diff --git a/bin/user/gw1000.py b/bin/user/gw1000.py
index da49ade..98660a5 100755
--- a/bin/user/gw1000.py
+++ b/bin/user/gw1000.py
@@ -51,6 +51,9 @@
         -   replace calls to deprecated threading.Thread.setDaemon() and
             threading.Thread.setName() methods with threading.Thread.daemon
             and threading.Thread.name properties respectively
+        -   changed default field map to emit current PM1 and PM10 obs as
+            fields 'pm1_0' and 'pm10_0' respectively, corresponding 24 hour
+            average fields utilise 'pm1_0' and 'pm10_0' prefixes as appropriate
     23 February 2024        v0.6.2 (not released as an extension package)
         -   fixed bug that caused the driver to crash if IP address discovery
             is used
diff --git a/changelog b/changelog
index f66bdac..81e8a08 100755
--- a/changelog
+++ b/changelog
@@ -10,6 +10,9 @@ v0.6.3
 -   replaced calls to deprecated threading.Thread.setDaemon() and
     threading.Thread.setName() methods with threading.Thread.daemon and
     threading.Thread.name properties respectively
+-   changed default field map to emit current PM1 and PM10 obs as fields
+    'pm1_0' and 'pm10_0' respectively, corresponding 24 hour average fields
+    utilise 'pm1_0' and 'pm10_0' prefixes as appropriate
 v0.6.2 (not released as an extension package)
 -   fixed bug that caused the driver to crash if device discovery is used
 v0.6.1