diff --git a/packages/@react-aria/test-utils/package.json b/packages/@react-aria/test-utils/package.json
index 2b79e0b7bfe..d79d87e6483 100644
--- a/packages/@react-aria/test-utils/package.json
+++ b/packages/@react-aria/test-utils/package.json
@@ -26,7 +26,6 @@
     "@swc/helpers": "^0.5.0"
   },
   "peerDependencies": {
-    "@testing-library/dom": "^10.1.0",
     "@testing-library/react": "^16.0.0",
     "@testing-library/user-event": "^14.0.0",
     "react": "^16.8.0 || ^17.0.0-rc.1 || ^18.0.0 || ^19.0.0-rc.1",
diff --git a/packages/@react-aria/test-utils/src/act.ts b/packages/@react-aria/test-utils/src/act.ts
deleted file mode 100644
index e4f35719b89..00000000000
--- a/packages/@react-aria/test-utils/src/act.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright 2025 Adobe. All rights reserved.
- * This file is licensed to you under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License. You may obtain a copy
- * of the License at http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software distributed under
- * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
- * OF ANY KIND, either express or implied. See the License for the specific language
- * governing permissions and limitations under the License.
- */
-
-import * as React from 'react';
-import * as ReactDOMTestUtils from 'react-dom/test-utils';
-
-let actImpl: typeof ReactDOMTestUtils.act;
-if (typeof React.act === 'function') {
-  actImpl = React.act;
-} else {
-  actImpl = ReactDOMTestUtils.act;
-}
-
-export const act = actImpl;
diff --git a/packages/@react-aria/test-utils/src/checkboxgroup.ts b/packages/@react-aria/test-utils/src/checkboxgroup.ts
index 6843d4ff9a0..54e436a5cab 100644
--- a/packages/@react-aria/test-utils/src/checkboxgroup.ts
+++ b/packages/@react-aria/test-utils/src/checkboxgroup.ts
@@ -10,10 +10,9 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, within} from '@testing-library/react';
 import {CheckboxGroupTesterOpts, UserOpts} from './types';
 import {pressElement} from './events';
-import {within} from '@testing-library/dom';
 
 interface TriggerCheckboxOptions {
   /**
diff --git a/packages/@react-aria/test-utils/src/combobox.ts b/packages/@react-aria/test-utils/src/combobox.ts
index 5d458fcd933..d95ac6f5711 100644
--- a/packages/@react-aria/test-utils/src/combobox.ts
+++ b/packages/@react-aria/test-utils/src/combobox.ts
@@ -10,9 +10,8 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, waitFor, within} from '@testing-library/react';
 import {ComboBoxTesterOpts, UserOpts} from './types';
-import {waitFor, within} from '@testing-library/dom';
 
 interface ComboBoxOpenOpts {
   /**
diff --git a/packages/@react-aria/test-utils/src/dialog.ts b/packages/@react-aria/test-utils/src/dialog.ts
index 0c0dd85605c..213c86c2b1a 100644
--- a/packages/@react-aria/test-utils/src/dialog.ts
+++ b/packages/@react-aria/test-utils/src/dialog.ts
@@ -10,9 +10,8 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, waitFor, within} from '@testing-library/react';
 import {DialogTesterOpts, UserOpts} from './types';
-import {waitFor, within} from '@testing-library/dom';
 
 interface DialogOpenOpts {
   /**
diff --git a/packages/@react-aria/test-utils/src/events.ts b/packages/@react-aria/test-utils/src/events.ts
index 28364b4d464..e603111d3ea 100644
--- a/packages/@react-aria/test-utils/src/events.ts
+++ b/packages/@react-aria/test-utils/src/events.ts
@@ -10,8 +10,7 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
-import {fireEvent} from '@testing-library/dom';
+import {act, fireEvent} from '@testing-library/react';
 import {UserOpts} from './types';
 
 export const DEFAULT_LONG_PRESS_TIME = 500;
diff --git a/packages/@react-aria/test-utils/src/gridlist.ts b/packages/@react-aria/test-utils/src/gridlist.ts
index 55012e3f1a1..d5d1c21e082 100644
--- a/packages/@react-aria/test-utils/src/gridlist.ts
+++ b/packages/@react-aria/test-utils/src/gridlist.ts
@@ -10,10 +10,9 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, within} from '@testing-library/react';
 import {getAltKey, getMetaKey, pressElement, triggerLongPress} from './events';
 import {GridListTesterOpts, GridRowActionOpts, ToggleGridRowOpts, UserOpts} from './types';
-import {within} from '@testing-library/dom';
 
 interface GridListToggleRowOpts extends ToggleGridRowOpts {}
 interface GridListRowActionOpts extends GridRowActionOpts {}
diff --git a/packages/@react-aria/test-utils/src/listbox.ts b/packages/@react-aria/test-utils/src/listbox.ts
index fa3649c27e8..cac8d9d78bc 100644
--- a/packages/@react-aria/test-utils/src/listbox.ts
+++ b/packages/@react-aria/test-utils/src/listbox.ts
@@ -10,10 +10,9 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, within} from '@testing-library/react';
 import {getAltKey, getMetaKey, pressElement, triggerLongPress} from './events';
 import {ListBoxTesterOpts, UserOpts} from './types';
-import {within} from '@testing-library/dom';
 
 interface ListBoxToggleOptionOpts {
   /**
diff --git a/packages/@react-aria/test-utils/src/menu.ts b/packages/@react-aria/test-utils/src/menu.ts
index 1badcd3f539..87af5c11fd0 100644
--- a/packages/@react-aria/test-utils/src/menu.ts
+++ b/packages/@react-aria/test-utils/src/menu.ts
@@ -10,10 +10,9 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, waitFor, within} from '@testing-library/react';
 import {MenuTesterOpts, UserOpts} from './types';
 import {triggerLongPress} from './events';
-import {waitFor, within} from '@testing-library/dom';
 
 interface MenuOpenOpts {
   /**
diff --git a/packages/@react-aria/test-utils/src/radiogroup.ts b/packages/@react-aria/test-utils/src/radiogroup.ts
index fc94e187c8f..6c1d0e38c9e 100644
--- a/packages/@react-aria/test-utils/src/radiogroup.ts
+++ b/packages/@react-aria/test-utils/src/radiogroup.ts
@@ -10,10 +10,9 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, within} from '@testing-library/react';
 import {Direction, Orientation, RadioGroupTesterOpts, UserOpts} from './types';
 import {pressElement} from './events';
-import {within} from '@testing-library/dom';
 
 interface TriggerRadioOptions {
   /**
diff --git a/packages/@react-aria/test-utils/src/select.ts b/packages/@react-aria/test-utils/src/select.ts
index 66da8c85262..8399363b2bb 100644
--- a/packages/@react-aria/test-utils/src/select.ts
+++ b/packages/@react-aria/test-utils/src/select.ts
@@ -10,9 +10,8 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, waitFor, within} from '@testing-library/react';
 import {SelectTesterOpts, UserOpts} from './types';
-import {waitFor, within} from '@testing-library/dom';
 
 interface SelectOpenOpts {
   /**
diff --git a/packages/@react-aria/test-utils/src/table.ts b/packages/@react-aria/test-utils/src/table.ts
index 661fdd4a5dc..2401beeed1b 100644
--- a/packages/@react-aria/test-utils/src/table.ts
+++ b/packages/@react-aria/test-utils/src/table.ts
@@ -10,10 +10,9 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, waitFor, within} from '@testing-library/react';
 import {BaseGridRowInteractionOpts, GridRowActionOpts, TableTesterOpts, ToggleGridRowOpts, UserOpts} from './types';
 import {getAltKey, getMetaKey, pressElement, triggerLongPress} from './events';
-import {waitFor, within} from '@testing-library/dom';
 
 interface TableToggleRowOpts extends ToggleGridRowOpts {}
 interface TableToggleExpansionOpts extends BaseGridRowInteractionOpts {}
diff --git a/packages/@react-aria/test-utils/src/tabs.ts b/packages/@react-aria/test-utils/src/tabs.ts
index 9647b8c8937..c26da3e7656 100644
--- a/packages/@react-aria/test-utils/src/tabs.ts
+++ b/packages/@react-aria/test-utils/src/tabs.ts
@@ -10,10 +10,9 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, within} from '@testing-library/react';
 import {Direction, Orientation, TabsTesterOpts, UserOpts} from './types';
 import {pressElement} from './events';
-import {within} from '@testing-library/dom';
 
 interface TriggerTabOptions {
   /**
diff --git a/packages/@react-aria/test-utils/src/tree.ts b/packages/@react-aria/test-utils/src/tree.ts
index 6270ca5d572..cadcf52b72a 100644
--- a/packages/@react-aria/test-utils/src/tree.ts
+++ b/packages/@react-aria/test-utils/src/tree.ts
@@ -10,10 +10,9 @@
  * governing permissions and limitations under the License.
  */
 
-import {act} from './act';
+import {act, within} from '@testing-library/react';
 import {BaseGridRowInteractionOpts, GridRowActionOpts, ToggleGridRowOpts, TreeTesterOpts, UserOpts} from './types';
 import {getAltKey, getMetaKey, pressElement, triggerLongPress} from './events';
-import {within} from '@testing-library/dom';
 
 interface TreeToggleExpansionOpts extends BaseGridRowInteractionOpts {}
 interface TreeToggleRowOpts extends ToggleGridRowOpts {}
diff --git a/packages/@react-spectrum/s2/src/DatePicker.tsx b/packages/@react-spectrum/s2/src/DatePicker.tsx
index 53fc414a646..fdb752460e2 100644
--- a/packages/@react-spectrum/s2/src/DatePicker.tsx
+++ b/packages/@react-spectrum/s2/src/DatePicker.tsx
@@ -52,11 +52,7 @@ export interface DatePickerProps<T extends DateValue> extends
      * The maximum number of months to display at once in the calendar popover, if screen space permits.
      * @default 1
      */
-    maxVisibleMonths?: number,
-    /**
-     * The error message to display when the calendar is invalid.
-     */
-    errorMessage?: ReactNode
+    maxVisibleMonths?: number
 }
 
 export const DatePickerContext = createContext<ContextValue<Partial<DatePickerProps<any>>, HTMLDivElement>>(null);
@@ -167,6 +163,10 @@ export const DatePicker = /*#__PURE__*/ (forwardRef as forwardRefType)(function
         let timeMaxValue = props.maxValue && 'hour' in props.maxValue ? props.maxValue : undefined;
         let timeGranularity = state.granularity === 'hour' || state.granularity === 'minute' || state.granularity === 'second' ? state.granularity : undefined;
         let showTimeField = !!timeGranularity;
+
+        // Ideally, we could omit errorMessage here and let S2 Calendar read it from RAC's CalendarContext which already contains the resolved value via calendarProps from useDatePicker.
+        // However, RAC's CalendarProps omits errorMessage, so reading it back from the context would require an unsafe cast. Instead, we resolve it here using the same logic as useDatePicker.
+        let resolvedErrorMessage = typeof errorMessage === 'function' ? errorMessage(state.displayValidation) : (errorMessage || state.displayValidation.validationErrors.join(' '));
         return (
           <>
             <FieldLabel
@@ -208,7 +208,7 @@ export const DatePicker = /*#__PURE__*/ (forwardRef as forwardRefType)(function
               <Calendar
                 visibleMonths={maxVisibleMonths}
                 createCalendar={createCalendar}
-                errorMessage={errorMessage} />
+                errorMessage={resolvedErrorMessage} />
               {showTimeField && (
                 <div className={style({display: 'flex', gap: 16, contain: 'inline-size'})}>
                   <TimeField
@@ -231,7 +231,7 @@ export const DatePicker = /*#__PURE__*/ (forwardRef as forwardRefType)(function
               isDisabled={isDisabled}
               isInvalid={isInvalid}
               description={descriptionMessage}>
-              {errorMessage}
+              {resolvedErrorMessage}
             </HelpText>
           </>
         );
diff --git a/packages/@react-spectrum/s2/src/DateRangePicker.tsx b/packages/@react-spectrum/s2/src/DateRangePicker.tsx
index 8124f178eb4..a35a16354e5 100644
--- a/packages/@react-spectrum/s2/src/DateRangePicker.tsx
+++ b/packages/@react-spectrum/s2/src/DateRangePicker.tsx
@@ -17,7 +17,7 @@ import {
 } from 'react-aria-components/DateRangePicker';
 import {CalendarButton, CalendarPopover, timeField} from './DatePicker';
 import {ContextValue} from 'react-aria-components/slots';
-import {createContext, forwardRef, ReactElement, ReactNode, Ref, useContext, useState} from 'react';
+import {createContext, forwardRef, ReactElement, Ref, useContext, useState} from 'react';
 import {DateInput, DateInputContainer, InvalidIndicator} from './DateField';
 import {field, fieldInput, getAllowedOverrides, StyleProps} from './style-utils' with {type: 'macro'};
 import {FieldGroup, FieldLabel, HelpText} from './Field';
@@ -50,11 +50,7 @@ export interface DateRangePickerProps<T extends DateValue> extends
      * The maximum number of months to display at once in the calendar popover, if screen space permits.
      * @default 1
      */
-    maxVisibleMonths?: number,
-    /**
-     * The error message to display when the calendar is invalid.
-     */
-    errorMessage?: ReactNode
+    maxVisibleMonths?: number
 }
 
 export const DateRangePickerContext = createContext<ContextValue<Partial<DateRangePickerProps<any>>, HTMLDivElement>>(null);
@@ -111,6 +107,10 @@ export const DateRangePicker = /*#__PURE__*/ (forwardRef as forwardRefType)(func
           || state.granularity === 'second'
             ? state.granularity : undefined;
         let showTimeField = !!timeGranularity;
+
+        // Ideally, we could omit errorMessage here and let S2 Calendar read it from RAC's CalendarContext which already contains the resolved value via calendarProps from useDatePicker.
+        // However, RAC's CalendarProps omits errorMessage, so reading it back from the context would require an unsafe cast. Instead, we resolve it here using the same logic as useDatePicker.
+        let resolvedErrorMessage = typeof errorMessage === 'function' ? errorMessage(state.displayValidation) : (errorMessage || state.displayValidation.validationErrors.join(' '));
         return (
           <>
             <FieldLabel
@@ -156,7 +156,7 @@ export const DateRangePicker = /*#__PURE__*/ (forwardRef as forwardRefType)(func
                 visibleMonths={maxVisibleMonths}
                 createCalendar={createCalendar}
                 interactOutsideBehavior={interactOutsideBehavior}
-                errorMessage={errorMessage} />
+                errorMessage={resolvedErrorMessage} />
               {showTimeField && (
                 <div className={style({display: 'flex', gap: 16, contain: 'inline-size', marginTop: 24})}>
                   <TimeField
@@ -189,7 +189,7 @@ export const DateRangePicker = /*#__PURE__*/ (forwardRef as forwardRefType)(func
               isDisabled={isDisabled}
               isInvalid={isInvalid}
               description={descriptionMessage}>
-              {errorMessage}
+              {resolvedErrorMessage}
             </HelpText>
           </>
         );
diff --git a/packages/@react-spectrum/test-utils/package.json b/packages/@react-spectrum/test-utils/package.json
index e86b0c3775e..7f56ee3bbb7 100644
--- a/packages/@react-spectrum/test-utils/package.json
+++ b/packages/@react-spectrum/test-utils/package.json
@@ -29,7 +29,6 @@
     "@swc/helpers": "^0.5.0"
   },
   "peerDependencies": {
-    "@testing-library/dom": "^10.1.0",
     "@testing-library/react": "^16.0.0",
     "@testing-library/user-event": "^14.0.0",
     "jest": "^29.5.0",
diff --git a/yarn.lock b/yarn.lock
index 42216ae15c6..c7f92c4e854 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6428,7 +6428,6 @@ __metadata:
   dependencies:
     "@swc/helpers": "npm:^0.5.0"
   peerDependencies:
-    "@testing-library/dom": ^10.1.0
     "@testing-library/react": ^16.0.0
     "@testing-library/user-event": ^14.0.0
     react: ^16.8.0 || ^17.0.0-rc.1 || ^18.0.0 || ^19.0.0-rc.1
@@ -7393,7 +7392,6 @@ __metadata:
     "@react-aria/test-utils": "npm:1.0.0-beta.2"
     "@swc/helpers": "npm:^0.5.0"
   peerDependencies:
-    "@testing-library/dom": ^10.1.0
     "@testing-library/react": ^16.0.0
     "@testing-library/user-event": ^14.0.0
     jest: ^29.5.0