diff --git a/README b/README
index 16e64386..f278b107 100644
--- a/README
+++ b/README
@@ -178,6 +178,7 @@ Modification Log from R6-3 to R6-4
         - set the position of a motor; (SSET, SUSE, SET)
         - set the "user" offset of a motor; (FOF, VOF, FOFF,OFF)
         - update the status of a motor; (STUP)
+        - adjust or turn off backlash; (BDST)
 
         All other fields are set to ASL = 1.
         
@@ -186,6 +187,18 @@ Modification Log from R6-3 to R6-4
         
         File modified: - MotorSrc/motorRecord.dbd
 
+6) Previous releases of the motor record distribution would not compile for
+        64-bit platforms.  Numerous minor modifications were made for this
+        release to attain 64-bit compatibility.  Note that at the time of
+        writing (03/14/08), this release was successfully compiled on a
+        Linux Fedora Core 6 x86_64 host using gcc version 4.1.2, but there
+        are bugs.  Since EPICS base (R3.14.9) has not had all the bugs wrung
+        out (Mantis ID's #309, #310), there are no immediate plans to debug
+        64-bit related problems.
+        
+        Files modified: - too numerous to mention.
+        
+
 
 Modification Log from R6-2 to R6-3
 ==================================
diff --git a/documentation/motor_release.html b/documentation/motor_release.html
index e0472285..38aa5bb1 100644
--- a/documentation/motor_release.html
+++ b/documentation/motor_release.html
@@ -92,6 +92,9 @@
     <li>
       update the status of a motor; (STUP)
     </li>
+    <li>
+      adjust or turn off backlash; (BDST)
+    </li>
   </ul>
   </p>
   <p>
@@ -107,6 +110,21 @@
   <H4><U>New Features</U></H4>
 </CENTER>
 
+<DIV align="left">
+  <P>
+  <U><B>64-bit compatiablity</B></U>
+  </P>
+  <p>
+  Previous releases of the motor record distribution would not compile for 64-bit 
+  platforms.  Numerous minor modifications were made for this release to attain 64-bit 
+  compatibility.  Note that at the time of writing (03/14/08), this release was 
+  successfully compiled on a Linux Fedora Core 6 x86_64 host using gcc version 
+  4.1.2, but there are bugs.  Since EPICS base (R3.14.9) has not had all the bugs 
+  wrung out (Mantis ID's #309, #310), there are no immediate plans to debug 64-bit 
+  related problems.
+  </p>
+</DIV>
+
 <br>
 
 <CENTER>