Preparing v4.0.0. (bootstrap-ruby#490)

* Rename div_class to make refactoring more obvious.

* Fix issue bootstrap-ruby#476 for check_boxes.

* Fix issue bootstrap-ruby#476 for radio buttons.

* Test for `:custom` option just once.

* Fix a Minitest deprecation warning.

* Preparing v4.0.0.

Author: lcreid

CHANGELOG.md

@@ -6,14 +6,34 @@
 
 ### New features
 
+* Your contribution here!
+
+### Bugfixes
+
+* Your contribution here!
+
+## [4.0.0][] (2018-10-27)
+
+🚨 **This release adds support for Bootstrap v4 and drops support for Bootstrap v3.** 🚨
+
+If your app uses Bootstrap v3, you should continue using bootstrap_form 2.7.x instead.
+
+Bootstrap v3 and v4 are very different, and thus bootstrap_form now produces different markup in order to target v4. The changes are too many to list here; you can refer to Bootstrap's [Migrating to v4](https://getbootstrap.com/docs/4.0/migration/) page for a detailed explanation.
+
+In addition to these necessary markup changes, the bootstrap_form API itself has the following important changes in this release.
+
+### Breaking changes
+
+* See [Migrating to v4](https://getbootstrap.com/docs/4.0/migration/).
+
+### New features
+
 * [#476] Give a way to pass classes to the `div.form-check` wrapper for check boxes and radio buttons - [@lcreid](https://github.com/lcreid).
 * [461](https://github.com/bootstrap-ruby/bootstrap_form/pull/461): default form-inline class applied to parent content div on date select helpers. Can override with a :skip_inline option on the field helper - [@lancecarlson](https://github.com/lancecarlson).
-* Your contribution here!
 * The `button`, `submit`, and `primary` helpers can now receive an additional option, `extra_class`. This option allows us to specify additional CSS classes to be added to the corresponding button/input, _while_ maintaining the original default ones. E.g., a primary button with an `extra_class` 'test-button' will have its final CSS classes declaration as 'btn btn-primary test-button'.
 
 ### Bugfixes
 
-* Your contribution here!
 * [#347](https://github.com/bootstrap-ruby/bootstrap_form/issues/347) Fix `wrapper_class` and `wrapper` options for helpers that have `html_options`.
 * [#472](https://github.com/bootstrap-ruby/bootstrap_form/pull/472) Use `id` option value as `for` attribute of label for custom checkboxes and radio buttons.
 * [#478](https://github.com/bootstrap-ruby/bootstrap_form/issues/478) Fix offset for form group without label when multiple label widths are specified.
@@ -223,7 +243,8 @@ Features:
   - Added support for bootstrap_form_tag (@baldwindavid)
 
 
-[Pending Release]: https://github.com/bootstrap-ruby/bootstrap_form/compare/v4.0.0.alpha1...HEAD
+[Pending Release]: https://github.com/bootstrap-ruby/bootstrap_form/compare/v4.0.0...HEAD
+[4.0.0]: https://github.com/bootstrap-ruby/bootstrap_form/compare/v4.0.0.alpha1...v4.0.0
 [4.0.0.alpha1]: https://github.com/bootstrap-ruby/bootstrap_form/compare/v2.7.0...v4.0.0.alpha1
 [2.7.0]: https://github.com/bootstrap-ruby/bootstrap_form/compare/v2.6.0...v2.7.0
 [2.6.0]: https://github.com/bootstrap-ruby/bootstrap_form/compare/v2.5.3...v2.6.0

README.md

@@ -21,7 +21,7 @@ Bootstrap v4-style forms into your Rails application.
 Add it to your Gemfile:
 
 ```ruby
-gem "bootstrap_form", ">= 4.0.0.alpha1"
+gem "bootstrap_form", ">= 4.0.0"
 ```
 
 Then:

lib/bootstrap_form/version.rb

@@ -1,3 +1,3 @@
 module BootstrapForm
-  VERSION = "4.0.0.alpha1".freeze
+  VERSION = "4.0.0".freeze
 end

test/bootstrap_form_test.rb

@@ -576,7 +576,7 @@ class BootstrapFormTest < ActionView::TestCase
     @user.terms = true
     assert @user.valid?
 
-    assert_equal nil, @builder.error_summary
+    assert_nil @builder.error_summary
   end
 
   test 'errors_on renders the errors for a specific attribute when invalid' do