Using parallel environments and release promotion in test automation

This post details the integration of parallel environments and release promotion into Azure Release Management Online (RMO) for test automation. It describes how to consolidate multiple release definitions into a single one with multiple environments, using deployment conditions to control the flow between them. A specific use case for testing an Application Tier (AT) vs. Data Tier (DT) mismatch scenario is presented, demonstrating how release promotion can be used to trigger specific test suites based on the success of prerequisite environments. The post also outlines the process of converting existing release definitions into environments within a new, consolidated definition, including manual variable migration.