diff --git a/documentation/nt.rst b/documentation/nt.rst
index 129e816..c3cbb4a 100644
--- a/documentation/nt.rst
+++ b/documentation/nt.rst
@@ -61,6 +61,14 @@ alarm_t
 **"message"**
     Arbitrary string describing the condition being alarmed.
 
+NTEnum
+------
+
+Container for a scalar value selection from a list of strings.
+
+.. doxygenstruct:: pvxs::nt::NTEnum
+    :members:
+
 NTNDArray
 ---------
 
diff --git a/documentation/releasenotes.rst b/documentation/releasenotes.rst
index 08914e3..525bf59 100644
--- a/documentation/releasenotes.rst
+++ b/documentation/releasenotes.rst
@@ -3,9 +3,26 @@
 Release Notes
 =============
 
-0.1.5 (UNRELEASED)
+0.1.6 (UNRELEASED)
 ------------------
 
+0.1.5 (May 2021)
+----------------
+
+* Bug Fixes
+
+ * Fix several previously unusable template methods of `pvxs::shared_array`
+ * Fix `pvxs::logger_level_set`
+
+* Changes
+
+ * Default logger level changed from Err to Warn.
+ * Server warns when falling back from requested TCP port.
+ * Public headers include <iosfwd> instead of <ostream>.
+
+* Additions
+
+ * Add `pvxs::nt::NTEnum`
 
 0.1.4 (APR 2021)
 ----------------
diff --git a/src/pvxs/nt.h b/src/pvxs/nt.h
index f438b5c..b48b540 100644
--- a/src/pvxs/nt.h
+++ b/src/pvxs/nt.h
@@ -87,7 +87,7 @@ struct NTScalar {
 
 /** An enumerated value (choice from a list of strings)
  *
- * @since UNRELEASED
+ * @since 0.1.5
  */
 struct NTEnum {
     //! A TypeDef which can be appended