rails--rails/actionview/CHANGELOG.md

• Enable select tag helper to mark prompt option as selected and/or disabled for required field. Example:

  select :post,
         :category,
         ["lifestyle", "programming", "spiritual"],
         { selected: "", disabled: "", prompt: "Choose one" },
         { required: true }
  

  Placeholder option would be selected and disabled. The HTML produced:

  <select required="required" name="post[category]" id="post_category">
  <option disabled="disabled" selected="selected" value="">Choose one</option>
  <option value="lifestyle">lifestyle</option>
  <option value="programming">programming</option>
  <option value="spiritual">spiritual</option></select>
  

  Sergey Prikhodko

• Don't enforce UTF-8 by default.

  With the disabling of TLS 1.0 by most major websites, continuing to run IE8 or lower becomes increasingly difficult so default to not enforcing UTF-8 encoding as it's not relevant to other browsers.

  Andrew White

• Change translation key of submit_tag from module_name_class_name to module_name/class_name.

  Rui Onodera

• Rails 6 requires Ruby 2.4.1 or newer.

  Jeremy Daer

Please check 5-2-stable for previous changes.