0a1,40
> diff --git a/date_content.info.yml b/date_content.info.yml
> index a21d512..a33a949 100644
> --- a/date_content.info.yml
> +++ b/date_content.info.yml
> @@ -1,8 +1,7 @@
>  name: 'Date Content Augmenter'
>  type: module
>  description: 'Associate content with any date value'
> -core: 8.x
> -core_version_requirement: '^8 || ^9'
> +core_version_requirement: ^9.3 || ^10
>  package: 'Date Augmenter'
>  dependencies:
>    - 'date_augmenter:date_augmenter'
> diff --git a/src/Entity/DateContent.php b/src/Entity/DateContent.php
> index 948ecfa..e7873ef 100644
> --- a/src/Entity/DateContent.php
> +++ b/src/Entity/DateContent.php
> @@ -164,7 +164,7 @@ class DateContent extends ContentEntityBase implements DateContentInterface {
>        $field_delta = (int) $this->field_delta->get(0)->getString();
>        $parent_field_value = $parent->get($field_name)->get($field_delta)->view();
>        if (!empty($parent_field_value['start'])) {
> -        $start = render($parent_field_value);
> +        $start = \Drupal::service('renderer')->render($parent_field_value);
>        }
>        else {
>          // @todo Provide better fallback behaviour.
> diff --git a/src/Form/DateContentForm.php b/src/Form/DateContentForm.php
> index 9dae817..0bead87 100644
> --- a/src/Form/DateContentForm.php
> +++ b/src/Form/DateContentForm.php
> @@ -51,7 +51,7 @@ class DateContentForm extends ContentEntityForm {
>          $field_delta = (int) $entity->field_delta->get(0)->getString();
>          $parent_field_value = $parent->get($field_name)->get($field_delta)->view();
>          if (!empty($parent_field_value['start'])) {
> -          $start = render($parent_field_value);
> +          $start = \Drupal::service('renderer')->render($parent_field_value);
>          }
>          else {
>            // @todo Provide better fallback behaviour.