diff --git a/python/HISTORY.md b/python/HISTORY.md
index f528c936..efc28a63 100644
--- a/python/HISTORY.md
+++ b/python/HISTORY.md
@@ -12,6 +12,12 @@ This file does not generally include descriptions of patch releases (vX.Y.Z
 changes.  (Metadata updates are best checked
 [upstream](https://github.com/google/libphonenumber/blob/master/release_notes.txt).)
 
+
+What's new in 9.0.23
+--------------------
+
+Extra `min_candidate_length` parameter to `PhoneNumberMatcher`.
+
 What's new in 9.0.0
 --------------------