OIC 3 brings new features like Parallel flow, Cut -paste and publish events etc.
Using Parallel flow one can define branches to run two or more actions in parallel. Parallel flows enable to perform multiple tasks at the same time, It is specially useful when we must perform several time consuming and independent tasks.
Below screeshot: Where from a scheduled integration, we are running 3 rest services in parallel and in same time.
One more example:
Suppose we have to subscribe Purchase order events or employee events from ERP and then we need to send this information to multiple downstream applications that we can acheive using parallel action which will save a lot of processing time.