diff --git a/ChangeLog-9.6.md b/ChangeLog-9.6.md
index f8c71a0e21a..1dfb1d129cd 100644
--- a/ChangeLog-9.6.md
+++ b/ChangeLog-9.6.md
@@ -6,6 +6,7 @@ All notable changes of the PHPUnit 9.6 release series are documented in this fil
 
 ### Changed
 
+* [#5062](https://github.com/sebastianbergmann/phpunit/issues/5062): Deprecate `expectDeprecation()`, `expectDeprecationMessage()`, `expectDeprecationMessageMatches()`, `expectError()`, `expectErrorMessage()`, `expectErrorMessageMatches()`, `expectNotice()`, `expectNoticeMessage()`, `expectNoticeMessageMatches()`, `expectWarning()`, `expectWarningMessage()`, and `expectWarningMessageMatches()`
 * [#5064](https://github.com/sebastianbergmann/phpunit/issues/5064): Deprecate `PHPUnit\Framework\TestCase::getMockClass()`
 * [#5132](https://github.com/sebastianbergmann/phpunit/issues/5132): Deprecate `Test` suffix for abstract test case classes
 
diff --git a/src/Framework/TestCase.php b/src/Framework/TestCase.php
index cd242609cfd..2d83fe0182d 100644
--- a/src/Framework/TestCase.php
+++ b/src/Framework/TestCase.php
@@ -599,22 +599,22 @@ public function expectException(string $exception): void
         // @codeCoverageIgnoreStart
         switch ($exception) {
             case Deprecated::class:
-                $this->addWarning('Support for using expectException() with PHPUnit\Framework\Error\Deprecated is deprecated and will be removed in PHPUnit 10. Use expectDeprecation() instead.');
+                $this->addWarning('Expecting E_DEPRECATED and E_USER_DEPRECATED is deprecated and will no longer be possible in PHPUnit 10.');
 
                 break;
 
             case Error::class:
-                $this->addWarning('Support for using expectException() with PHPUnit\Framework\Error\Error is deprecated and will be removed in PHPUnit 10. Use expectError() instead.');
+                $this->addWarning('Expecting E_ERROR and E_USER_ERROR is deprecated and will no longer be possible in PHPUnit 10.');
 
                 break;
 
             case Notice::class:
-                $this->addWarning('Support for using expectException() with PHPUnit\Framework\Error\Notice is deprecated and will be removed in PHPUnit 10. Use expectNotice() instead.');
+                $this->addWarning('Expecting E_STRICT, E_NOTICE, and E_USER_NOTICE is deprecated and will no longer be possible in PHPUnit 10.');
 
                 break;
 
             case WarningError::class:
-                $this->addWarning('Support for using expectException() with PHPUnit\Framework\Error\Warning is deprecated and will be removed in PHPUnit 10. Use expectWarning() instead.');
+                $this->addWarning('Expecting E_WARNING and E_USER_WARNING is deprecated and will no longer be possible in PHPUnit 10.');
 
                 break;
         }
@@ -658,63 +658,123 @@ public function expectNotToPerformAssertions(): void
         $this->doesNotPerformAssertions = true;
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectDeprecation(): void
     {
+        $this->addWarning('Expecting E_DEPRECATED and E_USER_DEPRECATED is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectedException = Deprecated::class;
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectDeprecationMessage(string $message): void
     {
+        $this->addWarning('Expecting E_DEPRECATED and E_USER_DEPRECATED is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectExceptionMessage($message);
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectDeprecationMessageMatches(string $regularExpression): void
     {
+        $this->addWarning('Expecting E_DEPRECATED and E_USER_DEPRECATED is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectExceptionMessageMatches($regularExpression);
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectNotice(): void
     {
+        $this->addWarning('Expecting E_STRICT, E_NOTICE, and E_USER_NOTICE is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectedException = Notice::class;
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectNoticeMessage(string $message): void
     {
+        $this->addWarning('Expecting E_STRICT, E_NOTICE, and E_USER_NOTICE is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectExceptionMessage($message);
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectNoticeMessageMatches(string $regularExpression): void
     {
+        $this->addWarning('Expecting E_STRICT, E_NOTICE, and E_USER_NOTICE is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectExceptionMessageMatches($regularExpression);
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectWarning(): void
     {
+        $this->addWarning('Expecting E_WARNING and E_USER_WARNING is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectedException = WarningError::class;
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectWarningMessage(string $message): void
     {
+        $this->addWarning('Expecting E_WARNING and E_USER_WARNING is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectExceptionMessage($message);
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectWarningMessageMatches(string $regularExpression): void
     {
+        $this->addWarning('Expecting E_WARNING and E_USER_WARNING is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectExceptionMessageMatches($regularExpression);
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectError(): void
     {
+        $this->addWarning('Expecting E_ERROR and E_USER_ERROR is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectedException = Error::class;
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectErrorMessage(string $message): void
     {
+        $this->addWarning('Expecting E_ERROR and E_USER_ERROR is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectExceptionMessage($message);
     }
 
+    /**
+     * @deprecated https://github.com/sebastianbergmann/phpunit/issues/5062
+     */
     public function expectErrorMessageMatches(string $regularExpression): void
     {
+        $this->addWarning('Expecting E_ERROR and E_USER_ERROR is deprecated and will no longer be possible in PHPUnit 10.');
+
         $this->expectExceptionMessageMatches($regularExpression);
     }
 
diff --git a/tests/end-to-end/regression/4663.phpt b/tests/end-to-end/regression/4663.phpt
deleted file mode 100644
index c3cf6ae5ce7..00000000000
--- a/tests/end-to-end/regression/4663.phpt
+++ /dev/null
@@ -1,19 +0,0 @@
---TEST--
-https://github.com/sebastianbergmann/phpunit/issues/4663
---FILE--
-<?php declare(strict_types=1);
-$_SERVER['argv'][] = '--do-not-cache-result';
-$_SERVER['argv'][] = '--no-configuration';
-$_SERVER['argv'][] = __DIR__ . '/4663/Issue4663Test.php';
-
-require_once __DIR__ . '/../../bootstrap.php';
-
-PHPUnit\TextUI\Command::main();
---EXPECTF--
-PHPUnit %s by Sebastian Bergmann and contributors.
-
-.                                                                   1 / 1 (100%)
-
-Time: %s, Memory: %s
-
-OK (1 test, 2 assertions)
diff --git a/tests/end-to-end/regression/4663/Issue4663Test.php b/tests/end-to-end/regression/4663/Issue4663Test.php
deleted file mode 100644
index cc93727a01b..00000000000
--- a/tests/end-to-end/regression/4663/Issue4663Test.php
+++ /dev/null
@@ -1,20 +0,0 @@
-<?php declare(strict_types=1);
-/*
- * This file is part of PHPUnit.
- *
- * (c) Sebastian Bergmann <sebastian@phpunit.de>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-use PHPUnit\Framework\TestCase;
-
-final class Issue4663Test extends TestCase
-{
-    public function testTestThatExpectsAnErrorPassesWhenTheErrorOccurs(): void
-    {
-        $this->expectError();
-
-        \implode('', [new stdClass]);
-    }
-}
diff --git a/tests/unit/Framework/TestCaseTest.php b/tests/unit/Framework/TestCaseTest.php
index 9d2169f7813..0baed217be0 100644
--- a/tests/unit/Framework/TestCaseTest.php
+++ b/tests/unit/Framework/TestCaseTest.php
@@ -9,10 +9,6 @@
  */
 namespace PHPUnit\Framework;
 
-use const E_USER_DEPRECATED;
-use const E_USER_ERROR;
-use const E_USER_NOTICE;
-use const E_USER_WARNING;
 use const PHP_EOL;
 use function array_map;
 use function get_class;
@@ -20,7 +16,6 @@
 use function ini_get;
 use function ini_set;
 use function sprintf;
-use function trigger_error;
 use DependencyInputTest;
 use InvalidArgumentException;
 use PHPUnit\Framework\MockObject\MockObject;
@@ -1267,42 +1262,6 @@ public function testHasOutputReturnsTrueWhenTestGeneratesOutput(): void
         $this->assertTrue($test->hasOutput());
     }
 
-    public function testDeprecationCanBeExpected(): void
-    {
-        $this->expectDeprecation();
-        $this->expectDeprecationMessage('foo');
-        $this->expectDeprecationMessageMatches('/foo/');
-
-        trigger_error('foo', E_USER_DEPRECATED);
-    }
-
-    public function testNoticeCanBeExpected(): void
-    {
-        $this->expectNotice();
-        $this->expectNoticeMessage('foo');
-        $this->expectNoticeMessageMatches('/foo/');
-
-        trigger_error('foo', E_USER_NOTICE);
-    }
-
-    public function testWarningCanBeExpected(): void
-    {
-        $this->expectWarning();
-        $this->expectWarningMessage('foo');
-        $this->expectWarningMessageMatches('/foo/');
-
-        trigger_error('foo', E_USER_WARNING);
-    }
-
-    public function testErrorCanBeExpected(): void
-    {
-        $this->expectError();
-        $this->expectErrorMessage('foo');
-        $this->expectErrorMessageMatches('/foo/');
-
-        trigger_error('foo', E_USER_ERROR);
-    }
-
     public function testSetDependencyInput(): void
     {
         $test = new DependencyInputTest('testDependencyInputAsParameter');