diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index d1bab0a6233..5c9ae3a0554 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -41,6 +41,7 @@ jobs:
           - "8.0"
           - "8.1"
           - "8.2"
+          - "8.3"
         dependencies:
           - "highest"
         extension:
@@ -106,8 +107,8 @@ jobs:
       matrix:
         php-version:
           - "7.4"
-          - "8.1"
           - "8.2"
+          - "8.3"
         oracle-version:
           - "21"
         include:
@@ -164,8 +165,8 @@ jobs:
       matrix:
         php-version:
           - "7.4"
-          - "8.1"
           - "8.2"
+          - "8.3"
         oracle-version:
           - "21"
         include:
@@ -229,16 +230,16 @@ jobs:
           - "pgsql"
           - "pdo_pgsql"
         include:
-          - php-version: "8.1"
+          - php-version: "8.2"
             postgres-version: "15"
             extension: "pgsql"
-          - php-version: "8.2"
+          - php-version: "8.3"
             postgres-version: "15"
             extension: "pgsql"
-          - php-version: "8.1"
+          - php-version: "8.2"
             postgres-version: "15"
             extension: "pdo_pgsql"
-          - php-version: "8.2"
+          - php-version: "8.3"
             postgres-version: "15"
             extension: "pdo_pgsql"
 
@@ -302,22 +303,22 @@ jobs:
           - "mysqli"
           - "pdo_mysql"
         include:
-          - php-version: "8.1"
+          - php-version: "8.2"
             mariadb-version: "10.7"
             extension: "mysqli"
-          - php-version: "8.1"
+          - php-version: "8.2"
             mariadb-version: "10.7"
             extension: "pdo_mysql"
-          - php-version: "8.1"
+          - php-version: "8.2"
             mariadb-version: "10.11"
             extension: "mysqli"
-          - php-version: "8.1"
+          - php-version: "8.2"
             mariadb-version: "10.11"
             extension: "pdo_mysql"
-          - php-version: "8.2"
+          - php-version: "8.3"
             mariadb-version: "10.11"
             extension: "mysqli"
-          - php-version: "8.2"
+          - php-version: "8.3"
             mariadb-version: "10.11"
             extension: "pdo_mysql"
 
@@ -371,7 +372,7 @@ jobs:
       matrix:
         php-version:
           - "7.4"
-          - "8.0"
+          - "8.1"
         mysql-version:
           - "5.7"
           - "8.0"
@@ -390,20 +391,20 @@ jobs:
             php-version: "7.4"
             mysql-version: "8.0"
             extension: "mysqli"
-          - php-version: "8.1"
+          - php-version: "8.2"
             mysql-version: "8.0"
             extension: "mysqli"
             custom-entrypoint: >-
               --entrypoint sh mysql:8 -c "exec docker-entrypoint.sh mysqld --default-authentication-plugin=mysql_native_password"
-          - php-version: "8.1"
+          - php-version: "8.2"
             mysql-version: "8.0"
             extension: "pdo_mysql"
             custom-entrypoint: >-
               --entrypoint sh mysql:8 -c "exec docker-entrypoint.sh mysqld --default-authentication-plugin=mysql_native_password"
-          - php-version: "8.2"
+          - php-version: "8.3"
             mysql-version: "8.0"
             extension: "mysqli"
-          - php-version: "8.2"
+          - php-version: "8.3"
             mysql-version: "8.0"
             extension: "pdo_mysql"
 
@@ -461,8 +462,8 @@ jobs:
       matrix:
         php-version:
           - "7.4"
-          - "8.1"
           - "8.2"
+          - "8.3"
         extension:
           - "sqlsrv"
           - "pdo_sqlsrv"
@@ -529,6 +530,7 @@ jobs:
         php-version:
           - "7.4"
           - "8.2"
+          - "8.3"
 
     services:
       ibm_db2:
diff --git a/src/Platforms/AbstractPlatform.php b/src/Platforms/AbstractPlatform.php
index 1d33038411f..033e952e24a 100644
--- a/src/Platforms/AbstractPlatform.php
+++ b/src/Platforms/AbstractPlatform.php
@@ -4155,7 +4155,7 @@ public function getDefaultSchemaName()
      */
     public function supportsCreateDropDatabase()
     {
-        Deprecation::trigger(
+        Deprecation::triggerIfCalledFromOutside(
             'doctrine/dbal',
             'https://github.com/doctrine/dbal/pull/5513',
             '%s is deprecated.',
diff --git a/src/Platforms/PostgreSQLPlatform.php b/src/Platforms/PostgreSQLPlatform.php
index 9c528438734..9e6648cbda2 100644
--- a/src/Platforms/PostgreSQLPlatform.php
+++ b/src/Platforms/PostgreSQLPlatform.php
@@ -10,6 +10,7 @@
 use Doctrine\DBAL\Schema\Index;
 use Doctrine\DBAL\Schema\PostgreSQLSchemaManager;
 use Doctrine\DBAL\Schema\Sequence;
+use Doctrine\DBAL\Schema\Table;
 use Doctrine\DBAL\Schema\TableDiff;
 use Doctrine\DBAL\Types\BinaryType;
 use Doctrine\DBAL\Types\BlobType;
@@ -810,6 +811,36 @@ public function getDropForeignKeySQL($foreignKey, $table)
         return $this->getDropConstraintSQL($foreignKey, $table);
     }
 
+    /**
+     * {@inheritDoc}
+     */
+    public function getDropIndexSQL($index, $table = null)
+    {
+        if ($index instanceof Index && $index->isPrimary() && $table !== null) {
+            $constraintName = $index->getName() === 'primary' ? $this->tableName($table) . '_pkey' : $index->getName();
+
+            return $this->getDropConstraintSQL($constraintName, $table);
+        }
+
+        if ($index === '"primary"' && $table !== null) {
+            $constraintName = $this->tableName($table) . '_pkey';
+
+            return $this->getDropConstraintSQL($constraintName, $table);
+        }
+
+        return parent::getDropIndexSQL($index, $table);
+    }
+
+    /**
+     * @param Table|string|null $table
+     *
+     * @return string
+     */
+    private function tableName($table)
+    {
+        return $table instanceof Table ? $table->getName() : (string) $table;
+    }
+
     /**
      * {@inheritDoc}
      */
diff --git a/tests/Functional/Driver/DBAL6024Test.php b/tests/Functional/Driver/DBAL6024Test.php
new file mode 100644
index 00000000000..4b6d3bf374f
--- /dev/null
+++ b/tests/Functional/Driver/DBAL6024Test.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Doctrine\DBAL\Tests\Functional\Driver;
+
+use Doctrine\DBAL\Schema\Table;
+use Doctrine\DBAL\Tests\FunctionalTestCase;
+use Doctrine\DBAL\Tests\TestUtil;
+
+class DBAL6024Test extends FunctionalTestCase
+{
+    protected function setUp(): void
+    {
+        if (TestUtil::isDriverOneOf('pdo_pgsql', 'pgsql')) {
+            return;
+        }
+
+        self::markTestSkipped('This test requires the pdo_pgsql or the pgsql driver.');
+    }
+
+    public function testDropPrimaryKey(): void
+    {
+        $table = new Table('mytable');
+        $table->addColumn('id', 'integer');
+        $table->setPrimaryKey(['id']);
+        $this->dropAndCreateTable($table);
+
+        $newTable = clone $table;
+        $newTable->dropPrimaryKey();
+
+        $schemaManager = $this->connection->createSchemaManager();
+        $diff          = $schemaManager->createComparator()->compareTables($table, $newTable);
+
+        $statements = $this->connection->getDatabasePlatform()->getAlterTableSQL($diff);
+        foreach ($statements as $statement) {
+            $this->connection->executeStatement($statement);
+        }
+
+        $validationSchema = $schemaManager->introspectSchema();
+        $validationTable  = $validationSchema->getTable($table->getName());
+
+        $this->assertNull($validationTable->getPrimaryKey());
+    }
+}
diff --git a/tests/Platforms/PostgreSQLPlatformTest.php b/tests/Platforms/PostgreSQLPlatformTest.php
index 67b05904421..614eb45f8f7 100644
--- a/tests/Platforms/PostgreSQLPlatformTest.php
+++ b/tests/Platforms/PostgreSQLPlatformTest.php
@@ -593,6 +593,44 @@ public function testDroppingConstraintsBeforeColumns(): void
         self::assertEquals($expectedSql, $sql);
     }
 
+    public function testDroppingPrimaryKey(): void
+    {
+        $oldTable = new Table('mytable');
+        $oldTable->addColumn('id', 'integer');
+        $oldTable->setPrimaryKey(['id']);
+
+        $newTable = clone $oldTable;
+        $newTable->dropPrimaryKey();
+
+        $diff = (new Comparator())->compareTables($oldTable, $newTable);
+
+        $sql = $this->platform->getAlterTableSQL($diff);
+
+        $expectedSql = ['ALTER TABLE mytable DROP CONSTRAINT mytable_pkey'];
+
+        self::assertEquals($expectedSql, $sql);
+    }
+
+    public function testDroppingPrimaryKeyWithUserDefinedName(): void
+    {
+        self::markTestSkipped('Edge case not covered yet');
+
+        $oldTable = new Table('mytable');
+        $oldTable->addColumn('id', 'integer');
+        $oldTable->setPrimaryKey(['id'], 'a_user_name');
+
+        $newTable = clone $oldTable;
+        $newTable->dropPrimaryKey();
+
+        $diff = (new Comparator())->compareTables($oldTable, $newTable);
+
+        $sql = $this->platform->getAlterTableSQL($diff);
+
+        $expectedSql = ['ALTER TABLE mytable DROP CONSTRAINT a_user_name'];
+
+        self::assertEquals($expectedSql, $sql);
+    }
+
     public function testUsesSequenceEmulatedIdentityColumns(): void
     {
         self::assertTrue($this->platform->usesSequenceEmulatedIdentityColumns());