data: clarify FreshnessPeriod=0 semantics
refs #5268
Change-Id: I58ae182637a5377f3e54db69119a94a9620db51d
diff --git a/changelog.rst b/changelog.rst
index 7c8f197..be79186 100644
--- a/changelog.rst
+++ b/changelog.rst
@@ -38,7 +38,7 @@
- **Data**
+ Make ``MetaInfo`` and ``Content`` elements optional
- + Change semantics of omitted (or set to zero) ``FreshnessPeriod`` element: it cannot be used to satisfy Interests with ``MustBeFresh``
+ + Change semantics of omitted (or set to zero) ``FreshnessPeriod`` element: it cannot be used to satisfy Interests with ``MustBeFresh`` during content store lookup
- **Signature**