diff -r 0ac4aa1737fd -r 6e0c3a8a914a docs/Writerside/topics/about.md
--- a/docs/Writerside/topics/about.md	Fri Oct 17 15:04:56 2025 +0200
+++ b/docs/Writerside/topics/about.md	Fri Oct 17 16:53:24 2025 +0200
@@ -71,6 +71,7 @@
 * fixes allocator arguments for some printf.h functions not being const
 * fixes that cx_tree_search() did not investigate subtrees with equally good distance
 * fixes that memory was freed by the wrong allocator in cx_vasprintf_a() when the underlying vsnprintf() failed
+* removes all functions that create mutating iterators in favor of making all iterators possibly mutating
 * removes the use of C23 attributes because they don't mix well with GNU attributes in GCC 15
 
 ### Version 3.1 - 2025-02-11 {collapsible="true"}