Index: openacs-4/packages/xowiki/tcl/upgrade/upgrade.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/upgrade/upgrade.tcl,v
diff -u -r1.15.2.5 -r1.15.2.6
--- openacs-4/packages/xowiki/tcl/upgrade/upgrade.tcl	10 May 2019 16:05:20 -0000	1.15.2.5
+++ openacs-4/packages/xowiki/tcl/upgrade/upgrade.tcl	21 May 2019 11:46:03 -0000	1.15.2.6
@@ -816,6 +816,17 @@
       }
     }
 
+    set v 5.10.0d32
+    if {[apm_version_names_compare $from_version_name $v] == -1 &&
+        [apm_version_names_compare $to_version_name $v] > -1} {
+      ns_log notice "-- upgrading to $v"
+
+      ns_log notice "dropping view xowiki_form_instance_item_view"
+      ::xo::dc dml drop {
+        drop view if exists xowiki_form_instance_item_view
+      }
+    }
+
   }
     
 }