This document is for tracking deprecations and removals of 
Formtastic features and compatibilities.

v4.0 (planned)

* Remove support for Rails < 5.2
* Remove support for country_select 1.x syntax (they want to remove it in 3.0)
* Remove support for input_class, custom_input_class_name, standard_input_class_name, action_class, custom_action_class_name, standard_action_class_name

v3.1 (master)

* Deprecate support for Rails < 4.1
* Deprecate :member_value option
* Deprecate :member_label option
* Deprecate internal custom input class finder methods (input_class, custom_input_class_name, standard_input_class_name)
* Deprecate internal custom action class finder methods (action_class, custom_action_class_name, standard_action_class_name)

v3.0

* Remove support for Ruby version < 1.9.3
* Remove support for Rails version < 3.2.13
* Remove deprecated option :value (#1025)
* Remove deprecated option :hint_class (#1025)
* Remove deprecated option :error_class (#1025)
* Remove deprecated option :group_by (#1025)
* Remove deprecated option :group_label (#1025)
* Remove deprecated option :find_options (#1025)
* Deprecate support for Rails < 4.0.4

v2.3

* Remove deprecated date, time and datetime inputs
* Deprecate :error_class option
* Deprecate support for Rails < 3.2.13

v2.2

* Remove deprecated buttons DSL, ButtonHelper and commit_button helper
* Deprecate :value option
* Deprecate :hint_class option
* Deprecate :error_class option
* Deprecate :group_by and :group_label options
* Deprecate :find_options option

v2.1

* Remove the previously deprecated :label_method, :value_method & :group_label_method options
* Remove the previously deprecated :as => :numeric
* Remove the previously deprecated inline_errors_for and related methods
* Remove the previously deprecated SemanticFormHelper and SemanticFormBuilder
* Deprecate the Buttons DSL (f.buttons, f.commit_button) in favor of the new Actions DSL — see above