[ci skip] UPGRADING

Reorganize performance section.
Add performance entry for GH-13041.

Author: nielsdos

UPGRADING

@@ -630,21 +630,26 @@ PHP 8.4 UPGRADE NOTES
 14. Performance Improvements
 ========================================
 
-* The performance of DOMNode::C14N() is greatly improved for the case without
-  an xpath query. This can give a time improvement of easily two order of
-  magnitude for documents with tens of thousands of nodes.
-
-* The performance of strspn() and strcspn() is greatly improved.
-  They now run in linear time instead of being bounded by quadratic time.
-
-* Improved the performance of strpbrk().
+- DOM:
+  . The performance of DOMNode::C14N() is greatly improved for the case without
+    an xpath query. This can give a time improvement of easily two order of
+    magnitude for documents with tens of thousands of nodes.
 
-* mb_strcut() is much faster now for UTF-8 and UTF-16 strings.
+- FTP:
+  . Improved the performance of FTP uploads up to a factor of 10x for large
+    uploads.
 
-* Looking up mbstring encoding names is much faster now.
+- MBString:
+  . The performance of strspn() and strcspn() is greatly improved.
+    They now run in linear time instead of being bounded by quadratic time.
+  . mb_strcut() is much faster now for UTF-8 and UTF-16 strings.
+  . Looking up mbstring encoding names is much faster now.
+  . The performance of converting SJIS-win to unicode is greatly improved.
 
-* The performance of converting SJIS-win to unicode is greatly improved.
+- MySQLnd:
+  . Improved the performance of MySQLnd quoting.
 
-* get_browser() is much faster now, up to 1.5x - 2.5x for some test cases.
+- Standard:
+  . Improved the performance of strpbrk().
+  . get_browser() is much faster now, up to 1.5x - 2.5x for some test cases.
 
-* Improved the performance of MySQLnd quoting.