Oracle is adding new features to a big variety of cloud services practically every month and OIC is one of them.
Accelerators
Are run-ready business integrations or technical patterns that you can configure and activate. Accelerators are supported by the vendor (Oracle) or third party. There are business accelerators and technical accelerators. They are configurable in OIC and in Oracle Applications (SaaS) and extensible. Accelerators are upgraded periodically by the producer and paid mode (at the discretion of the producer).
Recipes
Are templates or samples that give you a head start. Recipes are not supported, fully editable, no auto-upgrade, configurable in OIC and always free.
Other new features
New Adapter for Oracle Streaming (kafka)
New Paypal adapter
New AS2 adapter
REST adapter added OpenApi support
Salesforce adapter added capability for calling APEX classes
And more
That’s all, hope this helps! 🙂
approaching off the bow 
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