diff --git a/NEWS b/NEWS
index cf04a23cf5f93..be96eaa28fdbb 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,10 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? ????, PHP 8.4.0RC1
 
+- MBString:
+  . Fixed bug GH-15824 (mb_detect_encoding(): Argument $encodings contains
+    invalid encoding "UTF8"). (Yuya Hamada)
+
 - Opcache:
   . Fixed bug GH-15657 (Segmentation fault in dasm_x86.h). (nielsdos)