diff -r 15b3ca7ee33f -r 8aa57a7fecc4 CHANGELOG
--- a/CHANGELOG	Mon Nov 18 22:05:42 2024 +0100
+++ b/CHANGELOG	Sat Nov 23 14:45:32 2024 +0100
@@ -12,6 +12,8 @@
  * adds runtime constants to read out the actual SBO sizes
  * adds improved version of UCX 2 Test framework (now a self-contained header)
  * adds cx_nmemb() utility function to common.h
+ * changes all functions, for which there is no dedicated xyz_a variant,
+   to accept NULL as allocator argument (in which case a default allocator will be used)
  * moves cx_compare_func typedef to compare.h
  * moves cx_szmul() to common.h
  * moves stream copy functions to new streams.h