What approach should be taken to reduce the likelihood of issues after deploying changes in a Salesforce environment?

Establishing automated regression testing is a critical approach to minimize issues following deployments in a Salesforce environment. This method involves creating a suite of tests that run automatically to verify that existing functionality is not affected by new code changes or configurations. By doing so, any discrepancies or errors resulting from the deployment can be identified quickly, allowing for prompt resolution before the changes impact users.

Automated regression testing ensures consistency and reliability in quality checks after each deployment, saving time compared to manual testing. It facilitates continuous integration practices, where code changes are frequently merged and tested, streamlining the deployment process and increasing confidence in the stability of the application.

While other approaches like stress testing, user training, and access control play important roles in overall system quality and user experience, they do not specifically address the immediate repercussions of code changes in the same way that automated regression testing does. Stress testing primarily assesses how the system performs under high load, user training is essential for ensuring users can effectively navigate the system, and increased access controls focus on security and user permissions rather than on the stability of deployed features.