Update Immer dep to 10.2 and disable strict iteration for perf (#5127)

* Update Immer dep to 10.2

* Specifically disable Immer strict iteration for perf

Author: markerikson

packages/toolkit/package.json

@@ -261,7 +261,7 @@
   "dependencies": {
     "@standard-schema/spec": "^1.0.0",
     "@standard-schema/utils": "^0.3.0",
-    "immer": "^10.0.3",
+    "immer": "^10.2.0",
     "redux": "^5.0.1",
     "redux-thunk": "^3.1.0",
     "reselect": "^5.1.0"

packages/toolkit/src/createReducer.ts

@@ -1,11 +1,23 @@
 import type { Draft } from 'immer'
-import { produce as createNextState, isDraft, isDraftable } from 'immer'
+import {
+  produce as createNextState,
+  isDraft,
+  isDraftable,
+  setUseStrictIteration,
+} from 'immer'
 import type { Action, Reducer, UnknownAction } from 'redux'
 import type { ActionReducerMapBuilder } from './mapBuilders'
 import { executeReducerBuilderCallback } from './mapBuilders'
 import type { NoInfer, TypeGuard } from './tsHelpers'
 import { freezeDraftable } from './utils'
 
+// Immer 10.2 defaults to still using strict iteration (specifically
+// `Reflect.ownKeys()` for symbols support). However, we assume that
+// Redux users are not using symbols as state keys, so we'll override
+// this to prefer `Object.keys()` instead, as it provides a ~10% speedup.
+// If users do need symbol support, they can call `setUseStrictIteration(true)` themselves.
+setUseStrictIteration(false)
+
 /**
  * Defines a mapping from action types to corresponding action object shapes.
  *

yarn.lock

@@ -7695,7 +7695,7 @@ __metadata:
     eslint-plugin-react: "npm:^7.23.2"
     eslint-plugin-react-hooks: "npm:^4.2.0"
     fs-extra: "npm:^9.1.0"
-    immer: "npm:^10.0.3"
+    immer: "npm:^10.2.0"
     invariant: "npm:^2.2.4"
     jsdom: "npm:^25.0.1"
     json-stringify-safe: "npm:^5.0.1"
@@ -18728,6 +18728,13 @@ __metadata:
   languageName: node
   linkType: hard
 
+"immer@npm:^10.2.0":
+  version: 10.2.0
+  resolution: "immer@npm:10.2.0"
+  checksum: 10/d73e218c8f8ffbb39f9290dfafa478b94af73403dcf26b5672eef35233bb30f09ffe231f8a78a6c9cb442968510edd89e851776ec90a5ddfa82cee6db6b35137
+  languageName: node
+  linkType: hard
+
 "immer@npm:^9.0.21, immer@npm:^9.0.7":
   version: 9.0.21
   resolution: "immer@npm:9.0.21"