InfoQ Homepage Refactoring Content on InfoQ
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Combining Continuous Delivery with Pair Programming: Lessons Learned
Pair programming and continuous integration can go hand-in-hand. Pushing to main multiple times a day is hard in isolation, leading to delays, large PRs, and merge issues, Ola Hast and Asgaut Mjølne Söderbom mentioned in their talk about continuous delivery with pair programming at QCon London. Pairing enables instant code review, easier refactoring, fewer bugs, and higher team resilience.
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Anthropic’s Claude Opus 4.1 Improves Refactoring and Safety, Scores 74.5% SWE-bench Verified
Anthropic has launched Claude Opus 4.1, an update that strengthens coding reliability in multi-file projects and improves reasoning across long interactions. The model also raised its SWE-bench Verified score to 74.5%, up from 72.5%. Building on Opus 4, the new version strengthens Claude’s ability to act as a coding assistant, particularly in multi-file contexts.
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How a Sociotechnical Approach Can Help to Deal with Complexity
Today’s software professionals navigate a maze of technical, business, and social complexity. According to Xin Yao, thriving in this environment requires more than just technical and business expertise. We need fluency in decoupling systems for maintainability, reconnecting them for business value, and working with the messiness of organizational dynamics.
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How Allegro Does Automated Code Migrations for over 2000 Microservices
Allegro shared the details of the process it uses to manage code migrations at scale. The company combined GitHub’s Dependabot and OpenRewrite projects into a custom solution that helps developers perform mundane code migration tasks automatically across numerous source code repositories. The company tackled many edge cases to ensure the process operates smoothly, relieving initial trust issues.
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QCon SF 2024: Refactoring Large, Stubborn Codebases
Jake Zimmerman, technical lead of Sorbet at Stripe, and Getty Ritter, Ruby infrastructure engineer at Stripe, presented Refactoring Stubborn, Legacy Codebases at the 2024 QCon San Francisco conference. Zimmerman and Ritter demonstrated how to fix complaints on maintaining a large codebase with leverage and by ratcheting incremental progress.
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Google Expands Duet AI in Google Cloud for App Development, DevOps, and More
At Google Cloud Next, Google has expanded its always-on collaborator Duet AI with new features aimed at helping developers with application development, DevOps, database management and migration, data analysis and visualization, as well as cybersecurity.
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Applying Test-Driven Development in the Cloud
In the cloud, application development can be treated end-to-end with its accompanying infrastructure. This makes it possible to use test-driven development (TDD) and refactoring on the full application, which can bring down maintenance costs.
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Kent Beck: Software Design is an Exercise in Human Relationships
In the closing keynote at QCon SF, Kent Beck spoke about how software design is an exercise in human relationships, why iterative and incremental development is the most cost effective way to build software, and how the overall cost of a software system is directly related to the cost of coupling and decoupling and the jackpot changes which result in cascaded coupling.
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Error Prone Support Introduces New Bug Checks and Refaster Templates
Picnic, the “supermarket on wheels” company, has released Error Prone Support, an open source project that extends Google's Error Prone, that contains thirty new bug checks to detect, and optionally resolve, possible mistakes during compilation of a Java project. More than fifty new Refaster rule collections are available to improve code uniformity by automatically rewriting the codebase.
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Building an Effective Platform by Focusing on End-to-End Workflows
Platform engineering teams need to focus on building end-to-end workflows versus individual tools according to Naphat Sanguansin, CTO at Prodvana. A focus on workflows will help to abstract away the complexities of running services and allow for application engineers to focus on their product.
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Fast-Track Application Refactoring with the Generally Available AWS Migration Hub Refactor Spaces
AWS first introduced the preview of AWS Migration Hub Refactor Spaces, a new capability of AWS Migration Hub, last November at re:Invent 2021. Now, the public cloud provider announced the general availability of the Migration Hub capability.
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Spotify's Journey to a Unified Codebase for Its Web and Desktop Clients
Spotify recently published an account of their journey towards a unified codebase for their web and desktop clients. Spotify's team was the owner of a web-player and a separate, full-featured desktop client. Due to having to implement many features twice, they were not shipping at the pace they wanted. Now Spotify created one codebase for both, resulting in an improved development cadence.
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Sentry Migrates Its Frontend to Typescript - Lessons Learned
Mark Story and Priscila Oliveira recently shared lessons learned when converting Sentry’s frontend codebase (one-year effort, 100,000 lines of code) to TypeScript. The pair described a gradual conversion process in which TypeScript progressively replaced JavaScript, types were continuously refined as new TypeScript language features were released, and complex types were built incrementally.
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Refactoring Large Haskell Codebases Using Facebook Retrie
Facebook has open-sourced the tool they use to refactor their own Sigma anti-abuse rule engine. Named Retrie, this tool allows developers to describe rewrites as equations in Haskell syntax rather than regular expressions.
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Decomposing a Monolith Does Not Require Microservices - Sam Newman at QCon London
Sam Newman says the goal of decomposing a monolith must be independent deployability, and developers need to focus on the outcome, not the technology. Speaking at QCon London, he said, "The monolith is not the enemy" and, "Microservices should not be the default choice."