The core principles of DevOps methodology focus on collaboration, automation, and continuous improvement. DevOps aims to bridge the gap between development (Dev) and operations (Ops) by promoting a culture of shared responsibility and communication throughout the software development lifecycle. Key practices include continuous integration and continuous delivery (CI/CD), enabling frequent updates and quick response to changes. Emphasizing automation in testing and deployment processes leads to faster and more reliable product releases, while regular feedback promotes iterative refinement and enhances product quality.