diff --git a/Puc/v5/PucFactory.php b/Puc/v5/PucFactory.php
index c2e1243..a2ec2d2 100644
--- a/Puc/v5/PucFactory.php
+++ b/Puc/v5/PucFactory.php
@@ -4,7 +4,7 @@
 
 if ( !class_exists(PucFactory::class, false) ):
 
-	class PucFactory extends \YahnisElsts\PluginUpdateChecker\v5p2\PucFactory {
+	class PucFactory extends \YahnisElsts\PluginUpdateChecker\v5p3\PucFactory {
 	}
 
 endif;
diff --git a/Puc/v5p2/Autoloader.php b/Puc/v5p3/Autoloader.php
similarity index 98%
rename from Puc/v5p2/Autoloader.php
rename to Puc/v5p3/Autoloader.php
index 87e734d..5074ab2 100644
--- a/Puc/v5p2/Autoloader.php
+++ b/Puc/v5p3/Autoloader.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 if ( !class_exists(Autoloader::class, false) ):
 
diff --git a/Puc/v5p2/DebugBar/Extension.php b/Puc/v5p3/DebugBar/Extension.php
similarity index 97%
rename from Puc/v5p2/DebugBar/Extension.php
rename to Puc/v5p3/DebugBar/Extension.php
index 1caa55f..df4a493 100644
--- a/Puc/v5p2/DebugBar/Extension.php
+++ b/Puc/v5p3/DebugBar/Extension.php
@@ -1,8 +1,8 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\DebugBar;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\DebugBar;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\PucFactory;
-use YahnisElsts\PluginUpdateChecker\v5p2\UpdateChecker;
+use YahnisElsts\PluginUpdateChecker\v5p3\PucFactory;
+use YahnisElsts\PluginUpdateChecker\v5p3\UpdateChecker;
 
 if ( !class_exists(Extension::class, false) ):
 
diff --git a/Puc/v5p2/DebugBar/Panel.php b/Puc/v5p3/DebugBar/Panel.php
similarity index 97%
rename from Puc/v5p2/DebugBar/Panel.php
rename to Puc/v5p3/DebugBar/Panel.php
index 8ead440..795525c 100644
--- a/Puc/v5p2/DebugBar/Panel.php
+++ b/Puc/v5p3/DebugBar/Panel.php
@@ -1,7 +1,7 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\DebugBar;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\DebugBar;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\UpdateChecker;
+use YahnisElsts\PluginUpdateChecker\v5p3\UpdateChecker;
 
 if ( !class_exists(Panel::class, false) && class_exists('Debug_Bar_Panel', false) ):
 
diff --git a/Puc/v5p2/DebugBar/PluginExtension.php b/Puc/v5p3/DebugBar/PluginExtension.php
similarity index 90%
rename from Puc/v5p2/DebugBar/PluginExtension.php
rename to Puc/v5p3/DebugBar/PluginExtension.php
index 801e28f..b5546c7 100644
--- a/Puc/v5p2/DebugBar/PluginExtension.php
+++ b/Puc/v5p3/DebugBar/PluginExtension.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\DebugBar;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\DebugBar;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\Plugin\UpdateChecker;
+use YahnisElsts\PluginUpdateChecker\v5p3\Plugin\UpdateChecker;
 
 if ( !class_exists(PluginExtension::class, false) ):
 
diff --git a/Puc/v5p2/DebugBar/PluginPanel.php b/Puc/v5p3/DebugBar/PluginPanel.php
similarity index 87%
rename from Puc/v5p2/DebugBar/PluginPanel.php
rename to Puc/v5p3/DebugBar/PluginPanel.php
index c5d371a..d7e418d 100644
--- a/Puc/v5p2/DebugBar/PluginPanel.php
+++ b/Puc/v5p3/DebugBar/PluginPanel.php
@@ -1,7 +1,7 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\DebugBar;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\DebugBar;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\Plugin\UpdateChecker;
+use YahnisElsts\PluginUpdateChecker\v5p3\Plugin\UpdateChecker;
 
 if ( !class_exists(PluginPanel::class, false) ):
 
diff --git a/Puc/v5p2/DebugBar/ThemePanel.php b/Puc/v5p3/DebugBar/ThemePanel.php
similarity index 79%
rename from Puc/v5p2/DebugBar/ThemePanel.php
rename to Puc/v5p3/DebugBar/ThemePanel.php
index 7452860..3183ead 100644
--- a/Puc/v5p2/DebugBar/ThemePanel.php
+++ b/Puc/v5p3/DebugBar/ThemePanel.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\DebugBar;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\DebugBar;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\Theme\UpdateChecker;
+use YahnisElsts\PluginUpdateChecker\v5p3\Theme\UpdateChecker;
 
 if ( !class_exists(ThemePanel::class, false) ):
 
diff --git a/Puc/v5p2/InstalledPackage.php b/Puc/v5p3/InstalledPackage.php
similarity index 98%
rename from Puc/v5p2/InstalledPackage.php
rename to Puc/v5p3/InstalledPackage.php
index 66bdad9..06a5d21 100644
--- a/Puc/v5p2/InstalledPackage.php
+++ b/Puc/v5p3/InstalledPackage.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 if ( !class_exists(InstalledPackage::class, false) ):
 
diff --git a/Puc/v5p2/Metadata.php b/Puc/v5p3/Metadata.php
similarity index 98%
rename from Puc/v5p2/Metadata.php
rename to Puc/v5p3/Metadata.php
index 14fce5f..f368f88 100644
--- a/Puc/v5p2/Metadata.php
+++ b/Puc/v5p3/Metadata.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 use LogicException;
 use stdClass;
diff --git a/Puc/v5p2/OAuthSignature.php b/Puc/v5p3/OAuthSignature.php
similarity index 98%
rename from Puc/v5p2/OAuthSignature.php
rename to Puc/v5p3/OAuthSignature.php
index b92eb15..be9ad9e 100644
--- a/Puc/v5p2/OAuthSignature.php
+++ b/Puc/v5p3/OAuthSignature.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 if ( !class_exists(OAuthSignature::class, false) ):
 
diff --git a/Puc/v5p2/Plugin/Package.php b/Puc/v5p3/Plugin/Package.php
similarity index 96%
rename from Puc/v5p2/Plugin/Package.php
rename to Puc/v5p3/Plugin/Package.php
index 5156591..6b19bb3 100644
--- a/Puc/v5p2/Plugin/Package.php
+++ b/Puc/v5p3/Plugin/Package.php
@@ -1,8 +1,8 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Plugin;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Plugin;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\InstalledPackage;
-use YahnisElsts\PluginUpdateChecker\v5p2\PucFactory;
+use YahnisElsts\PluginUpdateChecker\v5p3\InstalledPackage;
+use YahnisElsts\PluginUpdateChecker\v5p3\PucFactory;
 
 if ( !class_exists(Package::class, false) ):
 
diff --git a/Puc/v5p2/Plugin/PluginInfo.php b/Puc/v5p3/Plugin/PluginInfo.php
similarity index 97%
rename from Puc/v5p2/Plugin/PluginInfo.php
rename to Puc/v5p3/Plugin/PluginInfo.php
index 433db9b..69978a6 100644
--- a/Puc/v5p2/Plugin/PluginInfo.php
+++ b/Puc/v5p3/Plugin/PluginInfo.php
@@ -1,7 +1,7 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Plugin;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Plugin;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\Metadata;
+use YahnisElsts\PluginUpdateChecker\v5p3\Metadata;
 
 if ( !class_exists(PluginInfo::class, false) ):
 
diff --git a/Puc/v5p2/Plugin/Ui.php b/Puc/v5p3/Plugin/Ui.php
similarity index 99%
rename from Puc/v5p2/Plugin/Ui.php
rename to Puc/v5p3/Plugin/Ui.php
index 79033bf..d300a5e 100644
--- a/Puc/v5p2/Plugin/Ui.php
+++ b/Puc/v5p3/Plugin/Ui.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Plugin;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Plugin;
 
 if ( !class_exists('Ui', false) ):
 	/**
diff --git a/Puc/v5p2/Plugin/Update.php b/Puc/v5p3/Plugin/Update.php
similarity index 96%
rename from Puc/v5p2/Plugin/Update.php
rename to Puc/v5p3/Plugin/Update.php
index 178f215..cec09cf 100644
--- a/Puc/v5p2/Plugin/Update.php
+++ b/Puc/v5p3/Plugin/Update.php
@@ -1,7 +1,7 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Plugin;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Plugin;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\Update as BaseUpdate;
+use YahnisElsts\PluginUpdateChecker\v5p3\Update as BaseUpdate;
 
 if ( !class_exists(Update::class, false) ):
 
diff --git a/Puc/v5p2/Plugin/UpdateChecker.php b/Puc/v5p3/Plugin/UpdateChecker.php
similarity index 97%
rename from Puc/v5p2/Plugin/UpdateChecker.php
rename to Puc/v5p3/Plugin/UpdateChecker.php
index afc3194..2f07fa3 100644
--- a/Puc/v5p2/Plugin/UpdateChecker.php
+++ b/Puc/v5p3/Plugin/UpdateChecker.php
@@ -1,10 +1,10 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Plugin;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Plugin;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\InstalledPackage;
-use YahnisElsts\PluginUpdateChecker\v5p2\UpdateChecker as BaseUpdateChecker;
-use YahnisElsts\PluginUpdateChecker\v5p2\Scheduler;
-use YahnisElsts\PluginUpdateChecker\v5p2\DebugBar;
+use YahnisElsts\PluginUpdateChecker\v5p3\InstalledPackage;
+use YahnisElsts\PluginUpdateChecker\v5p3\UpdateChecker as BaseUpdateChecker;
+use YahnisElsts\PluginUpdateChecker\v5p3\Scheduler;
+use YahnisElsts\PluginUpdateChecker\v5p3\DebugBar;
 
 if ( !class_exists(UpdateChecker::class, false) ):
 
diff --git a/Puc/v5p2/PucFactory.php b/Puc/v5p3/PucFactory.php
similarity index 97%
rename from Puc/v5p2/PucFactory.php
rename to Puc/v5p3/PucFactory.php
index d370ad6..2063277 100644
--- a/Puc/v5p2/PucFactory.php
+++ b/Puc/v5p3/PucFactory.php
@@ -1,10 +1,10 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\Plugin;
-use YahnisElsts\PluginUpdateChecker\v5p2\Theme;
-use YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+use YahnisElsts\PluginUpdateChecker\v5p3\Plugin;
+use YahnisElsts\PluginUpdateChecker\v5p3\Theme;
+use YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
 if ( !class_exists(PucFactory::class, false) ):
 
@@ -147,7 +147,7 @@ public static function buildUpdateChecker($metadataUrl, $fullPath, $slug = '', $
 		 *
 		 * Normalize a filesystem path. Introduced in WP 3.9.
 		 * Copying here allows use of the class on earlier versions.
-		 * This version adapted from WP 4.8.2 (unchanged since 4.5.2)
+		 * This version adapted from WP 4.8.2 (unchanged since 4.5.3)
 		 *
 		 * @param string $path Path to normalize.
 		 * @return string Normalized path.
diff --git a/Puc/v5p2/Scheduler.php b/Puc/v5p3/Scheduler.php
similarity index 99%
rename from Puc/v5p2/Scheduler.php
rename to Puc/v5p3/Scheduler.php
index e4fba19..98f2e93 100644
--- a/Puc/v5p2/Scheduler.php
+++ b/Puc/v5p3/Scheduler.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 if ( !class_exists(Scheduler::class, false) ):
 
diff --git a/Puc/v5p2/StateStore.php b/Puc/v5p3/StateStore.php
similarity index 98%
rename from Puc/v5p2/StateStore.php
rename to Puc/v5p3/StateStore.php
index 0228195..f182787 100644
--- a/Puc/v5p2/StateStore.php
+++ b/Puc/v5p3/StateStore.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 if ( !class_exists(StateStore::class, false) ):
 
diff --git a/Puc/v5p2/Theme/Package.php b/Puc/v5p3/Theme/Package.php
similarity index 93%
rename from Puc/v5p2/Theme/Package.php
rename to Puc/v5p3/Theme/Package.php
index 36d1711..8a83f66 100644
--- a/Puc/v5p2/Theme/Package.php
+++ b/Puc/v5p3/Theme/Package.php
@@ -1,7 +1,7 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Theme;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Theme;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\InstalledPackage;
+use YahnisElsts\PluginUpdateChecker\v5p3\InstalledPackage;
 
 if ( !class_exists(Package::class, false) ):
 
diff --git a/Puc/v5p2/Theme/Update.php b/Puc/v5p3/Theme/Update.php
similarity index 94%
rename from Puc/v5p2/Theme/Update.php
rename to Puc/v5p3/Theme/Update.php
index 1e60f30..3c9dc9e 100644
--- a/Puc/v5p2/Theme/Update.php
+++ b/Puc/v5p3/Theme/Update.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Theme;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Theme;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\Update as BaseUpdate;
+use YahnisElsts\PluginUpdateChecker\v5p3\Update as BaseUpdate;
 
 if ( !class_exists(Update::class, false) ):
 
diff --git a/Puc/v5p2/Theme/UpdateChecker.php b/Puc/v5p3/Theme/UpdateChecker.php
similarity index 94%
rename from Puc/v5p2/Theme/UpdateChecker.php
rename to Puc/v5p3/Theme/UpdateChecker.php
index 66c5348..92f960f 100644
--- a/Puc/v5p2/Theme/UpdateChecker.php
+++ b/Puc/v5p3/Theme/UpdateChecker.php
@@ -1,11 +1,11 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Theme;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Theme;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\UpdateChecker as BaseUpdateChecker;
-use YahnisElsts\PluginUpdateChecker\v5p2\InstalledPackage;
-use YahnisElsts\PluginUpdateChecker\v5p2\Scheduler;
-use YahnisElsts\PluginUpdateChecker\v5p2\DebugBar;
+use YahnisElsts\PluginUpdateChecker\v5p3\UpdateChecker as BaseUpdateChecker;
+use YahnisElsts\PluginUpdateChecker\v5p3\InstalledPackage;
+use YahnisElsts\PluginUpdateChecker\v5p3\Scheduler;
+use YahnisElsts\PluginUpdateChecker\v5p3\DebugBar;
 
 if ( !class_exists(UpdateChecker::class, false) ):
 
diff --git a/Puc/v5p2/Update.php b/Puc/v5p3/Update.php
similarity index 93%
rename from Puc/v5p2/Update.php
rename to Puc/v5p3/Update.php
index 8f5de5d..994e54d 100644
--- a/Puc/v5p2/Update.php
+++ b/Puc/v5p3/Update.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 use stdClass;
 
diff --git a/Puc/v5p2/UpdateChecker.php b/Puc/v5p3/UpdateChecker.php
similarity index 99%
rename from Puc/v5p2/UpdateChecker.php
rename to Puc/v5p3/UpdateChecker.php
index d97048e..c14be03 100644
--- a/Puc/v5p2/UpdateChecker.php
+++ b/Puc/v5p3/UpdateChecker.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 use stdClass;
 use WP_Error;
diff --git a/Puc/v5p2/UpgraderStatus.php b/Puc/v5p3/UpgraderStatus.php
similarity index 99%
rename from Puc/v5p2/UpgraderStatus.php
rename to Puc/v5p3/UpgraderStatus.php
index b65303d..81b1f4c 100644
--- a/Puc/v5p2/UpgraderStatus.php
+++ b/Puc/v5p3/UpgraderStatus.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 if ( !class_exists(UpgraderStatus::class, false) ):
 
diff --git a/Puc/v5p2/Utils.php b/Puc/v5p3/Utils.php
similarity index 97%
rename from Puc/v5p2/Utils.php
rename to Puc/v5p3/Utils.php
index eeda33d..ddacf3f 100644
--- a/Puc/v5p2/Utils.php
+++ b/Puc/v5p3/Utils.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 if ( !class_exists(Utils::class, false) ):
 
diff --git a/Puc/v5p2/Vcs/Api.php b/Puc/v5p3/Vcs/Api.php
similarity index 99%
rename from Puc/v5p2/Vcs/Api.php
rename to Puc/v5p3/Vcs/Api.php
index 1a5f4fd..ec808c1 100644
--- a/Puc/v5p2/Vcs/Api.php
+++ b/Puc/v5p3/Vcs/Api.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
 use Parsedown;
 use PucReadmeParser;
diff --git a/Puc/v5p2/Vcs/BaseChecker.php b/Puc/v5p3/Vcs/BaseChecker.php
similarity index 90%
rename from Puc/v5p2/Vcs/BaseChecker.php
rename to Puc/v5p3/Vcs/BaseChecker.php
index 013e8f3..d6e3f0b 100644
--- a/Puc/v5p2/Vcs/BaseChecker.php
+++ b/Puc/v5p3/Vcs/BaseChecker.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
 if ( !interface_exists(BaseChecker::class, false) ):
 
diff --git a/Puc/v5p2/Vcs/BitBucketApi.php b/Puc/v5p3/Vcs/BitBucketApi.php
similarity index 97%
rename from Puc/v5p2/Vcs/BitBucketApi.php
rename to Puc/v5p3/Vcs/BitBucketApi.php
index dc60de0..e7ed0c5 100644
--- a/Puc/v5p2/Vcs/BitBucketApi.php
+++ b/Puc/v5p3/Vcs/BitBucketApi.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\OAuthSignature;
-use YahnisElsts\PluginUpdateChecker\v5p2\Utils;
+use YahnisElsts\PluginUpdateChecker\v5p3\OAuthSignature;
+use YahnisElsts\PluginUpdateChecker\v5p3\Utils;
 
 if ( !class_exists(BitBucketApi::class, false) ):
 
diff --git a/Puc/v5p2/Vcs/GitHubApi.php b/Puc/v5p3/Vcs/GitHubApi.php
similarity index 99%
rename from Puc/v5p2/Vcs/GitHubApi.php
rename to Puc/v5p3/Vcs/GitHubApi.php
index 590072d..4858ab0 100644
--- a/Puc/v5p2/Vcs/GitHubApi.php
+++ b/Puc/v5p3/Vcs/GitHubApi.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
 use Parsedown;
 
diff --git a/Puc/v5p2/Vcs/GitLabApi.php b/Puc/v5p3/Vcs/GitLabApi.php
similarity index 99%
rename from Puc/v5p2/Vcs/GitLabApi.php
rename to Puc/v5p3/Vcs/GitLabApi.php
index a4944c1..ee07149 100644
--- a/Puc/v5p2/Vcs/GitLabApi.php
+++ b/Puc/v5p3/Vcs/GitLabApi.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
 if ( !class_exists(GitLabApi::class, false) ):
 
diff --git a/Puc/v5p2/Vcs/PluginUpdateChecker.php b/Puc/v5p3/Vcs/PluginUpdateChecker.php
similarity index 98%
rename from Puc/v5p2/Vcs/PluginUpdateChecker.php
rename to Puc/v5p3/Vcs/PluginUpdateChecker.php
index 58871cd..e9aee45 100644
--- a/Puc/v5p2/Vcs/PluginUpdateChecker.php
+++ b/Puc/v5p3/Vcs/PluginUpdateChecker.php
@@ -1,8 +1,8 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\Plugin;
+use YahnisElsts\PluginUpdateChecker\v5p3\Plugin;
 
 if ( !class_exists(PluginUpdateChecker::class, false) ):
 
diff --git a/Puc/v5p2/Vcs/Reference.php b/Puc/v5p3/Vcs/Reference.php
similarity index 95%
rename from Puc/v5p2/Vcs/Reference.php
rename to Puc/v5p3/Vcs/Reference.php
index 3b00942..7f6988a 100644
--- a/Puc/v5p2/Vcs/Reference.php
+++ b/Puc/v5p3/Vcs/Reference.php
@@ -1,5 +1,5 @@
 <?php
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
 if ( !class_exists(Reference::class, false) ):
 
diff --git a/Puc/v5p2/Vcs/ReleaseAssetSupport.php b/Puc/v5p3/Vcs/ReleaseAssetSupport.php
similarity index 97%
rename from Puc/v5p2/Vcs/ReleaseAssetSupport.php
rename to Puc/v5p3/Vcs/ReleaseAssetSupport.php
index ab715e0..c5bd2da 100644
--- a/Puc/v5p2/Vcs/ReleaseAssetSupport.php
+++ b/Puc/v5p3/Vcs/ReleaseAssetSupport.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
 if ( !trait_exists(ReleaseAssetSupport::class, false) ) :
 
diff --git a/Puc/v5p2/Vcs/ReleaseFilteringFeature.php b/Puc/v5p3/Vcs/ReleaseFilteringFeature.php
similarity index 98%
rename from Puc/v5p2/Vcs/ReleaseFilteringFeature.php
rename to Puc/v5p3/Vcs/ReleaseFilteringFeature.php
index 091b1ec..bf372cd 100644
--- a/Puc/v5p2/Vcs/ReleaseFilteringFeature.php
+++ b/Puc/v5p3/Vcs/ReleaseFilteringFeature.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
 if ( !trait_exists(ReleaseFilteringFeature::class, false) ) :
 
diff --git a/Puc/v5p2/Vcs/ThemeUpdateChecker.php b/Puc/v5p3/Vcs/ThemeUpdateChecker.php
similarity index 94%
rename from Puc/v5p2/Vcs/ThemeUpdateChecker.php
rename to Puc/v5p3/Vcs/ThemeUpdateChecker.php
index 16c2da4..04f6036 100644
--- a/Puc/v5p2/Vcs/ThemeUpdateChecker.php
+++ b/Puc/v5p3/Vcs/ThemeUpdateChecker.php
@@ -1,9 +1,9 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
-use YahnisElsts\PluginUpdateChecker\v5p2\Theme;
-use YahnisElsts\PluginUpdateChecker\v5p2\Utils;
+use YahnisElsts\PluginUpdateChecker\v5p3\Theme;
+use YahnisElsts\PluginUpdateChecker\v5p3\Utils;
 
 if ( !class_exists(ThemeUpdateChecker::class, false) ):
 
diff --git a/Puc/v5p2/Vcs/VcsCheckerMethods.php b/Puc/v5p3/Vcs/VcsCheckerMethods.php
similarity index 95%
rename from Puc/v5p2/Vcs/VcsCheckerMethods.php
rename to Puc/v5p3/Vcs/VcsCheckerMethods.php
index 28b406d..5b89cf6 100644
--- a/Puc/v5p2/Vcs/VcsCheckerMethods.php
+++ b/Puc/v5p3/Vcs/VcsCheckerMethods.php
@@ -1,6 +1,6 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2\Vcs;
+namespace YahnisElsts\PluginUpdateChecker\v5p3\Vcs;
 
 if ( !trait_exists(VcsCheckerMethods::class, false) ) :
 
diff --git a/README.md b/README.md
index 95db303..1af16f0 100644
--- a/README.md
+++ b/README.md
@@ -252,8 +252,8 @@ BitBucket doesn't have an equivalent to GitHub's releases, so the process is sli
 
 	Alternatively, if you're using a self-hosted GitLab instance, initialize the update checker like this:
 	```php
-	use YahnisElsts\PluginUpdateChecker\v5p2\Vcs\PluginUpdateChecker;
-	use YahnisElsts\PluginUpdateChecker\v5p2\Vcs\GitLabApi;
+	use YahnisElsts\PluginUpdateChecker\v5p3\Vcs\PluginUpdateChecker;
+	use YahnisElsts\PluginUpdateChecker\v5p3\Vcs\GitLabApi;
 	
 	$myUpdateChecker = new PluginUpdateChecker(
 		new GitLabApi('https://myserver.com/user-name/repo-name/'),
@@ -264,8 +264,8 @@ BitBucket doesn't have an equivalent to GitHub's releases, so the process is sli
 	```
 	If you're using a self-hosted GitLab instance and [subgroups or nested groups](https://docs.gitlab.com/ce/user/group/subgroups/index.html), you have to tell the update checker which parts of the URL are subgroups:
 	```php
-	use YahnisElsts\PluginUpdateChecker\v5p2\Vcs\PluginUpdateChecker;
-	use YahnisElsts\PluginUpdateChecker\v5p2\Vcs\GitLabApi;
+	use YahnisElsts\PluginUpdateChecker\v5p3\Vcs\PluginUpdateChecker;
+	use YahnisElsts\PluginUpdateChecker\v5p3\Vcs\GitLabApi;
    
 	$myUpdateChecker = new PluginUpdateChecker(
 		new GitLabApi(
@@ -347,14 +347,14 @@ Other classes have also been renamed, usually by simply removing the `Puc_vXpY_`
 | Old class name                      | New class name                                                 |
 |-------------------------------------|----------------------------------------------------------------|
 | `Puc_v4_Factory`                    | `YahnisElsts\PluginUpdateChecker\v5\PucFactory`                |
-| `Puc_v4p13_Factory`                 | `YahnisElsts\PluginUpdateChecker\v5p2\PucFactory`              |
-| `Puc_v4p13_Plugin_UpdateChecker`    | `YahnisElsts\PluginUpdateChecker\v5p2\Plugin\UpdateChecker`    |
-| `Puc_v4p13_Theme_UpdateChecker`     | `YahnisElsts\PluginUpdateChecker\v5p2\Theme\UpdateChecker`     |
-| `Puc_v4p13_Vcs_PluginUpdateChecker` | `YahnisElsts\PluginUpdateChecker\v5p2\Vcs\PluginUpdateChecker` |
-| `Puc_v4p13_Vcs_ThemeUpdateChecker`  | `YahnisElsts\PluginUpdateChecker\v5p2\Vcs\ThemeUpdateChecker`  |
-| `Puc_v4p13_Vcs_GitHubApi`           | `YahnisElsts\PluginUpdateChecker\v5p2\Vcs\GitHubApi`           |
-| `Puc_v4p13_Vcs_GitLabApi`           | `YahnisElsts\PluginUpdateChecker\v5p2\Vcs\GitLabApi`           |
-| `Puc_v4p13_Vcs_BitBucketApi`        | `YahnisElsts\PluginUpdateChecker\v5p2\Vcs\BitBucketApi`        |
+| `Puc_v4p13_Factory`                 | `YahnisElsts\PluginUpdateChecker\v5p3\PucFactory`              |
+| `Puc_v4p13_Plugin_UpdateChecker`    | `YahnisElsts\PluginUpdateChecker\v5p3\Plugin\UpdateChecker`    |
+| `Puc_v4p13_Theme_UpdateChecker`     | `YahnisElsts\PluginUpdateChecker\v5p3\Theme\UpdateChecker`     |
+| `Puc_v4p13_Vcs_PluginUpdateChecker` | `YahnisElsts\PluginUpdateChecker\v5p3\Vcs\PluginUpdateChecker` |
+| `Puc_v4p13_Vcs_ThemeUpdateChecker`  | `YahnisElsts\PluginUpdateChecker\v5p3\Vcs\ThemeUpdateChecker`  |
+| `Puc_v4p13_Vcs_GitHubApi`           | `YahnisElsts\PluginUpdateChecker\v5p3\Vcs\GitHubApi`           |
+| `Puc_v4p13_Vcs_GitLabApi`           | `YahnisElsts\PluginUpdateChecker\v5p3\Vcs\GitLabApi`           |
+| `Puc_v4p13_Vcs_BitBucketApi`        | `YahnisElsts\PluginUpdateChecker\v5p3\Vcs\BitBucketApi`        |
 
 License Management
 ------------------
diff --git a/composer.json b/composer.json
index d84151d..27b65b0 100644
--- a/composer.json
+++ b/composer.json
@@ -18,6 +18,6 @@
 		"ext-json": "*"
 	},
 	"autoload": {
-		"files": ["load-v5p2.php"]
+		"files": ["load-v5p3.php"]
 	}
 }
diff --git a/languages/plugin-update-checker.pot b/languages/plugin-update-checker.pot
index 3610299..4985307 100644
--- a/languages/plugin-update-checker.pot
+++ b/languages/plugin-update-checker.pot
@@ -17,33 +17,33 @@ msgstr ""
 "X-Poedit-KeywordsList: __;_e;_x:1,2c;_x\n"
 "X-Poedit-SearchPath-0: .\n"
 
-#: Puc/v5p2/Plugin/Ui.php:128
+#: Puc/v5p3/Plugin/Ui.php:128
 msgid "Check for updates"
 msgstr ""
 
-#: Puc/v5p2/Plugin/Ui.php:214
+#: Puc/v5p3/Plugin/Ui.php:214
 #, php-format
 msgctxt "the plugin title"
 msgid "The %s plugin is up to date."
 msgstr ""
 
-#: Puc/v5p2/Plugin/Ui.php:216
+#: Puc/v5p3/Plugin/Ui.php:216
 #, php-format
 msgctxt "the plugin title"
 msgid "A new version of the %s plugin is available."
 msgstr ""
 
-#: Puc/v5p2/Plugin/Ui.php:218
+#: Puc/v5p3/Plugin/Ui.php:218
 #, php-format
 msgctxt "the plugin title"
 msgid "Could not determine if updates are available for %s."
 msgstr ""
 
-#: Puc/v5p2/Plugin/Ui.php:224
+#: Puc/v5p3/Plugin/Ui.php:224
 #, php-format
 msgid "Unknown update checker status \"%s\""
 msgstr ""
 
-#: Puc/v5p2/Vcs/PluginUpdateChecker.php:100
+#: Puc/v5p3/Vcs/PluginUpdateChecker.php:100
 msgid "There is no changelog available."
 msgstr ""
diff --git a/load-v5p2.php b/load-v5p3.php
similarity index 80%
rename from load-v5p2.php
rename to load-v5p3.php
index c91f422..1de3d58 100644
--- a/load-v5p2.php
+++ b/load-v5p3.php
@@ -1,14 +1,14 @@
 <?php
 
-namespace YahnisElsts\PluginUpdateChecker\v5p2;
+namespace YahnisElsts\PluginUpdateChecker\v5p3;
 
 use YahnisElsts\PluginUpdateChecker\v5\PucFactory as MajorFactory;
-use YahnisElsts\PluginUpdateChecker\v5p2\PucFactory as MinorFactory;
+use YahnisElsts\PluginUpdateChecker\v5p3\PucFactory as MinorFactory;
 
-require __DIR__ . '/Puc/v5p2/Autoloader.php';
+require __DIR__ . '/Puc/v5p3/Autoloader.php';
 new Autoloader();
 
-require __DIR__ . '/Puc/v5p2/PucFactory.php';
+require __DIR__ . '/Puc/v5p3/PucFactory.php';
 require __DIR__ . '/Puc/v5/PucFactory.php';
 
 //Register classes defined in this version with the factory.
@@ -26,9 +26,9 @@
 	)
 	as $pucGeneralClass => $pucVersionedClass
 ) {
-	MajorFactory::addVersion($pucGeneralClass, $pucVersionedClass, '5.2');
+	MajorFactory::addVersion($pucGeneralClass, $pucVersionedClass, '5.3');
 	//Also add it to the minor-version factory in case the major-version factory
 	//was already defined by another, older version of the update checker.
-	MinorFactory::addVersion($pucGeneralClass, $pucVersionedClass, '5.2');
+	MinorFactory::addVersion($pucGeneralClass, $pucVersionedClass, '5.3');
 }
 
diff --git a/plugin-update-checker.php b/plugin-update-checker.php
index 98f3af8..7a9268c 100644
--- a/plugin-update-checker.php
+++ b/plugin-update-checker.php
@@ -1,10 +1,10 @@
 <?php
 /**
- * Plugin Update Checker Library 5.2
+ * Plugin Update Checker Library 5.3
  * http://w-shadow.com/
  *
  * Copyright 2022 Janis Elsts
  * Released under the MIT license. See license.txt for details.
  */
 
-require dirname(__FILE__) . '/load-v5p2.php';
\ No newline at end of file
+require dirname(__FILE__) . '/load-v5p3.php';
\ No newline at end of file