app/views/adminpanel/form/_select.html.erb in adminpanel-2.5.5 vs app/views/adminpanel/form/_select.html.erb in adminpanel-2.6.0

@@ -1,21 +1,21 @@
 <%
   block = properties['options']
   args = properties.except('options')
   collection = block.call(f.object)
   if collection.class.to_s.demodulize == 'ActiveRecord_Relation'
-    id_method = :id
-    label_method = :name
-  else
-    id_method = :first
-    label_method = :last
+    properties['id_method'] ||= :id
+    properties['name_method'] ||= :name
+    collection = options_from_collection_for_select(
+                    collection,
+                    properties['id_method'],
+                    properties['name_method'],
+                    @resource_instance.send(attribute)
+                  )
+
+  elsif ['Hash', 'Array', 'HashWithIndifferentAccess'].include? collection.class.to_s.demodulize
+    collection = options_for_select(collection)
   end
-  collection = options_from_collection_for_select(
-                  collection,
-                  id_method,
-                  label_method,
-                  @resource_instance.send(attribute)
-                )
 %>
 <%= f.select attribute, collection, { include_blank: true }, args  %>
 
 <% if !is_modal &&
   (