Breaking changes

.eslintrc

@@ -80,7 +80,7 @@
             "message": "Don't declare const enum, because it is not supported by Babel used for building RN SDK"
           }
         ],
-        "compat/compat": ["error", "defaults, ie 10, node 6"],
+        "compat/compat": ["error", "defaults, node >=14"],
         "no-throw-literal": "error",
         "import/no-default-export": "error",
         "import/no-self-import": "error"

CHANGES.txt

@@ -7,6 +7,10 @@
    - Updated default flag spec version to 1.2.
    - Removed `/mySegments` endpoint from SplitAPI module, as it is replaced by `/memberships` endpoint.
    - Removed support for MY_SEGMENTS_UPDATE and MY_SEGMENTS_UPDATE_V2 notification types, as they are replaced by MEMBERSHIPS_MS_UPDATE and MEMBERSHIPS_LS_UPDATE notification types.
+   - Removed the deprecated `GOOGLE_ANALYTICS_TO_SPLIT` and `SPLIT_TO_GOOGLE_ANALYTICS` integrations.
+   - Removed the migration logic for the old format of MySegments keys in LocalStorage introduced in JavaScript SDK v10.17.3.
+   - Removed the `sdkClientMethodCSWithTT` function, which handled the logic to bound an optional traffic type to SDK clients. Client-side SDK implementations must use `sdkClientMethodCS` module, which, unlike the previous function, does not allow passing a traffic type but simplifies the SDK API.
+   - Removed internal ponyfills for `Map` and `Set` global objects, dropping support for IE and other outdated browsers. The SDK now requires the runtime environment to support these features natively or to provide a polyfill.
 
 1.17.0 (September 6, 2024)
  - Added `sync.requestOptions.getHeaderOverrides` configuration option to enhance SDK HTTP request Headers for Authorization Frameworks.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@splitsoftware/splitio-commons",
-  "version": "1.17.1-rc.4",
+  "version": "2.0.0-rc.1",
   "description": "Split JavaScript SDK common components",
   "main": "cjs/index.js",
   "module": "esm/index.js",
@@ -64,7 +64,7 @@
     "@typescript-eslint/parser": "^6.6.0",
     "cross-env": "^7.0.2",
     "eslint": "^8.48.0",
-    "eslint-plugin-compat": "^4.2.0",
+    "eslint-plugin-compat": "^6.0.1",
     "eslint-plugin-import": "^2.25.3",
     "fetch-mock": "^9.11.0",
     "ioredis": "^4.28.0",

src/evaluator/Engine.ts

@@ -21,7 +21,7 @@ export class Engine {
 
   constructor(private baseInfo: ISplit, private evaluator: IEvaluator) {
 
-    // in case we don't have a default treatment in the instanciation, use 'control'
+    // in case we don't have a default treatment in the instantiation, use 'control'
     if (typeof this.baseInfo.defaultTreatment !== 'string') {
       this.baseInfo.defaultTreatment = CONTROL;
     }

src/evaluator/__tests__/evaluate-features.spec.ts

@@ -2,7 +2,6 @@
 import { evaluateFeatures, evaluateFeaturesByFlagSets } from '../index';
 import { EXCEPTION, NOT_IN_SPLIT, SPLIT_ARCHIVED, SPLIT_KILLED, SPLIT_NOT_FOUND } from '../../utils/labels';
 import { loggerMock } from '../../logger/__tests__/sdkLogger.mock';
-import { _Set } from '../../utils/lang/sets';
 import { WARN_FLAGSET_WITHOUT_FLAGS } from '../../logger/constants';
 
 const splitsMock = {
@@ -17,8 +16,8 @@ const splitsMock = {
 };
 
 const flagSetsMock = {
-  reg_and_config: new _Set(['regular', 'config']),
-  arch_and_killed: new _Set(['killed', 'archived']),
+  reg_and_config: new Set(['regular', 'config']),
+  arch_and_killed: new Set(['killed', 'archived']),
 };
 
 const mockStorage = {
@@ -38,7 +37,7 @@ const mockStorage = {
       return splits;
     },
     getNamesByFlagSets(flagSets) {
-      return flagSets.map(flagset => flagSetsMock[flagset] || new _Set());
+      return flagSets.map(flagset => flagSetsMock[flagset] || new Set());
     }
   }
 };
@@ -192,7 +191,7 @@ describe('EVALUATOR - Multiple evaluations at once by flag sets', () => {
     // Should support async storage too
     expect(await getResultsByFlagsets(['inexistent_set1', 'inexistent_set2'], {
       splits: {
-        getNamesByFlagSets(flagSets) { return Promise.resolve(flagSets.map(flagset => flagSetsMock[flagset] || new _Set())); }
+        getNamesByFlagSets(flagSets) { return Promise.resolve(flagSets.map(flagset => flagSetsMock[flagset] || new Set())); }
       }
     })).toEqual({});
     expect(loggerMock.warn.mock.calls).toEqual([

src/evaluator/index.ts

@@ -7,7 +7,7 @@ import { IStorageAsync, IStorageSync } from '../storages/types';
 import { IEvaluationResult } from './types';
 import { SplitIO } from '../types';
 import { ILogger } from '../logger/types';
-import { ISet, setToArray, returnSetsUnion, _Set } from '../utils/lang/sets';
+import { returnSetsUnion, setToArray } from '../utils/lang/sets';
 import { WARN_FLAGSET_WITHOUT_FLAGS } from '../logger/constants';
 
 const treatmentException = {
@@ -97,12 +97,12 @@ export function evaluateFeaturesByFlagSets(
   storage: IStorageSync | IStorageAsync,
   method: string,
 ): MaybeThenable<Record<string, IEvaluationResult>> {
-  let storedFlagNames: MaybeThenable<ISet<string>[]>;
+  let storedFlagNames: MaybeThenable<Set<string>[]>;
 
   function evaluate(
-    featureFlagsByFlagSets: ISet<string>[],
+    featureFlagsByFlagSets: Set<string>[],
   ) {
-    let featureFlags = new _Set();
+    let featureFlags = new Set<string>();
     for (let i = 0; i < flagSets.length; i++) {
       const featureFlagByFlagSet = featureFlagsByFlagSets[i];
       if (featureFlagByFlagSet.size) {

src/evaluator/matchers/semver_inlist.ts

@@ -1,11 +1,10 @@
-import { _Set } from '../../utils/lang/sets';
 import { Semver } from '../../utils/Semver';
 
 export function inListSemverMatcherContext(ruleAttr: string[]) {
   // @TODO ruleAttr validation should be done at the `parser` or `matchersTransform` level to reuse for all matchers
   if (!ruleAttr || ruleAttr.length === 0) throw new Error('whitelistMatcherData is required for IN_LIST_SEMVER matcher type');
 
-  const listOfSemvers = new _Set(ruleAttr.map((version) => new Semver(version).version));
+  const listOfSemvers = new Set(ruleAttr.map((version) => new Semver(version).version));
 
   return function inListSemverMatcher(runtimeAttr: string): boolean {
     const runtimeSemver = new Semver(runtimeAttr).version;

src/evaluator/matchers/whitelist.ts

@@ -1,7 +1,5 @@
-import { _Set } from '../../utils/lang/sets';
-
 export function whitelistMatcherContext(ruleAttr: string[]) {
-  const whitelistSet = new _Set(ruleAttr);
+  const whitelistSet = new Set(ruleAttr);
 
   return function whitelistMatcher(runtimeAttr: string): boolean {
     const isInWhitelist = whitelistSet.has(runtimeAttr);