diff --git a/oscar/SleepLib/loader_plugins/cms50_loader.cpp b/oscar/SleepLib/loader_plugins/cms50_loader.cpp
index 2d79cfb8..b7b89888 100644
--- a/oscar/SleepLib/loader_plugins/cms50_loader.cpp
+++ b/oscar/SleepLib/loader_plugins/cms50_loader.cpp
@@ -7,10 +7,11 @@
  * for more details. */
 
 //********************************************************************************************
-/// IMPORTANT!!!
-//********************************************************************************************
-// Please INCREMENT the cms50_data_version in cms50_loader.h when making changes to this loader
-// that change loader behaviour or modify channels.
+// Please only INCREMENT the cms50_data_version in cms50_loader.h when making changes
+// that change loader behaviour or modify channels in a manner that fixes old data imports.
+// Note that changing the data version will require a reimport of existing data for which OSCAR
+// does not keep a backup - so it should be avoided if possible.
+// i.e. there is no need to change the version when adding support for new devices
 //********************************************************************************************
 
 #include <QApplication>
diff --git a/oscar/SleepLib/loader_plugins/cms50f37_loader.cpp b/oscar/SleepLib/loader_plugins/cms50f37_loader.cpp
index 59b02928..fa88bc38 100644
--- a/oscar/SleepLib/loader_plugins/cms50f37_loader.cpp
+++ b/oscar/SleepLib/loader_plugins/cms50f37_loader.cpp
@@ -7,10 +7,11 @@
  * for more details. */
 
 //********************************************************************************************
-/// IMPORTANT!!!
-//********************************************************************************************
-// Please INCREMENT the cms50_data_version in cms50_loader.h when making changes to this loader
-// that change loader behaviour or modify channels.
+// Please only INCREMENT the cms50f37_data_version in cms50f37_loader.h when making changes
+// that change loader behaviour or modify channels in a manner that fixes old data imports.
+// Note that changing the data version will require a reimport of existing data for which OSCAR
+// does not keep a backup - so it should be avoided if possible.
+// i.e. there is no need to change the version when adding support for new devices
 //********************************************************************************************
 
 // #include <QProgressBar>
diff --git a/oscar/SleepLib/loader_plugins/dreem_loader.cpp b/oscar/SleepLib/loader_plugins/dreem_loader.cpp
index 872dacca..a6c032d6 100644
--- a/oscar/SleepLib/loader_plugins/dreem_loader.cpp
+++ b/oscar/SleepLib/loader_plugins/dreem_loader.cpp
@@ -7,10 +7,11 @@
  * for more details. */
 
 //********************************************************************************************
-// IMPORTANT!!!
-//********************************************************************************************
-// Please INCREMENT the dreem_data_version in dreem_loader.h when making changes to this loader
-// that change loader behaviour or modify channels.
+// Please only INCREMENT the dreem_data_version in dreem_loader.h when making changes
+// that change loader behaviour or modify channels in a manner that fixes old data imports.
+// Note that changing the data version will require a reimport of existing data for which OSCAR
+// does not keep a backup - so it should be avoided if possible.
+// i.e. there is no need to change the version when adding support for new devices
 //********************************************************************************************
 
 #include <QDir>
diff --git a/oscar/SleepLib/loader_plugins/somnopose_loader.cpp b/oscar/SleepLib/loader_plugins/somnopose_loader.cpp
index 605a3a89..40f45de0 100644
--- a/oscar/SleepLib/loader_plugins/somnopose_loader.cpp
+++ b/oscar/SleepLib/loader_plugins/somnopose_loader.cpp
@@ -7,10 +7,11 @@
  * for more details. */
 
 //********************************************************************************************
-// IMPORTANT!!!
-//********************************************************************************************
-// Please INCREMENT the somnopose_data_version in somnopose_loader.h when making changes to this loader
-// that change loader behaviour or modify channels.
+// Please only INCREMENT the somnopose_data_version in somnopose_loader.h when making changes
+// that change loader behaviour or modify channels in a manner that fixes old data imports.
+// Note that changing the data version will require a reimport of existing data for which OSCAR
+// does not keep a backup - so it should be avoided if possible.
+// i.e. there is no need to change the version when adding support for new devices
 //********************************************************************************************
 
 #include <QDir>
diff --git a/oscar/SleepLib/loader_plugins/viatom_loader.cpp b/oscar/SleepLib/loader_plugins/viatom_loader.cpp
index 7c2f3e44..19147c4e 100644
--- a/oscar/SleepLib/loader_plugins/viatom_loader.cpp
+++ b/oscar/SleepLib/loader_plugins/viatom_loader.cpp
@@ -9,10 +9,11 @@
  * for more details. */
 
 //********************************************************************************************
-// IMPORTANT!!!
-//********************************************************************************************
-// Please INCREMENT the viatom_data_version in viatom_loader.h when making changes to this loader
-// that change loader behaviour or modify channels.
+// Please only INCREMENT the viatom_data_version in viatom_loader.h when making changes
+// that change loader behaviour or modify channels in a manner that fixes old data imports.
+// Note that changing the data version will require a reimport of existing data for which OSCAR
+// does not keep a backup - so it should be avoided if possible.
+// i.e. there is no need to change the version when adding support for new devices
 //********************************************************************************************
 
 #include <QDir>
diff --git a/oscar/SleepLib/loader_plugins/zeo_loader.cpp b/oscar/SleepLib/loader_plugins/zeo_loader.cpp
index e282d075..bdaf4c4d 100644
--- a/oscar/SleepLib/loader_plugins/zeo_loader.cpp
+++ b/oscar/SleepLib/loader_plugins/zeo_loader.cpp
@@ -8,10 +8,11 @@
  * for more details. */
 
 //********************************************************************************************
-// IMPORTANT!!!
-//********************************************************************************************
-// Please INCREMENT the zeo_data_version in zel_loader.h when making changes to this loader
-// that change loader behaviour or modify channels.
+// Please only INCREMENT the zeo_data_version in zeo_loader.h when making changes
+// that change loader behaviour or modify channels in a manner that fixes old data imports.
+// Note that changing the data version will require a reimport of existing data for which OSCAR
+// does not keep a backup - so it should be avoided if possible.
+// i.e. there is no need to change the version when adding support for new devices
 //********************************************************************************************
 
 #include <QDir>