What is the main benefit of using a Parallel Run release strategy?

The primary advantage of utilizing a Parallel Run release strategy lies in the capability to operate both the old and new versions of a system concurrently. This approach allows organizations to test the new version in real-time while the existing version remains active. It ensures that any discrepancies or issues can be identified and addressed promptly before fully transitioning to the new version. By allowing simultaneous operations, stakeholders can make informed decisions about switching over based on the new version's performance and usability, enhancing both reliability and user confidence during the rollout phase.

While reducing downtime, minimizing development costs, and ensuring immediate feedback may also be important considerations in a release strategy, they do not fundamentally encapsulate the essence of a Parallel Run. The distinguishing feature is the dual operation of both versions, which provides a robust safety net against potential failures and supports a smoother transition process.