Update Rails ActiveRecord object without triggering validation and updating updated_at

update_without_touch.rb

object = MyModel.create(name: 'Sam')

# update_attribute bypass validation but will touch update_at
object.update_attribute(:name, 'Yo')
object.name == 'Yo'  # true
object.name_changed?  # false

# update_column bypass validation but will not touch update_at
object.update_column(:name, 'Yo')
object.name == 'Yo'  # true
object.name_changed?  # false