diff --git a/reference/curl/constants.xml b/reference/curl/constants.xml
index 0c782b933476..0dc90276fca2 100644
--- a/reference/curl/constants.xml
+++ b/reference/curl/constants.xml
@@ -1374,6 +1374,28 @@
+
+
+ CURL_HTTP_VERSION_3
+ (int)
+
+
+
+ Available as of PHP 8.4.0 and cURL 7.66.0.
+
+
+
+
+
+ CURL_HTTP_VERSION_3ONLY
+ (int)
+
+
+
+ Available as of PHP 8.4.0 and cURL 7.88.0.
+
+
+
CURL_HTTP_VERSION_NONE