```ruby
# Be sure to restart your server when you modify this file.
#
# This file contains migration options to ease your Rails 5.0 upgrade.
#
# Once upgraded flip defaults one by one to migrate to the new default.
#
# Read the Guide for Upgrading Ruby on Rails for more info on each option.

# Enable per-form CSRF tokens. Previous versions had false.
Rails.application.config.action_controller.per_form_csrf_tokens = false

# Enable origin-checking CSRF mitigation. Previous versions had false.
Rails.application.config.action_controller.forgery_protection_origin_check = false

# Make Ruby 2.4 preserve the timezone of the receiver when calling `to_time`.
# Previous versions had false.
ActiveSupport.to_time_preserves_timezone = false

# Require `belongs_to` associations by default. Previous versions had false.
Rails.application.config.active_record.belongs_to_required_by_default = false

# Do not halt callback chains when a callback returns false. Previous versions had true.
ActiveSupport.halt_callback_chains_on_return_false = true
```

Move to new rails framework defaults
user
```ruby
# Be sure to restart your server when you modify this file.
#
# This file contains migration options to ease your Rails 5.0 upgrade.
#
# Once upgraded flip defaults one by one to migrate to the new default.
#
# Read the Guide for Upgrading Ruby on Rails for more info on each option.

# Make Ruby 2.4 preserve the timezone of the receiver when calling `to_time`.
# Previous versions had false.
ActiveSupport.to_time_preserves_timezone = false
```
assistant