diff -r cf19b7820ff0 -r 94360453bce4 docs/Writerside/topics/about.md
--- a/docs/Writerside/topics/about.md	Thu Dec 25 12:07:37 2025 +0100
+++ b/docs/Writerside/topics/about.md	Sun Dec 28 14:10:14 2025 +0100
@@ -38,6 +38,7 @@
 * adds line continuation support to CxProperties / CxPropertiesConfig
 * adds cx_hash_key_as_string()
 * adds support for CxHashKey pointers in CX_HASH_KEY() and all map functions
+* adds CX_NULLSTR convenience macro
 * adds cx_strat()
 * adds cx_bstr() and cx_bstr_m()
 * adds cxBufferMaximumCapacity()
@@ -49,7 +50,6 @@
 * changes cxBufferTerminate() so that position and size are equal after a successful operation
 * changes cxBufferPutString() to accept any kind of string that cx_strcast() supports
 * changes that multiple string.h functions now also automatically apply cx_strcast() where possible
-* changes cx_strcat() family of function to return an int and removes two unnecessary variants
 * changes the names of cxDefineDestructor() and cxDefineAdvancedDestructor() to
   cxSetDestructor() and cxSetdvancedDestructor()
 * changes the name of cxCollectionCompareFunc() to cxSetCompareFunc()
@@ -68,6 +68,7 @@
   were not returning zero after freeing the memory when passed a size of zero
 * fixes that cx_list_default_insert_array() has the wrong nonnull attribute when used for cxListEmplaceArray()
 * removes the CX_STR() macro and instead makes the cx_str() inlinable
+* removes the cx_str*_m() functions
 * removes the sort_members feature from CxJsonWriter
 * removes the source and sink API from properties.h
 * removes the flush feature from CxBuffer