1.0.0

Breaking Changes

• Rename allow_comments to comments for more consistent naming. #3695 by @pranas
• JavaScript window.AA has been removed, use window.ActiveAdmin. #3606 by @timoschilling
• f.form_buffers has been removed. #3486 by @varyonic
• Iconic has been removed. #3553 by @timoschilling
• config.show_comments_in_menu has been removed, see config.comments_menu. #4187 by @drn
• Rails 3.2 & Ruby 1.9.3 support has been dropped. #4848 by @deivid-rodriguez
• Ruby 2.0.0 support has been dropped. #4851 by @deivid-rodriguez
• Rails 4.0 & 4.1 support has been dropped. #4870 by @deivid-rodriguez

Enhancements

Major

• Migration from Metasearch to Ransack. #1979 by @seanlinsley
• Rails 4 support. #2326 by many people ❤️
• Rails 4.2 support. #3731 by @gonzedge and @timoschilling
• Rails 5 support. #4254 by @seanlinsley
• Rails 5.1 support. #4882 by @varyonic

Minor

• "Create another" checkbox for the new resource page. #4477 by @bolshakov
• Page supports belongs_to. #4759 by @Fivell and @zorab47
• Support for custom sorting strategies. #4768 by @Fivell
• Stream CSV downloads as they're generated. #3038 by @craigmcnamara
  • Disable streaming in development for easier debugging. #3535 by @seanlinsley
• Improved code reloading. #3783 by @chancancode
• Do not auto link to inaccessible actions. #3686 by @pranas
• Allow to enable comments on per-resource basis. #3695 by @pranas
• Unify DSL for index actions and actions dropdown: true. #3463 by @timoschilling
• Add DSL method includes for ActiveRecord::Relation#includes. #3464 by @timoschilling
• BOM (byte order mark) configurable for CSV download. #3519 by @timoschilling
• Column block on table index is now sortable by default. #3075 by @dmitry
• Allow Arbre to be used inside ActiveAdmin forms. #3486 by @varyonic
• Make AA ORM-agnostic. #2545 by @johnnyshields
• Add multi-record support to attributes_table_for. #2544 by @zorab47
• Table CSS classes are now prefixed to prevent clashes. #2532 by @TimPetricola
• Allow Inherited Resources shorthand for redirection. #2001 by @seanlinsley

    controller do
      # Redirects to index page instead of rendering updated resource
      def update
        update!{ collection_path }
      end
    end

• Accept block for download links. #2040 by @potatosalad

index download_links: ->{ can?(:view_all_download_links) || [:pdf] }

• Comments menu can be customized via configuration passed to config.comments_menu. #4187 by @drn
• Added config.route_options to namespace to customize routes. #4731 by [@stereoscott]

Security Fixes

• Prevents access to formats that the user not permitted to see. #4867 by @Fivell and @timoschilling
• Prevents potential DOS attack via Ruby symbols. #1926 by @seanlinsley
  • this isn't an issue for those using Ruby >= 2.2

Bug Fixes

• Fixes filters for has_many :through relationships. #2541 by @shekibobo
• "New" action item now only shows up on the index page. bf659bc by @seanlinsley
• Fixes comment creation bug with aliased resources. 9a08248 by @seanlinsley
• Fixes the deletion of :if and :unless from filters. #2523 by @PChambino

Deprecations

• ActiveAdmin::Event (ActiveAdmin::EventDispatcher). #3435 by @timoschilling
  ActiveAdmin::Event will be removed in a future version, ActiveAdmin switched
  to use ActiveSupport::Notifications
  NOTE: The blog parameters has changed:

ActiveSupport::Notifications.subscribe ActiveAdmin::Application::BeforeLoadEvent do |event, *args|
  # some code
end

ActiveSupport::Notifications.publish ActiveAdmin::Application::BeforeLoadEvent, "some data"