We have a site finally patched all the way up to 8.5.3. Our old site (8.4.0) was using a [Views patch](https://www.drupal.org/project/drupal/issues/2786577) (just for reference) that allowed for a content date field to be contextually filtered by month and year using a URL like <https://example.com/events/042018>, which returned all events for April, 2018.

This patch is no longer applicable to the Views module 8.5.3. It seems to be integrated for *Created Date* and *Updated Date*, but I don't need these fields. I am trying to access a content date field that I made.

Does anyone know how to do this?  

Can you help me get started on creating a custom views contextual filter handler that can access this custom date field?

**Example of view:** Show all events filtering by date, but instead of an exact date, only grab month and year parts.

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> [![views content date month year](https://i.stack.imgur.com/viuJq.png)](https://i.stack.imgur.com/viuJq.png)
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