diff --git a/ChangeLog.d/psk_to_ms_mixed_psk.txt b/ChangeLog.d/psk_to_ms_mixed_psk.txt
new file mode 100644
index 0000000..b189661
--- /dev/null
+++ b/ChangeLog.d/psk_to_ms_mixed_psk.txt
@@ -0,0 +1,4 @@
+Features
+    * Extend the existing PSA_ALG_TLS12_PSK_TO_MS() algorithm to support
+      mixed-psk. Add an optional input PSA_KEY_DERIVATION_INPUT_OTHER_SECRET
+      holding the other secret.