Should I update the Authorize.net application to the new version (updated in summer 2024)?

Authorize.net has recently (summer of 2024) updated their integration with Shopify. Their new integration doesn't yet work with auto-charging subscriptions in Shopify and as per their help document (https://support.authorize.net/knowledgebase/Knowledgearticle/?code=KA-04246) they have advised merchants who use subscriptions to keep using the legacy Authorize.net application, until they add support for subscriptions to the new one. We suspect that they will update their application to support subscriptions until September 30, 2024. 
Until then, we also recommend that you keep using the old Authorize.net application, so that your subscriptions will be able to get renewed.