Features of Ruby on Rails 4.0

Features of Rails 4.0:
    •    strong_parameters
    •    Rails.queue
    •    Turbolinks
    •    Russian Doll Caching (cache_digests)
    •    ActionController::Live (streaming)
    •    PATCH verb
    •    Routing concerns
    •    Extraction of activeresource
    •    ActiveRecord::Relation changes and improvements
    •    Removal of plugin support (not gems; only those that are installed in vendor/plugins)
    •    Removal of Rails 2 finder syntax
    •    Deprecation of most dynamic finders
    •    Deprecation of eager-evaluated scopes

Slide deck: speakerdeck.com/u/alindeman/p/rails-4-dot-0-whirlwind-tour

Video:  http://vimeo.com/51181496