diff --git a/ChangeLog b/ChangeLog
index 43f1c2db2..d871f16c7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,7 +3,7 @@
 	* README.linux: Updated concerning USB permissions (really, this
 	  time). 
 	* doc/descriptions/unsupported.desc: Removed models that are now
-	  in pixma.desc.
+	  in pixma.desc. Updated comment for Plustek OpticPro S24.
 	* doc/descriptions-external/hp_rts88xx.desc: Added reason for not
 	  including the backend.
 	* backend/gt68xx.c backend/gt68xx_devices.c
diff --git a/doc/descriptions/unsupported.desc b/doc/descriptions/unsupported.desc
index c2382daef..b6ffb9874 100644
--- a/doc/descriptions/unsupported.desc
+++ b/doc/descriptions/unsupported.desc
@@ -9,7 +9,7 @@
 ;
 
 :backend "unsupported"		; name of backend
-:version "2006-05-18"		; version of backend
+:version "2006-05-21"		; version of backend
 :url "/contrib.html"
 ;:manpage "sane-mustek"		; name of manpage (if it exists)
 :comment "The devices mentioned here are not supported by any SANE backend. However, there may be links to information about them or stand-alone programs."
@@ -1725,7 +1725,7 @@
 :interface "USB"
 :usbid "0x07b3" "0x0601"
 :status :unsupported
-:comment "GL646 based, to be added to genesys backend"
+:comment "Product id 0x0601 is unsupported but may be supported by the genesys backend in future /GL646). Product id 0x040e is supported by the gt68xx backend."
 
 :model "OpticPro ST24"
 :url "/unsupported/plustek-opticpro-st24.html"