diff --git a/npm/ng-packs/packages/core/src/lib/handlers/oauth-configuration.handler.ts b/npm/ng-packs/packages/core/src/lib/handlers/oauth-configuration.handler.ts
index 79c3d00a4d..f82e382fe7 100644
--- a/npm/ng-packs/packages/core/src/lib/handlers/oauth-configuration.handler.ts
+++ b/npm/ng-packs/packages/core/src/lib/handlers/oauth-configuration.handler.ts
@@ -20,7 +20,7 @@ export class OAuthConfigurationHandler {
 
   private listenToSetEnvironment() {
     this.environmentService
-      .onUpdate$(state => state)
+      .createOnUpdateStream(state => state)
       .pipe(
         map(environment => environment.oAuthConfig),
         filter(config => !compare(config, this.options.environment.oAuthConfig)),
diff --git a/npm/ng-packs/packages/core/src/lib/services/auth.service.ts b/npm/ng-packs/packages/core/src/lib/services/auth.service.ts
index 817bd57f94..1c1bd31119 100644
--- a/npm/ng-packs/packages/core/src/lib/services/auth.service.ts
+++ b/npm/ng-packs/packages/core/src/lib/services/auth.service.ts
@@ -51,7 +51,7 @@ export class AuthService {
   };
 
   private listenToSetEnvironment() {
-    this.environment.onUpdate$(state => state.oAuthConfig).subscribe(this.setStrategy);
+    this.environment.createOnUpdateStream(state => state.oAuthConfig).subscribe(this.setStrategy);
   }
 
   login(username: string, password: string): Observable<any> {
diff --git a/npm/ng-packs/packages/core/src/lib/services/config-state.service.ts b/npm/ng-packs/packages/core/src/lib/services/config-state.service.ts
index abc1bdb115..ed544fec2b 100644
--- a/npm/ng-packs/packages/core/src/lib/services/config-state.service.ts
+++ b/npm/ng-packs/packages/core/src/lib/services/config-state.service.ts
@@ -10,7 +10,9 @@ import { InternalStore } from '../utils/internal-store-utils';
 export class ConfigStateService {
   private readonly store = new InternalStore({} as ApplicationConfiguration.Response);
 
-  readonly onUpdate$ = this.store.sliceUpdate;
+  get createOnUpdateStream() {
+    return this.store.sliceUpdate;
+  }
 
   setState = (state: ApplicationConfiguration.Response) => {
     this.store.patch(state);
diff --git a/npm/ng-packs/packages/core/src/lib/services/environment.service.ts b/npm/ng-packs/packages/core/src/lib/services/environment.service.ts
index 3f6c715406..5cf975ae5f 100644
--- a/npm/ng-packs/packages/core/src/lib/services/environment.service.ts
+++ b/npm/ng-packs/packages/core/src/lib/services/environment.service.ts
@@ -8,7 +8,7 @@ import { InternalStore } from '../utils/internal-store-utils';
 export class EnvironmentService {
   private readonly store = new InternalStore({} as Environment);
 
-  get onUpdate$() {
+  get createOnUpdateStream() {
     return this.store.sliceUpdate;
   }
 
diff --git a/npm/ng-packs/packages/core/src/lib/services/localization.service.ts b/npm/ng-packs/packages/core/src/lib/services/localization.service.ts
index 60cd956044..b49056f0b5 100644
--- a/npm/ng-packs/packages/core/src/lib/services/localization.service.ts
+++ b/npm/ng-packs/packages/core/src/lib/services/localization.service.ts
@@ -193,7 +193,6 @@ function getLocalization(
     return defaultValue || sourceKey;
   }
 
-  // [TODO]: next line should be removed in v3.2, breaking change!!!
   interpolateParams = interpolateParams.filter(params => params != null);
   if (localization) localization = interpolate(localization, interpolateParams);
 
diff --git a/npm/ng-packs/packages/core/src/lib/services/routes.service.ts b/npm/ng-packs/packages/core/src/lib/services/routes.service.ts
index 0d589ff440..3d572b457c 100644
--- a/npm/ng-packs/packages/core/src/lib/services/routes.service.ts
+++ b/npm/ng-packs/packages/core/src/lib/services/routes.service.ts
@@ -153,7 +153,9 @@ export abstract class AbstractNavTreeService<T extends ABP.Nav>
   constructor(protected injector: Injector) {
     super();
     const configState = this.injector.get(ConfigStateService);
-    this.subscription = configState.onUpdate$(state => state).subscribe(() => this.refresh());
+    this.subscription = configState
+      .createOnUpdateStream(state => state)
+      .subscribe(() => this.refresh());
     this.permissionService = injector.get(PermissionService);
   }
 
diff --git a/npm/ng-packs/packages/core/src/lib/services/session-state.service.ts b/npm/ng-packs/packages/core/src/lib/services/session-state.service.ts
index 1af9a890ad..4f7194024e 100644
--- a/npm/ng-packs/packages/core/src/lib/services/session-state.service.ts
+++ b/npm/ng-packs/packages/core/src/lib/services/session-state.service.ts
@@ -1,10 +1,10 @@
 import { Injectable } from '@angular/core';
+import compare from 'just-compare';
+import { filter, take } from 'rxjs/operators';
 import { ApplicationConfiguration } from '../models/application-configuration';
 import { Session } from '../models/session';
 import { InternalStore } from '../utils/internal-store-utils';
-import compare from 'just-compare';
 import { ConfigStateService } from './config-state.service';
-import { filter, take, tap } from 'rxjs/operators';
 
 export interface SessionDetail {
   openedTabCount: number;
@@ -42,7 +42,6 @@ export class SessionStateService {
     this.configState
       .getDeep$('localization.currentCulture.cultureName')
       .pipe(
-        tap(console.warn),
         filter(cultureName => !!cultureName),
         take(1),
       )