Add ParametersSha256DigestComponent

Change-Id: I4ee53136adc6a0fc0af9abbb9fb8fdec265ba749
Refs: #4658, #4690
diff --git a/changelog.rst b/changelog.rst
index 49bb1c9..078b694 100644
--- a/changelog.rst
+++ b/changelog.rst
@@ -23,6 +23,7 @@
 
   + Lift restriction on name component types, allowing types in the range ``1`` - ``32767``.
   + Correct definition of name URI encoding: disallow unescaped encoding of PLUS ``+`` and allow TILDE ``~``.
+  + Add ``ParametersSha256DigestComponent``
 
 Version 0.2.1
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