diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5405513ad..5a48af7ba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,12 @@
+### [2.5.5] 2023-03-21
+
+  * Fixed basic auth failures resulting in infinite retry loop (#11320)
+  * Fixed GitHub rate limit reporting (#11366)
+  * Fixed InstalledVersions error in Composer 1 compatibility edge case (#11304)
+  * Fixed issue displaying solver problems with branch names containing `%` signs (#11359)
+  * Fixed race condition in cache validity detection when running Composer highly concurrently (#11375)
+  * Fixed various minor config command issues (#11353, #11302)
+
 ### [2.5.4] 2023-02-15
 
   * Fixed extra.plugin-optional support in PluginInstaller when doing pre-install checks (#11318)
@@ -1699,6 +1708,7 @@
 
   * Initial release
 
+[2.5.5]: https://github.com/composer/composer/compare/2.5.4...2.5.5
 [2.5.4]: https://github.com/composer/composer/compare/2.5.3...2.5.4
 [2.5.3]: https://github.com/composer/composer/compare/2.5.2...2.5.3
 [2.5.2]: https://github.com/composer/composer/compare/2.5.1...2.5.2
diff --git a/src/Composer/Command/ConfigCommand.php b/src/Composer/Command/ConfigCommand.php
index d7f4ad78a..bef163b3d 100644
--- a/src/Composer/Command/ConfigCommand.php
+++ b/src/Composer/Command/ConfigCommand.php
@@ -274,8 +274,21 @@ EOT
         // show the value if no value is provided
         if ([] === $input->getArgument('setting-value') && !$input->getOption('unset')) {
             $properties = self::CONFIGURABLE_PACKAGE_PROPERTIES;
+            $propertiesDefaults = [
+                'type' => 'library',
+                'description' => '',
+                'homepage' => '',
+                'minimum-stability' => 'stable',
+                'prefer-stable' => false,
+                'keywords' => [],
+                'license' => [],
+                'suggest' => [],
+                'extra' => [],
+            ];
             $rawData = $this->configFile->read();
             $data = $this->config->all();
+            $source = $this->config->getSourceOfValue($settingKey);
+
             if (Preg::isMatch('/^repos?(?:itories)?(?:\.(.+))?/', $settingKey, $matches)) {
                 if (!isset($matches[1]) || $matches[1] === '') {
                     $value = $data['repositories'] ?? [];
@@ -311,19 +324,33 @@ EOT
                 $value = $data;
             } elseif (isset($data['config'][$settingKey])) {
                 $value = $this->config->get($settingKey, $input->getOption('absolute') ? 0 : Config::RELATIVE_PATHS);
+                // ensure we get {} output for properties which are objects
+                if ($value === []) {
+                    $schema = JsonFile::parseJson((string) file_get_contents(JsonFile::COMPOSER_SCHEMA_PATH));
+                    if (
+                        isset($schema['properties']['config']['properties'][$settingKey]['type'])
+                        && in_array('object', (array) $schema['properties']['config']['properties'][$settingKey]['type'], true)
+                    ) {
+                        $value = new \stdClass;
+                    }
+                }
             } elseif (isset($rawData[$settingKey]) && in_array($settingKey, $properties, true)) {
                 $value = $rawData[$settingKey];
+                $source = $this->configFile->getPath();
+            } elseif (isset($propertiesDefaults[$settingKey])) {
+                $value = $propertiesDefaults[$settingKey];
+                $source = 'defaults';
             } else {
                 throw new \RuntimeException($settingKey.' is not defined');
             }
 
-            if (is_array($value)) {
+            if (is_array($value) || is_object($value) || is_bool($value)) {
                 $value = JsonFile::encode($value, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE);
             }
 
             $sourceOfConfigValue = '';
             if ($input->getOption('source')) {
-                $sourceOfConfigValue = ' (' . $this->config->getSourceOfValue($settingKey) . ')';
+                $sourceOfConfigValue = ' (' . $source . ')';
             }
 
             $this->getIO()->write($value . $sourceOfConfigValue, true, IOInterface::QUIET);
diff --git a/src/Composer/PHPStan/ConfigReturnTypeExtension.php b/src/Composer/PHPStan/ConfigReturnTypeExtension.php
index b28d3ebd2..e7ff6e52e 100644
--- a/src/Composer/PHPStan/ConfigReturnTypeExtension.php
+++ b/src/Composer/PHPStan/ConfigReturnTypeExtension.php
@@ -40,7 +40,7 @@ final class ConfigReturnTypeExtension implements DynamicMethodReturnTypeExtensio
 
     public function __construct()
     {
-        $schema = JsonFile::parseJson((string) file_get_contents(__DIR__.'/../../../res/composer-schema.json'));
+        $schema = JsonFile::parseJson((string) file_get_contents(JsonFile::COMPOSER_SCHEMA_PATH));
         /**
          * @var string $prop
          */
diff --git a/tests/Composer/Test/Json/ComposerSchemaTest.php b/tests/Composer/Test/Json/ComposerSchemaTest.php
index c964a170c..9a6735091 100644
--- a/tests/Composer/Test/Json/ComposerSchemaTest.php
+++ b/tests/Composer/Test/Json/ComposerSchemaTest.php
@@ -12,6 +12,7 @@
 
 namespace Composer\Test\Json;
 
+use Composer\Json\JsonFile;
 use JsonSchema\Validator;
 use Composer\Test\TestCase;
 
@@ -96,7 +97,7 @@ class ComposerSchemaTest extends TestCase
     private function check(string $json)
     {
         $validator = new Validator();
-        $validator->check(json_decode($json), (object) ['$ref' => 'file://' . __DIR__ . '/../../../../res/composer-schema.json']);
+        $validator->check(json_decode($json), (object) ['$ref' => 'file://' . JsonFile::COMPOSER_SCHEMA_PATH]);
 
         if (!$validator->isValid()) {
             $errors = $validator->getErrors();