diff --git a/CHANGELOG.md b/CHANGELOG.md
index 705dd80..42cc6fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## Draft Environment (Unreleased)
+
+- Trigger config update after version 3.6.0
+
 ## Draft Environment 3.6.0 (2022-07-07)
 
 - [GH-259](https://github.com/lemberg/draft-environment/pull/259) - Drop PHP7.3 and Composer 1 support; add support for 8.1; default to 8.0
diff --git a/src/Config/Config.php b/src/Config/Config.php
index 66bd713..6367f01 100644
--- a/src/Config/Config.php
+++ b/src/Config/Config.php
@@ -183,7 +183,7 @@ public function writeConfigToTheFile(string $source, string $target, array $conf
     $commentManager = new Comments();
     $commentManager->collect(explode("\n", $originalContent));
     $alteredWithComments = $commentManager->inject(explode("\n", $alteredContent));
-    $this->getFilesystem()->dumpFile($target, implode("\n", $alteredWithComments));
+    $this->getFilesystem()->dumpFile($target, implode("\n", $alteredWithComments) . "\n");
   }
 
 }
diff --git a/src/Config/Update/Step/DefaultConfigUpdate30600.php b/src/Config/Update/Step/DefaultConfigUpdate30600.php
new file mode 100644
index 0000000..ccf4600
--- /dev/null
+++ b/src/Config/Update/Step/DefaultConfigUpdate30600.php
@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Lemberg\Draft\Environment\Config\Update\Step;
+
+use Lemberg\Draft\Environment\Config\Update\UpdateStepInterface;
+
+/**
+ * Cleanup project for the 3.6.0.
+ */
+final class DefaultConfigUpdate30600 extends AbstractUpdateStep implements UpdateStepInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getWeight(): int {
+    return 13;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function update(array &$config): void {
+    // Empty update will trigger updating configuration.
+  }
+
+}
diff --git a/tests/Unit/Config/ConfigTest.php b/tests/Unit/Config/ConfigTest.php
index 5fa6cda..96d7476 100644
--- a/tests/Unit/Config/ConfigTest.php
+++ b/tests/Unit/Config/ConfigTest.php
@@ -161,7 +161,7 @@ public function writeConfigToTheFileDataProvider(): array {
     return [
       [
         "# One\none:\n  # Two\n  two: two",
-        "# One\none:\n  # Two\n  two: 2",
+        "# One\none:\n  # Two\n  two: 2\n",
         [
           'one' => [
             'two' => 2,
@@ -170,14 +170,14 @@ public function writeConfigToTheFileDataProvider(): array {
       ],
       [
         "# One\none:\n  # Two\n  two: two",
-        "# One\none: one",
+        "# One\none: one\n",
         [
           'one' => 'one',
         ],
       ],
       [
         "# One\none:\n  # Two\n  two: two",
-        "# One\none:\n  # Two\n  two: two\nthree: 3",
+        "# One\none:\n  # Two\n  two: two\nthree: 3\n",
         [
           'one' => [
             'two' => 'two',
diff --git a/tests/Unit/Config/Update/Step/DefaultConfigUpdate30600Test.php b/tests/Unit/Config/Update/Step/DefaultConfigUpdate30600Test.php
new file mode 100644
index 0000000..4b310b1
--- /dev/null
+++ b/tests/Unit/Config/Update/Step/DefaultConfigUpdate30600Test.php
@@ -0,0 +1,121 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Lemberg\Tests\Unit\Draft\Environment\Config\Update\Step;
+
+use Composer\Autoload\ClassLoader;
+use Composer\Composer;
+use Composer\Config as ComposerConfig;
+use Composer\IO\IOInterface;
+use Lemberg\Draft\Environment\Config\Config;
+use Lemberg\Draft\Environment\Config\Manager\UpdateManager;
+use Lemberg\Draft\Environment\Config\Update\Step\DefaultConfigUpdate30600;
+use Lemberg\Draft\Environment\Utility\Filesystem;
+use org\bovigo\vfs\vfsStream;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Tests updating PHP configuration.
+ *
+ * @covers \Lemberg\Draft\Environment\Config\Update\Step\AbstractUpdateStep
+ * @covers \Lemberg\Draft\Environment\Config\Update\Step\DefaultConfigUpdate30600
+ */
+final class DefaultConfigUpdate30600Test extends TestCase {
+
+  /**
+   * @var \Composer\Composer
+   */
+  protected $composer;
+
+  /**
+   * @var \Composer\IO\IOInterface
+   */
+  protected $io;
+
+  /**
+   * @var string
+   */
+  protected $root;
+
+  /**
+   * @var \Lemberg\Draft\Environment\Config\Manager\UpdateManagerInterface
+   */
+  protected $configUpdateManager;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    $this->composer = new Composer();
+    $this->composer->setConfig(new ComposerConfig());
+    $this->io = $this->createMock(IOInterface::class);
+
+    // Mock source and target configuration directories.
+    $this->root = vfsStream::setup()->url();
+    $fs = new Filesystem();
+    $fs->mkdir(["$this->root/source", "$this->root/target"]);
+
+    $configObject = new Config("$this->root/source", "$this->root/target");
+    $classLoader = new ClassLoader();
+    $this->configUpdateManager = new UpdateManager($this->composer, $this->io, $configObject, $classLoader);
+  }
+
+  /**
+   * Tests step weight getter.
+   */
+  public function testGetWeight(): void {
+    $step = new DefaultConfigUpdate30600($this->composer, $this->io, $this->configUpdateManager);
+    self::assertSame(13, $step->getWeight());
+  }
+
+  /**
+   * Tests update step execution.
+   *
+   * @param array<string,mixed> $config
+   * @param array<string,mixed> $expectedConfig
+   *
+   * @dataProvider updateDataProvider
+   */
+  public function testUpdate(array $config, array $expectedConfig): void {
+    $step = new DefaultConfigUpdate30600($this->composer, $this->io, $this->configUpdateManager);
+
+    $step->update($config);
+    self::assertSame($expectedConfig, $config);
+  }
+
+  /**
+   * Data provider for the ::testUpdate().
+   *
+   * @return array<int,array<int,string|array<string,mixed>>>
+   */
+  public function updateDataProvider(): array {
+    return [
+      [
+        [],
+        [],
+      ],
+      [
+        [
+          'ansible' => [],
+          'virtualbox' => [],
+          'php_extensions_configuration' => [
+            'opcache' => [
+              'opcache.error_log' => '/var/log/draft/php_opcache_error.log',
+            ],
+          ],
+        ],
+        [
+          'ansible' => [],
+          'virtualbox' => [],
+          'php_extensions_configuration' => [
+            'opcache' => [
+              'opcache.error_log' => '/var/log/draft/php_opcache_error.log',
+            ],
+          ],
+        ],
+      ],
+    ];
+  }
+
+}
diff --git a/tests/Unit/Config/Update/Step/ExportAllAvailableConfigurationTest.php b/tests/Unit/Config/Update/Step/ExportAllAvailableConfigurationTest.php
index 05d3be5..d60d5d5 100644
--- a/tests/Unit/Config/Update/Step/ExportAllAvailableConfigurationTest.php
+++ b/tests/Unit/Config/Update/Step/ExportAllAvailableConfigurationTest.php
@@ -157,6 +157,7 @@ final public function updateDataProvider(): array {
   # Comment Z
   - z
 aa: 34
+
 EOT;
 
     $configA = [
@@ -252,6 +253,7 @@ final public function updateDataProvider(): array {
   bb:
     cc: dd
 new: new
+
 EOT;
 
     return [