

Ad Manager (GPT) Tags and Lazy Loading, etc. - MAJOR API UPDATE
For those that haven't updated their GPT code. Watch out for the new lazy loading settings. This style was deprecated:
googletag.pubads().enableLazyLoad({
Thanks Google for putting out a notice ahead of time. There is no date on when the old methods will stop working.
This is the new code for lazy loading:
https://developers.google.com/publisher-tag/reference#googletag.config.PageSettingsConfig.lazyLoad
There are far more items being removed under this old model. I suggest you check your setups.
googletag.setConfig() is the new one.
As shown here: https://developers.google.com/publisher-tag/guides/config-migration