diff --git a/UPGRADE.md b/UPGRADE.md
index 397df3f1b3a..4b2ccf255e2 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -8,6 +8,10 @@ awareness about deprecated code.
 
 # Upgrade to 4.0
 
+## Removed support for `Connection::lastInsertId($name)`
+
+The `Connection::lastInsertId()` method no longer accepts a sequence name.
+
 ## Removed defaults for MySQL table charset, collation and engine
 
 The library no longer provides the default values for MySQL table charset, collation and engine.
diff --git a/src/Connection.php b/src/Connection.php
index b2b3d8d4d30..8435bcfc2fd 100644
--- a/src/Connection.php
+++ b/src/Connection.php
@@ -32,7 +32,6 @@
 use Doctrine\DBAL\Schema\AbstractSchemaManager;
 use Doctrine\DBAL\SQL\Parser;
 use Doctrine\DBAL\Types\Type;
-use Doctrine\Deprecations\Deprecation;
 use Throwable;
 use Traversable;
 
@@ -1104,31 +1103,20 @@ public function getTransactionNestingLevel(): int
     }
 
     /**
-     * Returns the ID of the last inserted row, or the last value from a sequence object,
-     * depending on the underlying driver.
+     * Returns the ID of the last inserted row.
      *
      * Note: This method may not return a meaningful or consistent result across different drivers,
      * because the underlying database may not even support the notion of AUTO_INCREMENT/IDENTITY
-     * columns or sequences.
-     *
-     * @param string|null $name Name of the sequence object from which the ID should be returned.
+     * columns.
      *
      * @return string A string representation of the last inserted ID.
      *
      * @throws Exception
      */
-    public function lastInsertId(?string $name = null): string
+    public function lastInsertId(): string
     {
-        if ($name !== null) {
-            Deprecation::trigger(
-                'doctrine/dbal',
-                'https://github.com/doctrine/dbal/issues/4687',
-                'The usage of Connection::lastInsertId() with a sequence name is deprecated.'
-            );
-        }
-
         try {
-            return $this->getWrappedConnection()->lastInsertId($name);
+            return $this->getWrappedConnection()->lastInsertId();
         } catch (Driver\Exception $e) {
             throw $this->convertException($e);
         }
diff --git a/src/Driver/Connection.php b/src/Driver/Connection.php
index e094dadc3d1..73c46c1e8d4 100644
--- a/src/Driver/Connection.php
+++ b/src/Driver/Connection.php
@@ -37,11 +37,11 @@ public function quote(string $value): string;
     public function exec(string $sql): int;
 
     /**
-     * Returns the ID of the last inserted row or sequence value.
+     * Returns the ID of the last inserted row.
      *
      * @throws Exception
      */
-    public function lastInsertId(?string $name = null): string;
+    public function lastInsertId(): string;
 
     /**
      * Initiates a transaction.
diff --git a/src/Driver/IBMDB2/Connection.php b/src/Driver/IBMDB2/Connection.php
index c711c0b38d7..5eb350cfc19 100644
--- a/src/Driver/IBMDB2/Connection.php
+++ b/src/Driver/IBMDB2/Connection.php
@@ -11,7 +11,6 @@
 use Doctrine\DBAL\Driver\Result as ResultInterface;
 use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
 use Doctrine\DBAL\Driver\Statement as DriverStatement;
-use Doctrine\Deprecations\Deprecation;
 use stdClass;
 
 use function assert;
@@ -103,16 +102,8 @@ public function exec(string $sql): int
         return db2_num_rows($stmt);
     }
 
-    public function lastInsertId(?string $name = null): string
+    public function lastInsertId(): string
     {
-        if ($name !== null) {
-            Deprecation::triggerIfCalledFromOutside(
-                'doctrine/dbal',
-                'https://github.com/doctrine/dbal/issues/4687',
-                'The usage of Connection::lastInsertId() with a sequence name is deprecated.'
-            );
-        }
-
         return db2_last_insert_id($this->conn);
     }
 
diff --git a/src/Driver/Mysqli/Connection.php b/src/Driver/Mysqli/Connection.php
index cd7ec5c6c02..4a491e15bf8 100644
--- a/src/Driver/Mysqli/Connection.php
+++ b/src/Driver/Mysqli/Connection.php
@@ -10,7 +10,6 @@
 use Doctrine\DBAL\Driver\Result as ResultInterface;
 use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
 use Doctrine\DBAL\Driver\Statement as DriverStatement;
-use Doctrine\Deprecations\Deprecation;
 use mysqli;
 
 use function assert;
@@ -126,16 +125,8 @@ public function exec(string $sql): int
         return $this->conn->affected_rows;
     }
 
-    public function lastInsertId(?string $name = null): string
+    public function lastInsertId(): string
     {
-        if ($name !== null) {
-            Deprecation::triggerIfCalledFromOutside(
-                'doctrine/dbal',
-                'https://github.com/doctrine/dbal/issues/4687',
-                'The usage of Connection::lastInsertId() with a sequence name is deprecated.'
-            );
-        }
-
         return (string) $this->conn->insert_id;
     }
 
diff --git a/src/Driver/OCI8/Connection.php b/src/Driver/OCI8/Connection.php
index 153fe549c01..87d4dc7c4eb 100644
--- a/src/Driver/OCI8/Connection.php
+++ b/src/Driver/OCI8/Connection.php
@@ -8,11 +8,9 @@
 use Doctrine\DBAL\Driver\Exception\IdentityColumnsNotSupported;
 use Doctrine\DBAL\Driver\OCI8\Exception\ConnectionFailed;
 use Doctrine\DBAL\Driver\OCI8\Exception\Error;
-use Doctrine\DBAL\Driver\OCI8\Exception\SequenceDoesNotExist;
 use Doctrine\DBAL\Driver\Result as ResultInterface;
 use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
 use Doctrine\DBAL\Driver\Statement as DriverStatement;
-use Doctrine\Deprecations\Deprecation;
 
 use function addcslashes;
 use function assert;
@@ -97,25 +95,9 @@ public function exec(string $sql): int
         return $this->prepare($sql)->execute()->rowCount();
     }
 
-    public function lastInsertId(?string $name = null): string
+    public function lastInsertId(): string
     {
-        if ($name === null) {
-            throw IdentityColumnsNotSupported::new();
-        }
-
-        Deprecation::triggerIfCalledFromOutside(
-            'doctrine/dbal',
-            'https://github.com/doctrine/dbal/issues/4687',
-            'The usage of Connection::lastInsertId() with a sequence name is deprecated.'
-        );
-
-        $result = $this->query('SELECT ' . $name . '.CURRVAL FROM DUAL')->fetchOne();
-
-        if ($result === false) {
-            throw SequenceDoesNotExist::new();
-        }
-
-        return $result;
+        throw IdentityColumnsNotSupported::new();
     }
 
     public function beginTransaction(): void
diff --git a/src/Driver/PDO/Connection.php b/src/Driver/PDO/Connection.php
index a96f47d2dd2..e6942c6386a 100644
--- a/src/Driver/PDO/Connection.php
+++ b/src/Driver/PDO/Connection.php
@@ -8,7 +8,6 @@
 use Doctrine\DBAL\Driver\Result as ResultInterface;
 use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
 use Doctrine\DBAL\Driver\Statement as StatementInterface;
-use Doctrine\Deprecations\Deprecation;
 use PDO;
 use PDOException;
 use PDOStatement;
@@ -89,20 +88,10 @@ public function quote(string $value): string
         return $this->connection->quote($value);
     }
 
-    public function lastInsertId(?string $name = null): string
+    public function lastInsertId(): string
     {
         try {
-            if ($name === null) {
-                return $this->connection->lastInsertId();
-            }
-
-            Deprecation::triggerIfCalledFromOutside(
-                'doctrine/dbal',
-                'https://github.com/doctrine/dbal/issues/4687',
-                'The usage of Connection::lastInsertId() with a sequence name is deprecated.'
-            );
-
-            return $this->connection->lastInsertId($name);
+            return $this->connection->lastInsertId();
         } catch (PDOException $exception) {
             throw Exception::new($exception);
         }
diff --git a/src/Driver/PDO/SQLSrv/Connection.php b/src/Driver/PDO/SQLSrv/Connection.php
index 6c8732178b5..db18ca387be 100644
--- a/src/Driver/PDO/SQLSrv/Connection.php
+++ b/src/Driver/PDO/SQLSrv/Connection.php
@@ -8,7 +8,6 @@
 use Doctrine\DBAL\Driver\Result;
 use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
 use Doctrine\DBAL\Driver\Statement as StatementInterface;
-use Doctrine\Deprecations\Deprecation;
 use PDO;
 
 final class Connection implements ServerInfoAwareConnection
@@ -43,21 +42,9 @@ public function exec(string $sql): int
         return $this->connection->exec($sql);
     }
 
-    public function lastInsertId(?string $name = null): string
+    public function lastInsertId(): string
     {
-        if ($name === null) {
-            return $this->connection->lastInsertId($name);
-        }
-
-        Deprecation::triggerIfCalledFromOutside(
-            'doctrine/dbal',
-            'https://github.com/doctrine/dbal/issues/4687',
-            'The usage of Connection::lastInsertId() with a sequence name is deprecated.'
-        );
-
-        return $this->prepare('SELECT CONVERT(VARCHAR(MAX), current_value) FROM sys.sequences WHERE name = ?')
-            ->execute([$name])
-            ->fetchOne();
+        return $this->connection->lastInsertId();
     }
 
     public function beginTransaction(): void
diff --git a/src/Driver/SQLSrv/Connection.php b/src/Driver/SQLSrv/Connection.php
index 2cd1e37c6ae..a6be6eabb8a 100644
--- a/src/Driver/SQLSrv/Connection.php
+++ b/src/Driver/SQLSrv/Connection.php
@@ -9,7 +9,6 @@
 use Doctrine\DBAL\Driver\ServerInfoAwareConnection;
 use Doctrine\DBAL\Driver\SQLSrv\Exception\Error;
 use Doctrine\DBAL\Driver\Statement as DriverStatement;
-use Doctrine\Deprecations\Deprecation;
 
 use function sqlsrv_begin_transaction;
 use function sqlsrv_commit;
@@ -87,22 +86,9 @@ public function exec(string $sql): int
         return $rowsAffected;
     }
 
-    public function lastInsertId(?string $name = null): string
+    public function lastInsertId(): string
     {
-        if ($name !== null) {
-            Deprecation::triggerIfCalledFromOutside(
-                'doctrine/dbal',
-                'https://github.com/doctrine/dbal/issues/4687',
-                'The usage of Connection::lastInsertId() with a sequence name is deprecated.'
-            );
-
-            $result = $this->prepare('SELECT CONVERT(VARCHAR(MAX), current_value) FROM sys.sequences WHERE name = ?')
-                ->execute([$name]);
-        } else {
-            $result = $this->query('SELECT @@IDENTITY');
-        }
-
-        return $result->fetchOne();
+        return $this->query('SELECT @@IDENTITY')->fetchOne();
     }
 
     public function beginTransaction(): void
diff --git a/src/Portability/Connection.php b/src/Portability/Connection.php
index e9e908e6e13..3ec0b7ecf58 100644
--- a/src/Portability/Connection.php
+++ b/src/Portability/Connection.php
@@ -7,7 +7,6 @@
 use Doctrine\DBAL\Driver\Connection as ConnectionInterface;
 use Doctrine\DBAL\Driver\Result as DriverResult;
 use Doctrine\DBAL\Driver\Statement as DriverStatement;
-use Doctrine\Deprecations\Deprecation;
 
 /**
  * Portability wrapper for a Connection.
@@ -58,17 +57,9 @@ public function exec(string $sql): int
         return $this->connection->exec($sql);
     }
 
-    public function lastInsertId(?string $name = null): string
+    public function lastInsertId(): string
     {
-        if ($name !== null) {
-            Deprecation::triggerIfCalledFromOutside(
-                'doctrine/dbal',
-                'https://github.com/doctrine/dbal/issues/4687',
-                'The usage of Connection::lastInsertId() with a sequence name is deprecated.'
-            );
-        }
-
-        return $this->connection->lastInsertId($name);
+        return $this->connection->lastInsertId();
     }
 
     public function beginTransaction(): void
diff --git a/tests/Functional/Driver/OCI8/ConnectionTest.php b/tests/Functional/Driver/OCI8/ConnectionTest.php
deleted file mode 100644
index dbb6f0db493..00000000000
--- a/tests/Functional/Driver/OCI8/ConnectionTest.php
+++ /dev/null
@@ -1,45 +0,0 @@
-<?php
-
-declare(strict_types=1);
-
-namespace Doctrine\DBAL\Tests\Functional\Driver\OCI8;
-
-use Doctrine\DBAL\Driver\OCI8\Driver;
-use Doctrine\DBAL\Schema\Table;
-use Doctrine\DBAL\Tests\FunctionalTestCase;
-
-/**
- * @requires extension oci8
- */
-class ConnectionTest extends FunctionalTestCase
-{
-    protected function setUp(): void
-    {
-        parent::setUp();
-
-        if ($this->connection->getDriver() instanceof Driver) {
-            return;
-        }
-
-        self::markTestSkipped('oci8 only test.');
-    }
-
-    public function testLastInsertIdAcceptsFqn(): void
-    {
-        $platform      = $this->connection->getDatabasePlatform();
-        $schemaManager = $this->connection->createSchemaManager();
-
-        $table = new Table('DBAL2595');
-        $table->addColumn('id', 'integer', ['autoincrement' => true]);
-        $table->addColumn('foo', 'integer');
-
-        $schemaManager->dropAndCreateTable($table);
-
-        $this->connection->executeStatement('INSERT INTO DBAL2595 (foo) VALUES (1)');
-
-        $schema   = $this->connection->getDatabase();
-        $sequence = $platform->getIdentitySequenceName($schema . '.DBAL2595', 'id');
-
-        self::assertEquals(1, $this->connection->lastInsertId($sequence));
-    }
-}
diff --git a/tests/Functional/Ticket/DBAL630Test.php b/tests/Functional/Ticket/DBAL630Test.php
index bdc3c4d6b6a..7a8456da0be 100644
--- a/tests/Functional/Ticket/DBAL630Test.php
+++ b/tests/Functional/Ticket/DBAL630Test.php
@@ -25,8 +25,8 @@ protected function setUp(): void
         }
 
         try {
-            $this->connection->executeStatement('CREATE TABLE dbal630 (id SERIAL, bool_col BOOLEAN NOT NULL);');
-            $this->connection->executeStatement('CREATE TABLE dbal630_allow_nulls (id SERIAL, bool_col BOOLEAN);');
+            $this->connection->executeStatement('CREATE TABLE dbal630 (id SERIAL, bool_col BOOLEAN NOT NULL)');
+            $this->connection->executeStatement('CREATE TABLE dbal630_allow_nulls (id SERIAL, bool_col BOOLEAN)');
         } catch (Exception $e) {
         }
 
@@ -47,7 +47,7 @@ protected function tearDown(): void
     public function testBooleanConversionSqlLiteral(): void
     {
         $this->connection->executeStatement('INSERT INTO dbal630 (bool_col) VALUES(false)');
-        $id = $this->connection->lastInsertId('dbal630_id_seq');
+        $id = $this->connection->lastInsertId();
         self::assertNotEmpty($id);
 
         $row = $this->connection->fetchAssociative('SELECT bool_col FROM dbal630 WHERE id = ?', [$id]);
@@ -63,7 +63,7 @@ public function testBooleanConversionBoolParamRealPrepares(): void
             ['false'],
             [ParameterType::BOOLEAN]
         );
-        $id = $this->connection->lastInsertId('dbal630_id_seq');
+        $id = $this->connection->lastInsertId();
         self::assertNotEmpty($id);
 
         $row = $this->connection->fetchAssociative('SELECT bool_col FROM dbal630 WHERE id = ?', [$id]);
@@ -84,7 +84,7 @@ public function testBooleanConversionBoolParamEmulatedPrepares(): void
         $stmt->bindValue(1, $platform->convertBooleansToDatabaseValue('false'), ParameterType::BOOLEAN);
         $stmt->execute();
 
-        $id = $this->connection->lastInsertId('dbal630_id_seq');
+        $id = $this->connection->lastInsertId();
 
         self::assertNotEmpty($id);
 
@@ -111,7 +111,7 @@ public function testBooleanConversionNullParamEmulatedPrepares(
         $stmt->bindValue(1, $platform->convertBooleansToDatabaseValue($statementValue));
         $stmt->execute();
 
-        $id = $this->connection->lastInsertId('dbal630_allow_nulls_id_seq');
+        $id = $this->connection->lastInsertId();
 
         self::assertNotEmpty($id);
 
@@ -142,7 +142,7 @@ public function testBooleanConversionNullParamEmulatedPreparesWithBooleanTypeInB
         );
         $stmt->execute();
 
-        $id = $this->connection->lastInsertId('dbal630_allow_nulls_id_seq');
+        $id = $this->connection->lastInsertId();
 
         self::assertNotEmpty($id);
 
diff --git a/tests/Functional/WriteTest.php b/tests/Functional/WriteTest.php
index fd1e4be4cf4..2f783f3fc7d 100644
--- a/tests/Functional/WriteTest.php
+++ b/tests/Functional/WriteTest.php
@@ -7,14 +7,10 @@
 use DateTime;
 use Doctrine\DBAL\Exception\DriverException;
 use Doctrine\DBAL\ParameterType;
-use Doctrine\DBAL\Schema\Sequence;
 use Doctrine\DBAL\Schema\Table;
 use Doctrine\DBAL\Tests\FunctionalTestCase;
 use Throwable;
 
-use function array_filter;
-use function strtolower;
-
 class WriteTest extends FunctionalTestCase
 {
     protected function setUp(): void
@@ -151,51 +147,21 @@ public function testLastInsertId(): void
         }
 
         self::assertEquals(1, $this->connection->insert('write_table', ['test_int' => 2, 'test_string' => 'bar']));
-        $num = $this->lastInsertId();
+        $num = $this->connection->lastInsertId();
 
         self::assertGreaterThan(0, $num, 'LastInsertId() should be non-negative number.');
     }
 
-    public function testLastInsertIdSequence(): void
+    public function testLastInsertIdNotSupported(): void
     {
-        if (! $this->connection->getDatabasePlatform()->supportsSequences()) {
-            self::markTestSkipped('Test only works on platforms with sequences.');
-        }
-
-        $sequence = new Sequence('write_table_id_seq');
-        try {
-            $this->connection->createSchemaManager()->createSequence($sequence);
-        } catch (Throwable $e) {
-        }
-
-        $sequences = $this->connection->createSchemaManager()->listSequences();
-        self::assertCount(1, array_filter($sequences, static function ($sequence): bool {
-            return strtolower($sequence->getName()) === 'write_table_id_seq';
-        }));
-
-        $nextSequenceVal = $this->connection->fetchOne(
-            $this->connection->getDatabasePlatform()->getSequenceNextValSQL('write_table_id_seq')
-        );
-
-        $lastInsertId = $this->lastInsertId('write_table_id_seq');
-
-        self::assertGreaterThan(0, $lastInsertId);
-        self::assertEquals($nextSequenceVal, $lastInsertId);
-    }
-
-    public function testLastInsertIdNoSequenceGiven(): void
-    {
-        if (
-            ! $this->connection->getDatabasePlatform()->supportsSequences()
-            || $this->connection->getDatabasePlatform()->supportsIdentityColumns()
-        ) {
+        if ($this->connection->getDatabasePlatform()->supportsIdentityColumns()) {
             self::markTestSkipped(
-                "Test only works consistently on platforms that support sequences and don't support identity columns."
+                "Test only works consistently on platforms that don't support identity columns."
             );
         }
 
         $this->expectException(DriverException::class);
-        $this->lastInsertId();
+        $this->connection->lastInsertId();
     }
 
     public function testInsertWithKeyValueTypes(): void
@@ -269,9 +235,9 @@ public function testEmptyIdentityInsert(): void
     {
         $platform = $this->connection->getDatabasePlatform();
 
-        if (! ($platform->supportsIdentityColumns() || $platform->usesSequenceEmulatedIdentityColumns())) {
+        if (! $platform->supportsIdentityColumns()) {
             self::markTestSkipped(
-                'Test only works on platforms with identity columns or sequence emulated identity columns.'
+                'Test only works on platforms with identity columns.'
             );
         }
 
@@ -288,19 +254,15 @@ public function testEmptyIdentityInsert(): void
             $this->connection->executeStatement($sql);
         }
 
-        $seqName = $platform->usesSequenceEmulatedIdentityColumns()
-            ? $platform->getIdentitySequenceName('test_empty_identity', 'id')
-            : null;
-
         $sql = $platform->getEmptyIdentityInsertSQL('test_empty_identity', 'id');
 
         $this->connection->executeStatement($sql);
 
-        $firstId = $this->lastInsertId($seqName);
+        $firstId = $this->connection->lastInsertId();
 
         $this->connection->executeStatement($sql);
 
-        $secondId = $this->lastInsertId($seqName);
+        $secondId = $this->connection->lastInsertId();
 
         self::assertGreaterThan($firstId, $secondId);
     }
@@ -345,23 +307,4 @@ public function testDeleteWhereIsNull(): void
 
         self::assertCount(0, $data);
     }
-
-    /**
-     * Returns the ID of the last inserted row or skips the test if the currently used driver
-     * doesn't support this feature
-     *
-     * @throws DriverException
-     */
-    private function lastInsertId(?string $name = null): string
-    {
-        try {
-            return $this->connection->lastInsertId($name);
-        } catch (DriverException $e) {
-            if ($e->getSQLState() === 'IM001') {
-                self::markTestSkipped($e->getMessage());
-            }
-
-            throw $e;
-        }
-    }
 }