diff --git a/cli/updates_xml_build.php b/cli/updates_xml_build.php
index 025945c..e5c88bc 100644
--- a/cli/updates_xml_build.php
+++ b/cli/updates_xml_build.php
@@ -339,6 +339,8 @@ if (file_exists($dest)) {
 		for ($i = 0; $i <= $stabilityIndex; $i++) {
 			$writtenChannels[] = $stabilityTagMap[$allChannels[$i]] ?? $allChannels[$i];
 		}
+		// Also match legacy/alternate tag names (e.g. 'development' = 'dev')
+		$writtenChannels[] = 'development'; // alias for 'dev'
 
 		foreach ($existingXml->update as $existingUpdate) {
 			$existingTag = '';