In April 2024, we are releasing a new version of Google Ads scripts  that is updated to use Google Ads API v15 .search  and mutate  methods allow for new API features as soon as they become available, and have been supporting Google Ads API v15  since its release.
  AdsApp.adMedia() will throw a sunset error. Media is no longer supported. Assets  are used instead.ResponsiveDisplayAd would previously return a Media when fetching its marketing image or logo image. Instead, this will now return null.ImageAd.getImage() previously returned a Media. It will now return an Asset instead. This will be a breaking change if you depend on this method. 
In addition to these changes, we will be increasing the default reporting version to v15 if you don't manually specify a version.forum . - Mike Cloonan, Google Ads Scripts Team