diff --git a/cpp/ql/lib/change-notes/2023-03-30-bufferaccess.md b/cpp/ql/lib/change-notes/2023-03-30-bufferaccess.md
new file mode 100644
index 00000000000..1cd611501be
--- /dev/null
+++ b/cpp/ql/lib/change-notes/2023-03-30-bufferaccess.md
@@ -0,0 +1,4 @@
+---
+category: feature
+---
+* Added overridable predicates `getSizeExpr` and `getSizeMult` to the `BufferAccess` class (`semmle.code.cpp.security.BufferAccess.qll`). This makes it possible to model a larger class of buffer reads and writes using the library.
\ No newline at end of file