Rails 5.1 Deprecation Warning - update discussion replacing deprecated attr_changed? with save_change_to_attr? and #373
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Rails 5.1 Deprecation Warning - update discussion replacing deprecated attr_changed? with save_change_to_attr? and
See:
https://www.fastruby.io/blog/rails/upgrades/active-record-5-1-api-changes.html
or
https://docspring.com/blog/posts/rails-5-1-active-model-dirty-changes/