Add changelog entry

CHANGES.txt

@@ -1,3 +1,8 @@
+2.1.0 (January XX, 2025)
+ - Added two new configuration options for the SDK storage in browsers when using storage type `LOCALSTORAGE`:
+    - `storage.expirationDays` to specify the validity period of the rollout cache.
+    - `storage.clearOnInit` to clear the rollout cache on SDK initialization.
+
 2.0.2 (December 3, 2024)
  - Updated the factory `init` and `destroy` methods to support re-initialization after destruction. This update ensures compatibility of the React SDK with React Strict Mode, where the factory's `init` and `destroy` effects are executed an extra time to validate proper resource cleanup.
  - Bugfixing - Sanitize the `SplitSDKMachineName` header value to avoid exceptions on HTTP/S requests when it contains non ISO-8859-1 characters (Related to issue https://github.com/splitio/javascript-client/issues/847).

src/storages/inLocalStorage/validateCache.ts

@@ -7,7 +7,6 @@ import type { MySegmentsCacheInLocal } from './MySegmentsCacheInLocal';
 import { KeyBuilderCS } from '../KeyBuilderCS';
 import SplitIO from '../../../types/splitio';
 
-// milliseconds in a day
 const DEFAULT_CACHE_EXPIRATION_IN_DAYS = 10;
 const MILLIS_IN_A_DAY = 86400000;