Microservices architecture: lessons learned and best practices in 2026

Microservices: the assessment in 2026After a decade of widespread adoption, microservices are now viewed in a more nuanced light. While the architecture has proven its value for large organizations, many companies have found that the operational complexity was not always justified.When microservices make senseTeams of more than 50 developers benefit from the independence of deployments. Applications requiring differentiated scalability per component take advantage of distributed architecture. Organizations practicing mature DevOps have the necessary foundations in place.The common pitfallsThe “distributed monolith” results from breaking things down too granularly with tight coupling between services. The operational complexity (monitoring, debugging, distributed transactions) is often underestimated. The network becomes a critical point of failure.The alternative: “modular monoliths”More and more architects recommend starting with a well-structured modular monolith, then gradually extracting microservices only when the need has been demonstrated. This pragmatic approach avoids over-engineering.Source: Sam Newman, author of “Building Microservices”, InfoQ, February 2026