* Added interceptors and observers from Mail [ML]

* Whole new API added with tests. See base.rb for full details. Old API is deprecated.

*Rails 3.0.0 [beta 1] (February 4, 2010)*

* The Mail::Message class has helped methods for all the field types that return 'common' defaults for the common use case, so to get the subject, mail.subject will give you a string, mail.date will give you a DateTime object, mail.from will give you an array of address specs (mikel@test.lindsaar.net) etc. If you want to access the field object itself, call mail[:field_name] which will return the field object you want, which you can then chain, like mail[:from].formatted

* #concat is now deprecated in favor of using <%= %> helpers [YK]

# for just url_for

include Rails.application.router.url_for

*Rails 3.0.0 [beta 1] (February 4, 2010)*

* Fixed that PrototypeHelper#update_page should return html_safe [DHH]

* #new_record? and #destroyed? were removed from ActiveModel::Lint. Use

persisted? instead. A model is persisted if it's not a new_record? and it was

* #to_key was added to ActiveModel::Lint so we can generate DOM IDs for

AMo objects with composite keys [MG]

*Rails 3.0.0 [beta 1] (February 4, 2010)*

* ActiveModel::Observer#add_observer!

* Reduced load time by deferring configuration of classes using

ActiveSupport::on_load(:component_name) [YK]

* JSON backend for YAJL. Preferred if available. #2666 [Brian Lopez]

*Rails 3.0.0 [beta 1] (February 4, 2010)*

* Introduce class_attribute to declare inheritable class attributes. Writing an attribute on a subclass behaves just like overriding the superclass reader method. Unifies and replaces most usage of cattr_accessor, class_inheritable_attribute, superclass_delegating_attribute, and extlib_inheritable_attribute. [Jeremy Kemper, Yehuda Katz]

* Session store configuration has changed [YK & CL]

* Added config.generators.templates to provide alternative paths for the generators

to look for templates [JV]

*Rails 3.0.0 [beta 1] (February 4, 2010)*

* Added "rake about" as a replacement for script/about [DHH]