#! code: Drupal 9: How To Tell If A Page Is First Published

I was writing some code on a Drupal site that detects if a page is being published and I realised that this state isn’t as clear cut as you might expect.  Drupal stores the published state of a page as the ‘status’, with 0 being unpublished and 1 being published. With revisions being turned on by default since Drupal 8 it is possible to see past states of the page when saving the page. The issue is that there is nothing in the current state of the page stating that this is the first time it is being published.

As an example of this in action, and where I cam across this, we can use the hook_ENTITY_TYPE_update() hooks to detect if a page is published as it gets updated like this.

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