diff --git a/documentation/RELEASE_NOTES.html b/documentation/RELEASE_NOTES.html
index 08266cc58..5e46fc357 100644
--- a/documentation/RELEASE_NOTES.html
+++ b/documentation/RELEASE_NOTES.html
@@ -3,16 +3,24 @@
 <html>
 <head>
   <meta http-equiv="content-type" content="text/html; charset=iso-8859-1">
-  <title>EPICS Base R3.15.1 Release Notes</title>
+  <title>EPICS Base R3.15.0.x Release Notes</title>
 </head>
 
 <body lang="en">
-<h1 align="center">EPICS Base Release 3.15.1</h1>
+<h1 align="center">EPICS Base Release 3.15.0.x</h1>
 
+<p>
+EPICS Base 3.15.0.x releases are not intended for use in production systems.</p>
 
-<h2 align="center">Changes between 3.14.x and 3.15.1</h2>
+<h2 align="center">Changes between 3.14.x and 3.15.0.x</h2>
 <!-- Insert new items immediately below here ... -->
 
+<h3>
+Enabled histogram record type</h3>
+
+<p>
+The histogram record was not included in the base.dbd file in any 3.14 release,
+but has now been added along with its associated soft device support.</p>
 
 <h3>
 Moved src/RTEMS/base directory</h3>
@@ -24,8 +32,8 @@ These files are now found under src/RTEMS.</p>
 Removed 3.13 compatibility</h3>
 
 <p>
-Removed the 3.13 &lt;top&gt;/config directory and build compatibility rules and variables, and
-various conversion documents.</p>
+Removed the 3.13 &lt;top&gt;/config directory and build compatibility rules and
+variables, and various conversion documents.</p>
 
 </body>
 </html>
diff --git a/src/dev/softDev/devSoft.dbd b/src/dev/softDev/devSoft.dbd
index 763ac47d5..5f90aba86 100644
--- a/src/dev/softDev/devSoft.dbd
+++ b/src/dev/softDev/devSoft.dbd
@@ -6,6 +6,7 @@ device(bi,CONSTANT,devBiSoft,"Soft Channel")
 device(bo,CONSTANT,devBoSoft,"Soft Channel")
 device(calcout,CONSTANT,devCalcoutSoft,"Soft Channel")
 device(event,CONSTANT,devEventSoft,"Soft Channel")
+device(histogram,CONSTANT,devHistogramSoft,"Soft Channel")
 device(longin,CONSTANT,devLiSoft,"Soft Channel")
 device(longout,CONSTANT,devLoSoft,"Soft Channel")
 device(mbbi,CONSTANT,devMbbiSoft,"Soft Channel")
