diff --git a/version-2/Readme.markdown b/version-2/Readme.markdown
index f8e958b..236ffdf 100644
--- a/version-2/Readme.markdown
+++ b/version-2/Readme.markdown
@@ -40,11 +40,27 @@ datagrid_form_with(model: @users_grid, url: users_path)
 
 Built-in partial uses `form_with` no matter
 
+[Grep all deprecations](./deprecations.sh).
+
 ## Deprecated datagrid\_order\_for
 
 `datagrid_order_for` helper serves no purpose and should not be used directly.
 The recommended way is to include your ordering code directly into `datagrid/head` partial.
 See default [head partial](../app/views/datagrid/_head.html.erb) for example.
+[Grep all deprecations](./deprecations.sh).
+
+## Inherit Datagrid::Base
+
+`include Datagrid` causes method name space to be clamsy.
+Version 2 introduces a difference between the class
+that needs to be inherited and high level namespace (just like most gems do):
+
+``` ruby
+class ApplicationGrid < Datagrid::Base
+end
+```
+
+[Grep all deprecations](./deprecations.sh).
 
 ## Endless ranges for range filters
 
@@ -92,6 +108,11 @@ grid = UsersGrid.new(ActiveSupport::JSON.load(grid.attributes.to_json))
 grid.id # => 3..7
 ```
 
+This very likely breaks all `range: true` filters with custom block passed.
+All such filters can be seen with this script (works only for V2):
+
+[Search all broken range filters](./find_broken_range_filters.rb)
+
 ## Modern CSS classes naming conventions
 
 Built-in generated CSS classes renamed to match modern CSS naming conventions
@@ -336,17 +357,6 @@ Renders:
 [Modify built-in partials](https://github.com/bogdan/datagrid/wiki/Frontend#modifying-built-in-partials)
 if you want to change this behavior completely.
 
-## Inherit Datagrid::Base
-
-`include Datagrid` causes method name space to be clamsy.
-Version 2 introduces a difference between the class
-that needs to be inherited and high level namespace (just like most gems do):
-
-``` ruby
-class ApplicationGrid < Datagrid::Base
-end
-```
-
 ## ApplicationGrid base class
 
 Previously recommended base class `BaseGrid` is incosistent
diff --git a/version-2/deprecations.sh b/version-2/deprecations.sh
new file mode 100644
index 0000000..9671188
--- /dev/null
+++ b/version-2/deprecations.sh
@@ -0,0 +1,16 @@
+# Use datagrid_form_with
+git grep 'datagrid_form_for'
+
+# Inline content of datagrid/order_for partial
+git grep 'datagrid_order_for'
+
+# Put necessary classes manually
+git grep 'datagrid_column_classes' 
+
+# Inherit Datagrid::Base
+git grep 'include Datagrid' 
+
+# Rename to ApplicationGrid (optional)
+git grep 'BaseDatagrid'
+git grep 'BaseGrid'
+
diff --git a/version-2/find_broken_range_filters.rb b/version-2/find_broken_range_filters.rb
new file mode 100644
index 0000000..b8a988f
--- /dev/null
+++ b/version-2/find_broken_range_filters.rb
@@ -0,0 +1,15 @@
+# Important in development to have all classes in memory
+Rails.application.eager_load!
+
+raise "Use version 2" if Datagrid::VERSION < "2.0.0"
+
+included_classes = ObjectSpace.each_object(Class).select do |klass|
+  klass.included_modules.include?(Datagrid)
+end
+classes = [*included_classes, *Datagrid::Base.subclasses].uniq
+
+classes.flat_map(&:filters).select do |f|
+  f.respond_to?(:range?) && f.range? && f.block
+end.map do |f|
+  [f.grid_class, f.name].join("#")
+end