diff --git a/ext/session/session.c b/ext/session/session.c
index 884132d885a23..a7a253d8bff41 100644
--- a/ext/session/session.c
+++ b/ext/session/session.c
@@ -54,6 +54,8 @@
 #include "mod_mm.h"
 #endif
 
+#include "zend_attributes.h"
+
 PHPAPI ZEND_DECLARE_MODULE_GLOBALS(ps)
 
 static zend_result php_session_rfc1867_callback(unsigned int event, void *event_data, void **extra);
@@ -1502,6 +1504,8 @@ PHPAPI zend_result php_session_reset_id(void)
 	/* zend_hash_str_del(EG(zend_constants), ZEND_STRL("sid")); */
 	sid = zend_get_constant_str(ZEND_STRL("SID"));
 
+	zend_constant *new_sid_constant = NULL;
+
 	if (PS(define_sid)) {
 		smart_str var = {0};
 
@@ -1513,7 +1517,7 @@ PHPAPI zend_result php_session_reset_id(void)
 			zval_ptr_dtor(sid);
 			ZVAL_STR(sid, smart_str_extract(&var));
 		} else {
-			REGISTER_STRINGL_CONSTANT("SID", ZSTR_VAL(var.s), ZSTR_LEN(var.s),  CONST_DEPRECATED);
+			new_sid_constant = REGISTER_STRINGL_CONSTANT("SID", ZSTR_VAL(var.s), ZSTR_LEN(var.s),  CONST_DEPRECATED);
 			smart_str_free(&var);
 		}
 	} else {
@@ -1521,9 +1525,17 @@ PHPAPI zend_result php_session_reset_id(void)
 			zval_ptr_dtor(sid);
 			ZVAL_EMPTY_STRING(sid);
 		} else {
-			REGISTER_STRINGL_CONSTANT("SID", "", 0, CONST_DEPRECATED);
+			new_sid_constant = REGISTER_STRINGL_CONSTANT("SID", "", 0, CONST_DEPRECATED);
 		}
 	}
+	if (new_sid_constant != NULL) {
+		zend_string *deprecation_reason = zend_string_init("as GET/POST sessions were deprecated", strlen("as GET/POST sessions were deprecated"), 1);
+		zend_attribute *deprecation_attrib = zend_add_global_constant_attribute(new_sid_constant, ZSTR_KNOWN(ZEND_STR_DEPRECATED_CAPITALIZED), 2);
+		ZVAL_STR(&deprecation_attrib->args[0].value, ZSTR_KNOWN(ZEND_STR_8_DOT_4));
+		deprecation_attrib->args[0].name = ZSTR_KNOWN(ZEND_STR_SINCE);
+		ZVAL_STR(&deprecation_attrib->args[1].value, deprecation_reason);
+		deprecation_attrib->args[1].name = ZSTR_KNOWN(ZEND_STR_MESSAGE);
+	}
 
 	/* Apply trans sid if sid cookie is not set */
 	apply_trans_sid = 0;
diff --git a/ext/session/tests/015.phpt b/ext/session/tests/015.phpt
index 3154022fae861..1a9285c339332 100644
--- a/ext/session/tests/015.phpt
+++ b/ext/session/tests/015.phpt
@@ -31,5 +31,5 @@ Deprecated: PHP Startup: Disabling session.use_only_cookies INI setting is depre
 
 Deprecated: PHP Startup: Enabling session.use_trans_sid INI setting is deprecated in Unknown on line 0
 
-Deprecated: Constant SID is deprecated in %s on line 6
+Deprecated: Constant SID is deprecated since 8.4, as GET/POST sessions were deprecated in %s on line %d
 <a href="/link?PHPSESSID=test015&PHPSESSID=test015">
diff --git a/ext/session/tests/bug72940.phpt b/ext/session/tests/bug72940.phpt
index 9a927a5419e4a..4977b05a55233 100644
--- a/ext/session/tests/bug72940.phpt
+++ b/ext/session/tests/bug72940.phpt
@@ -34,12 +34,12 @@ session_destroy();
 --EXPECTF--
 Deprecated: ini_set(): Disabling session.use_only_cookies INI setting is deprecated in %s on line 6
 
-Deprecated: Constant SID is deprecated in %s on line 8
+Deprecated: Constant SID is deprecated since 8.4, as GET/POST sessions were deprecated in %s on line %d
 string(12) "bug72940test"
 string(0) ""
 
 Deprecated: ini_set(): Disabling session.use_only_cookies INI setting is deprecated in %s on line 13
 
-Deprecated: Constant SID is deprecated in %s on line 15
+Deprecated: Constant SID is deprecated since 8.4, as GET/POST sessions were deprecated in %s on line %d
 string(11) "bug72940get"
 string(21) "PHPSESSID=bug72940get"
diff --git a/ext/session/tests/deprecations.phpt b/ext/session/tests/deprecations.phpt
index 4a2337fb99dad..0db8ce49b7d0c 100644
--- a/ext/session/tests/deprecations.phpt
+++ b/ext/session/tests/deprecations.phpt
@@ -60,5 +60,5 @@ Deprecated: session_start(): Disabling session.use_only_cookies INI setting is d
 
 Deprecated: session_start(): Enabling session.use_trans_sid INI setting is deprecated in %s on line 32
 
-Deprecated: Constant SID is deprecated in %s on line 34
+Deprecated: Constant SID is deprecated since 8.4, as GET/POST sessions were deprecated in %s on line %d
 PHPSESSID=%s