Hello, I am on an old version of Rails (3.0.5) and can't upgrade right now. When I try to use assign_attributes on a model I get the error that the method is not found as below NoMethodError - undefined method `assign_attributes' for #<User:0x007ffb7c2ae638>: activemodel (3.0.5) lib/active_model/attribute_methods.rb:364:in `method_missing' activerecord (3.0.5) lib/active_record/attribute_methods.rb:46:in `method_missing' I searched for the method in the classes where update_attributes is defined but indeed I couldn't find assign_attributes defined in any of the gems. From the history of the method in the docs <http://apidock.com/rails/v3.1.0/ActiveRecord/Base/assign_attributes> I understand it was created in 2.3.8 so I would think the method would be there in 3.0.5. Any thoughts on why my ActiveRecord 3.0.5 gem doesn't have this method defined? Thanks, -S -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To unsubscribe from this group and stop receiving emails from it, send an email to rubyonrails-core+unsubscribe@googlegroups.com. To post to this group, send email to rubyonrails-core@googlegroups.com. Visit this group at http://groups.google.com/group/rubyonrails-core. For more options, visit https://groups.google.com/d/optout.