"Setting Multiple Properties At Once" article missing

Hello,

I apologize if this is not the right place to open this issue.I got here from https://github.com/ember-learn/guides-app, where I got from this page https://guides.emberjs.com/v1.10.0/cookbook/working_with_objects/setting_multiple_properties_at_once/ after I clicked on this warning in attempt to find an up-to-date version of this article "Old Guides - You are viewing the guides for Ember v1.10.0."
Does it exist?

As a side issue - probably the 404 page should stop referring people to https://github.com/ember-learn/guides-app/issues through "file a ticket" link there.

Thank you!