Add ChangeLog entry for PK_OPAQUE extensions
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/ChangeLog.d/extend-pk-opaque-ecc.txt b/ChangeLog.d/extend-pk-opaque-ecc.txt
new file mode 100644
index 0000000..ad5bdc0
--- /dev/null
+++ b/ChangeLog.d/extend-pk-opaque-ecc.txt
@@ -0,0 +1,6 @@
+Features
+ * Support for "opaque" (PSA-held) ECC keys in the PK module has been
+ extended: it is now possible to use mbedtls_pk_write_key_der(),
+ mbedtls_pk_write_key_pem(), mbedtls_pk_check_pair(), and
+ mbedtls_pk_verify() with opaque ECC keys (provided the PSA attributes
+ allow it).