diff --git a/CHANGES.txt b/CHANGES.txt
index 2f353229..9dd13056 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,6 @@
+3.1.0 (July XX, 2026)
+ - Added support for rule-based segments in /api/v1/configs endpoint.
+
 3.0.0 (June 26, 2026)
  - Extracted SDK lifecycle methods (`init`, `flush`, and `destroy`) into a reusable `sdkLifecycle` module.
  - Extracted the `track` method into a standalone `trackMethod` factory for reuse across SDKs.
diff --git a/package-lock.json b/package-lock.json
index 0c2b5034..42dec283 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@splitsoftware/splitio-commons",
-  "version": "3.0.0",
+  "version": "3.0.1-rc.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@splitsoftware/splitio-commons",
-      "version": "3.0.0",
+      "version": "3.0.1-rc.2",
       "license": "Apache-2.0",
       "dependencies": {
         "@types/ioredis": "^4.28.0",
diff --git a/package.json b/package.json
index 9c031dfe..2d5c30ab 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@splitsoftware/splitio-commons",
-  "version": "3.0.0",
+  "version": "3.0.1-rc.2",
   "description": "Split JavaScript SDK common components",
   "main": "cjs/index.js",
   "module": "esm/index.js",
diff --git a/src/sdkClient/sdkLifecycle.ts b/src/sdkClient/sdkLifecycle.ts
index fa0cb602..6e4d1b95 100644
--- a/src/sdkClient/sdkLifecycle.ts
+++ b/src/sdkClient/sdkLifecycle.ts
@@ -1,5 +1,6 @@
 import { releaseApiKey, validateAndTrackApiKey } from '../utils/inputValidation/apiKey';
 import { ISdkFactoryContext } from '../sdkFactory/types';
+import { LOCALHOST_MODE } from '../utils/constants';
 
 const COOLDOWN_TIME_IN_MILLIS = 1000;
 
@@ -12,7 +13,7 @@ export function sdkLifecycleFactory(params: ISdkFactoryContext, isSharedClient?:
   let hasInit = false;
   let lastActionTime = 0;
 
-  const signalListener = platform.SignalListener && new platform.SignalListener(params);
+  const signalListener = platform.SignalListener && settings.mode !== LOCALHOST_MODE ? new platform.SignalListener(params) : undefined;
 
   function __cooldown(func: Function, time: number) {
     const now = Date.now();
diff --git a/src/sdkFactory/types.ts b/src/sdkFactory/types.ts
index 1dd5c7f7..14bffc56 100644
--- a/src/sdkFactory/types.ts
+++ b/src/sdkFactory/types.ts
@@ -105,11 +105,7 @@ export interface ISdkFactoryParams {
 
   // Sdk client method factory.
   // It Allows to distinguish SDK clients with the client-side API (`IBrowserSDK` and `IBrowserAsyncSDK`) or server-side API (`ISDK` and `IAsyncSDK`).
-  sdkClientMethodFactory: (params: ISdkFactoryContext) => (
-    { (): SplitIO.IBrowserClient & { init(): void }; (key: SplitIO.SplitKey): SplitIO.IBrowserClient & { init(): void }; } |
-    (() => SplitIO.IClient & { init(): void }) |
-    (() => SplitIO.IAsyncClient & { init(): void })
-  )
+  sdkClientMethodFactory: (params: ISdkFactoryContext) => ({ (): SplitIO.IBrowserClient; (key: SplitIO.SplitKey): SplitIO.IBrowserClient; } | (() => SplitIO.IClient) | (() => SplitIO.IAsyncClient))
 
   // Impression observer factory.
   impressionsObserverFactory: () => IImpressionObserver
diff --git a/src/services/__tests__/splitApi.spec.ts b/src/services/__tests__/splitApi.spec.ts
index a5aacd45..a77c1708 100644
--- a/src/services/__tests__/splitApi.spec.ts
+++ b/src/services/__tests__/splitApi.spec.ts
@@ -45,10 +45,10 @@ describe('serviceApi', () => {
     assertHeaders(settings, headers);
     expect(url).toBe(expectedFlagsUrl(-1, 100, settings.validateFilters || false, settings, -1));
 
-    serviceApi.fetchConfigs(-1, false, 100);
+    serviceApi.fetchConfigs(-1, false, 100, -1);
     [url, { headers }] = fetchMock.mock.calls[4];
     assertHeaders(settings, headers);
-    expect(url).toBe(expectedConfigsUrl(-1, 100, settings.validateFilters || false, settings));
+    expect(url).toBe(expectedConfigsUrl(-1, 100, settings.validateFilters || false, settings, -1));
 
     serviceApi.fetchConfigsSegmentChanges(-1, 'segmentName', false, 100);
     [url, { headers }] = fetchMock.mock.calls[5];
@@ -81,9 +81,9 @@ describe('serviceApi', () => {
       return `sdk/splitChanges?s=1.1&since=${since}${rbSince ? '&rbSince=' + rbSince : ''}${usesFilter ? filterQueryString : ''}${till ? '&till=' + till : ''}`;
     }
 
-    function expectedConfigsUrl(since: number, till: number, usesFilter: boolean, settings: ISettings) {
+    function expectedConfigsUrl(since: number, till: number, usesFilter: boolean, settings: ISettings, rbSince?: number) {
       const filterQueryString = settings.sync.__splitFiltersValidation && settings.sync.__splitFiltersValidation.queryString;
-      return `configs/v1/configs?since=${since}${usesFilter ? filterQueryString : ''}${till ? '&till=' + till : ''}`;
+      return `configs/v1/configs?since=${since}${rbSince ? '&rbSince=' + rbSince : ''}${usesFilter ? filterQueryString : ''}${till ? '&till=' + till : ''}`;
     }
   });
 
diff --git a/src/services/serviceApi.ts b/src/services/serviceApi.ts
index 518fbaab..207b3b08 100644
--- a/src/services/serviceApi.ts
+++ b/src/services/serviceApi.ts
@@ -70,8 +70,8 @@ export function serviceApiFactory(
     },
 
     // @TODO support filterQueryString and handle ERROR_TOO_MANY_SETS error
-    fetchConfigs(since: number, noCache?: boolean, till?: number) {
-      const url = `${urls.configs}/api/v1/configs?since=${since}${filterQueryString || ''}${till ? '&till=' + till : ''}`;
+    fetchConfigs(since: number, noCache?: boolean, till?: number, rbSince?: number) {
+      const url = `${urls.configs}/api/v1/configs?since=${since}${rbSince ? '&rbSince=' + rbSince : ''}${filterQueryString || ''}${till ? '&till=' + till : ''}`;
       return secureSplitHttpClient(url, noCache ? noCacheHeaderOptions : undefined);
     },
 
diff --git a/src/services/splitApi.ts b/src/services/splitApi.ts
index 935ed8d8..ba7ff38c 100644
--- a/src/services/splitApi.ts
+++ b/src/services/splitApi.ts
@@ -149,8 +149,8 @@ export function splitApiFactory(
 
     // Not used. Just here to satisfy the IServiceApi interface.
 
-    fetchConfigs(since: number, noCache?: boolean, till?: number) {
-      const url = `${urls.configs}/v1/configs?since=${since}${filterQueryString || ''}${till ? '&till=' + till : ''}`;
+    fetchConfigs(since: number, noCache?: boolean, till?: number, rbSince?: number) {
+      const url = `${urls.configs}/v1/configs?since=${since}${rbSince ? '&rbSince=' + rbSince : ''}${filterQueryString || ''}${till ? '&till=' + till : ''}`;
       return splitHttpClient(url, noCache ? noCacheHeaderOptions : undefined);
     },
 
diff --git a/src/storages/inLocalStorage/MySegmentsCacheInLocal.ts b/src/storages/inLocalStorage/MySegmentsCacheInLocal.ts
index 0a1cc258..94ad2e55 100644
--- a/src/storages/inLocalStorage/MySegmentsCacheInLocal.ts
+++ b/src/storages/inLocalStorage/MySegmentsCacheInLocal.ts
@@ -8,12 +8,10 @@ import { StorageAdapter } from '../types';
 export class MySegmentsCacheInLocal extends AbstractMySegmentsCacheSync {
 
   private readonly keys: MySegmentsKeyBuilder;
-  private readonly log: ILogger;
   private readonly storage: StorageAdapter;
 
-  constructor(log: ILogger, keys: MySegmentsKeyBuilder, storage: StorageAdapter) {
+  constructor(_log: ILogger, keys: MySegmentsKeyBuilder, storage: StorageAdapter) {
     super();
-    this.log = log;
     this.keys = keys;
     this.storage = storage;
   }
diff --git a/src/utils/EventEmitter.d.ts b/src/utils/EventEmitter.d.ts
new file mode 100644
index 00000000..754737bd
--- /dev/null
+++ b/src/utils/EventEmitter.d.ts
@@ -0,0 +1,3 @@
+import SplitIO from '../../types/splitio';
+
+export declare const EventEmitter: new () => SplitIO.IEventEmitter;