New functionality: Global form events added
Historically, callbacks embedded in the HubSpot form embed code were the only way to trigger custom code on certain HubSpot form events (e.g. on form submission). Now, developers will be able to listen for global form events as well, allowing custom code with greater flexibility and extensibility.
Nothing; this is entirely new functionality! Developers can continue to use the existing form callback functionality as before.
Global form events are now live; developers can begin using them immediately! Check out the documentation here: https://developers.hubspot.com/global-form-events