {
   }
 
   /**
-   * @deprecated use
-   * nzExpandAll instead
+   * @deprecated use `nzExpandAll` instead.
    */
   @Input()
   set nzDefaultExpandAll(value: boolean) {
+    warnDeprecation(`'nzDefaultExpandAll' is going to be removed in 9.0.0. Please use 'nzExpandAll' instead.`);
     this._nzExpandAll = value;
     if (value && this.nzTreeNode && !this.nzTreeNode.isLeaf) {
       this.nzTreeNode.isExpanded = true;
diff --git a/components/tree/nz-tree.component.ts b/components/tree/nz-tree.component.ts
index 9fb2994af45..b1f09630af3 100644
--- a/components/tree/nz-tree.component.ts
+++ b/components/tree/nz-tree.component.ts
@@ -31,6 +31,7 @@ import { takeUntil } from 'rxjs/operators';
 import {
   isNotNil,
   toBoolean,
+  warnDeprecation,
   InputBoolean,
   NzFormatBeforeDropEvent,
   NzFormatEmitEvent,
@@ -77,7 +78,7 @@ export class NzTreeComponent extends NzTreeBase implements OnInit, OnDestroy, Co
   @Input() @InputBoolean() nzCheckable = false;
   @Input() @InputBoolean() nzAsyncData = false;
   @Input() @InputBoolean() nzDraggable = false;
-  @Input() @InputBoolean() nzExpandAll = false;
+
   @Input() @InputBoolean() nzHideUnMatched = false;
   @Input() @InputBoolean() nzSelectMode = false;
   @Input() @InputBoolean() nzCheckStrictly = false;
@@ -85,11 +86,24 @@ export class NzTreeComponent extends NzTreeBase implements OnInit, OnDestroy, Co
 
   @Input() @ContentChild('nzTreeTemplate', { static: true }) nzTreeTemplate: TemplateRef<{ $implicit: NzTreeNode }>;
 
+  @Input() @InputBoolean() nzExpandAll = false;
+
   /**
-   * @deprecated use
-   * nzExpandAll instead
+   * @deprecated 9.0.0 use `nzExpandAll` instead.
    */
-  @Input() @InputBoolean() nzDefaultExpandAll = false;
+  @Input()
+  @InputBoolean()
+  set nzDefaultExpandAll(value: boolean) {
+    warnDeprecation(`'nzDefaultExpandAll' would be removed in 9.0.0. Please use 'nzExpandAll' instead.`);
+    this._nzDefaultExpandAll = value;
+  }
+
+  get nzDefaultExpandAll(): boolean {
+    return this._nzDefaultExpandAll;
+  }
+
+  private _nzDefaultExpandAll = false;
+
   @Input() nzBeforeDrop: (confirm: NzFormatBeforeDropEvent) => Observable<boolean>;
 
   @Input()
@@ -110,29 +124,29 @@ export class NzTreeComponent extends NzTreeBase implements OnInit, OnDestroy, Co
   }
 
   /**
-   * @deprecated use
-   * nzExpandedKeys instead
+   * @deprecated 9.0.0 - use `nzExpandedKeys` instead.
    */
   @Input()
   set nzDefaultExpandedKeys(value: string[]) {
+    warnDeprecation(`'nzDefaultExpandedKeys' would be removed in 9.0.0. Please use 'nzExpandedKeys' instead.`);
     this.nzDefaultSubject.next({ type: 'nzExpandedKeys', keys: value });
   }
 
   /**
-   * @deprecated use
-   * nzSelectedKeys instead
+   * @deprecated 9.0.0 - use `nzSelectedKeys` instead.
    */
   @Input()
   set nzDefaultSelectedKeys(value: string[]) {
+    warnDeprecation(`'nzDefaultSelectedKeys' would be removed in 9.0.0. Please use 'nzSelectedKeys' instead.`);
     this.nzDefaultSubject.next({ type: 'nzSelectedKeys', keys: value });
   }
 
   /**
-   * @deprecated use
-   * nzCheckedKeys instead
+   * @deprecated 9.0.0 - use `nzCheckedKeys` instead.
    */
   @Input()
   set nzDefaultCheckedKeys(value: string[]) {
+    warnDeprecation(`'nzDefaultCheckedKeys' would be removed in 9.0.0. Please use 'nzCheckedKeys' instead.`);
     this.nzDefaultSubject.next({ type: 'nzCheckedKeys', keys: value });
   }
 
@@ -158,6 +172,7 @@ export class NzTreeComponent extends NzTreeBase implements OnInit, OnDestroy, Co
     if (isNotNil(value)) {
       this.nzSearchValueChange.emit(this.nzTreeService.formatEvent('search', null, null));
       this.nzOnSearchNode.emit(this.nzTreeService.formatEvent('search', null, null));
+      warnDeprecation(`'nzOnSearchNode' would be deprecated in 9.0.0. Please use 'nzSearchValueChange' instead.`);
     }
   }
 
@@ -166,36 +181,35 @@ export class NzTreeComponent extends NzTreeBase implements OnInit, OnDestroy, Co
   }
 
   /**
-   * To render nodes if root is changed
+   * To render nodes if root is changed.
    */
   get nzNodes(): NzTreeNode[] {
     return this.nzTreeService.rootNodes;
   }
 
-  // model bind
   @Output() readonly nzExpandedKeysChange: EventEmitter<string[]> = new EventEmitter<string[]>();
   @Output() readonly nzSelectedKeysChange: EventEmitter<string[]> = new EventEmitter<string[]>();
   @Output() readonly nzCheckedKeysChange: EventEmitter<string[]> = new EventEmitter<string[]>();
 
-  @Output() readonly nzSearchValueChange: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
+  @Output() readonly nzSearchValueChange = new EventEmitter<NzFormatEmitEvent>();
+
   /**
-   * @deprecated use
-   * nzSearchValueChange instead
+   * @deprecated use `nzSearchValueChange` instead.
    */
-  @Output() readonly nzOnSearchNode: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-
-  @Output() readonly nzClick: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-  @Output() readonly nzDblClick: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-  @Output() readonly nzContextMenu: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-  @Output() readonly nzCheckBoxChange: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-  @Output() readonly nzExpandChange: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-
-  @Output() readonly nzOnDragStart: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-  @Output() readonly nzOnDragEnter: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-  @Output() readonly nzOnDragOver: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-  @Output() readonly nzOnDragLeave: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-  @Output() readonly nzOnDrop: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
-  @Output() readonly nzOnDragEnd: EventEmitter<NzFormatEmitEvent> = new EventEmitter();
+  @Output() readonly nzOnSearchNode = new EventEmitter<NzFormatEmitEvent>();
+
+  @Output() readonly nzClick = new EventEmitter<NzFormatEmitEvent>();
+  @Output() readonly nzDblClick = new EventEmitter<NzFormatEmitEvent>();
+  @Output() readonly nzContextMenu = new EventEmitter<NzFormatEmitEvent>();
+  @Output() readonly nzCheckBoxChange = new EventEmitter<NzFormatEmitEvent>();
+  @Output() readonly nzExpandChange = new EventEmitter<NzFormatEmitEvent>();
+
+  @Output() readonly nzOnDragStart = new EventEmitter<NzFormatEmitEvent>();
+  @Output() readonly nzOnDragEnter = new EventEmitter<NzFormatEmitEvent>();
+  @Output() readonly nzOnDragOver = new EventEmitter<NzFormatEmitEvent>();
+  @Output() readonly nzOnDragLeave = new EventEmitter<NzFormatEmitEvent>();
+  @Output() readonly nzOnDrop = new EventEmitter<NzFormatEmitEvent>();
+  @Output() readonly nzOnDragEnd = new EventEmitter<NzFormatEmitEvent>();
 
   _searchValue: string;
   _nzMultiple: boolean = false;
diff --git a/components/upload/nz-upload-btn.component.ts b/components/upload/nz-upload-btn.component.ts
index 20cc4f93f8e..857d1dec767 100644
--- a/components/upload/nz-upload-btn.component.ts
+++ b/components/upload/nz-upload-btn.component.ts
@@ -23,7 +23,7 @@ import {
 import { of, Observable, Subscription } from 'rxjs';
 import { switchMap } from 'rxjs/operators';
 
-import { NzUpdateHostClassService } from 'ng-zorro-antd/core';
+import { warn, NzUpdateHostClassService } from 'ng-zorro-antd/core';
 
 import { UploadFile, UploadXHRArgs, ZipButtonOptions } from './interface';
 
@@ -180,7 +180,7 @@ export class NzUploadBtnComponent implements OnInit, OnChanges, OnDestroy {
         });
       },
       e => {
-        console.warn(`Unhandled upload filter error`, e);
+        warn(`Unhandled upload filter error`, e);
       }
     );
   }
@@ -202,7 +202,7 @@ export class NzUploadBtnComponent implements OnInit, OnChanges, OnDestroy {
           }
         },
         e => {
-          console.warn(`Unhandled upload beforeUpload error`, e);
+          warn(`Unhandled upload beforeUpload error`, e);
         }
       );
     } else if (before !== false) {
@@ -246,7 +246,7 @@ export class NzUploadBtnComponent implements OnInit, OnChanges, OnDestroy {
     };
     const req$ = (opt.customRequest || this.xhr).call(this, args);
     if (!(req$ instanceof Subscription)) {
-      console.warn(`Must return Subscription type in '[nzCustomRequest]' property`);
+      warn(`Must return Subscription type in '[nzCustomRequest]' property`);
     }
     this.reqs[uid] = req$;
     opt.onStart!(file);
diff --git a/components/upload/upload.spec.ts b/components/upload/upload.spec.ts
index de56bac9562..4038df69727 100644
--- a/components/upload/upload.spec.ts
+++ b/components/upload/upload.spec.ts
@@ -396,7 +396,7 @@ describe('upload', () => {
           });
           it('should be console.warn error', () => {
             let warnMsg = '';
-            console.warn = jasmine.createSpy().and.callFake((res: string) => (warnMsg = res));
+            console.warn = jasmine.createSpy().and.callFake((...res: string[]) => (warnMsg = res.join(' ')));
             expect(instance._nzChange).toBeUndefined();
             instance.beforeUpload = (): Observable<any> => {
               return throwError('');
@@ -478,7 +478,7 @@ describe('upload', () => {
           });
           it('should be console.warn error', () => {
             let warnMsg = '';
-            console.warn = jasmine.createSpy().and.callFake((res: string) => (warnMsg = res));
+            console.warn = jasmine.createSpy().and.callFake((...res: string[]) => (warnMsg = res.join(' ')));
             instance.nzFilter = [
               {
                 name: 'f1',
@@ -1235,10 +1235,10 @@ describe('upload', () => {
 
       it('should be warn "Must return Subscription type in [nzCustomRequest] property"', () => {
         let warnMsg = '';
-        console.warn = jasmine.createSpy().and.callFake((res: string) => (warnMsg = res));
+        console.warn = jasmine.createSpy().and.callFake((...res: string[]) => (warnMsg = res.join(' ')));
         comp.options.customRequest = (() => {}) as any;
         comp.onChange(PNGSMALL as any);
-        expect(warnMsg).toContain(`Must return Subscription type`);
+        expect(warnMsg).toContain(`Must return Subscription type in '[nzCustomRequest]' property`);
       });
     });
   });