Remove unused member in des_context
diff --git a/ChangeLog b/ChangeLog
index 58c925f..7ef5184 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -96,6 +96,7 @@
    * Remove sig_oid2 and rename sig_oid1 to sig_oid in x509_crt and x509_crl.
    * x509_crt.key_usage changed from unsigned char to unsigned int.
    * Remove r and s from ecdsa_context
+   * Remove mode from des_context and des3_context
 
 Default behavior changes
    * The default minimum TLS version is now TLS 1.0.