diff -r db8299984bfe -r 6a842bd49fea docs/Writerside/topics/about.md
--- a/docs/Writerside/topics/about.md	Mon Dec 22 15:47:59 2025 +0100
+++ b/docs/Writerside/topics/about.md	Mon Dec 22 16:12:20 2025 +0100
@@ -37,6 +37,7 @@
 * adds cxJsonCompare()
 * adds cxMapCompare()
 * adds line continuation support to CxProperties / CxPropertiesConfig
+* adds cx_hash_key_as_string()
 * adds cxBufferMaximumCapacity()
 * adds cxBufferAppendString()
 * adds CX_BUFFER_DO_NOT_FREE buffer flag