InfoQ Homepage Development Content on InfoQ
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State of JavaScript 2025: Survey Reveals a Maturing Ecosystem with TypeScript Cementing Dominance
The 2025 State of JavaScript survey reveals a maturing ecosystem with TypeScript's dominance solidified—40% of developers use it exclusively. Vite surges in build tools with a 98% satisfaction rate, while React remains the top framework amidst mixed feedback. AI-assisted development grows notably, and Node.js stays dominant. Overall, developer satisfaction stabilizes at 3.8/5.
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QCon London 2026: Morgan Stanley Rethinks Its API Program for the MCP Era
Morgan Stanley engineers Jim Gough and Andreea Niculcea showed how they're retooling the bank's API program for AI agents using MCP and FINOS CALM. Live demos covered compliance guardrails, deployment gates, and zero-downtime rollouts across 100+ APIs. First API deployment shrank from two years to two weeks. They also demoed Google's A2A protocol running alongside MCP.
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QCon London 2026: Spritely: Infrastructure for the Future of the Internet
Christine Lemmer-Webber, executive director at the Spritely Institute, and David Thompson, CTO at the Spritely Institute, presented “Spritely: Infrastructure for the Future of the Internet” at QCon London 2026, where they discussed how Spritely works to decentralize the Internet with new foundational technologies that put users in control.
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AI Model Discovers 22 Firefox Vulnerabilities in Two Weeks
Claude Opus 4.6 discovered 22 Firefox vulnerabilities in two weeks, including 14 high-severity bugs, as nearly 20% of all critical Firefox vulnerabilities were fixed in 2025. The AI also wrote working exploits for two bugs, demonstrating emerging capabilities that give defenders a temporary advantage but signal an accelerating arms race in cybersecurity.
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.NET 11 Preview 2 Brings Performance Gains, Improved Mapping, and Native OpenTelemetry Support
Microsoft has released the second preview of .NET 11, featuring native OpenTelemetry tracing for ASP.NET Core, major Map control improvements and faster bindings in .NET MAUI, Blazor TempData support, a new Web Worker project template, and performance improvements across the runtime, SDK, and libraries.
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QCon London 2026: Wrangling Telemetry at Scale, a Guide to Self-Hosted Observability
At QCon London 2026, Colin Douch discussed building and operating self-hosted monitoring stacks, surveyed the current tooling landscape, and explained how to build a coherent observability setup rather than treating logs, metrics, and traces as separate pillars.
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Where Do Humans Fit in AI-Assisted Software Development?
An article on Martin Fowler’s blog by Kief Morris examines the role of humans in AI-assisted software engineering, arguing developers are unlikely to move fully “out of the loop.” Instead, teams may work “on the loop,” designing tests, specifications, and feedback mechanisms to guide AI agents, as industry discussions focus on how such systems should be verified and governed.
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QCon London 2026: Rewriting All of Spotify's Code Base, All the Time
At QCon London 2026, Spotify's Jo Kelly-Fenton and Aleksandar Mitic discussed Honk, an AI-powered coding agent that enables code migrations across Spotify's codebase. The system improves migration, reducing timelines drastically and addressing complexities that traditional scripts could not. Key challenges included handling edge cases and standardizing the codebase to facilitate review processes.
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HubSpot’s Sidekick: Multi-Model AI Code Review with 90% Faster Feedback and 80% Engineer Approval
HubSpot engineers introduced Sidekick, an internal AI powered code review system that analyzes pull requests using large language models and filters feedback through a secondary “judge agent.” The system reduced time to first feedback on pull requests by about 90 percent and is now used across tens of thousands of internal pull requests.
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Java 26 Delivers Language Innovation, Library Improvements, Performance and Security
Oracle has released version 26 of the Java programming language and virtual machine. As the first non-LTS release since JDK 25, the final feature set includes 10 JEPs, five of which are still progressing through the preview and incubator stages. This release focuses on Java library improvements, language innovation, performance and security.
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QCon London 2026: Use<’lifetimes> For<’what>
At QCon London, TrueLayer engineer Ethan Brierley reframed Rust lifetimes using the Polonius borrow checker's mental model: lifetimes as sets of loans rather than regions of code. He built from borrow checker basics through variance and subtyping to higher-ranked lifetimes with serde, showing how the loans perspective makes previously confusing lifetime errors intuitive.
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QCon London 2026: Uncorking Queueing Bottlenecks with OpenTelemetry
At QCon London 2026, Julian Wreford and Oli Lane from Gearset showcased how distributed tracing and SLOs solve asynchronous observability gaps. By shifting from queue-size metrics to latency-based alerts, the team improved incident response. Key technical takeaways included using OpenTelemetry trace state for async duration tracking and wide events to uncover hidden architectural waste.
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QCon London 2026: Ontology‐Driven Observability: Building the E2E Knowledge Graph at Netflix Scale
Prasanna Vijayanathan and Renzo Sanchez-Silva, both Engineers at Netflix, presented “Ontology‐Driven Observability: Building the E2E Knowledge Graph at Netflix Scale” at QCon London 2026, where they discussed the design and implementation of an end-to-end knowledge graph that models the Netflix user experience.
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QCon London 2026: from DVDs to Global Streaming How Netflix’s Commerce Architecture Actually Evolved
Dynamic principal engineer at Netflix, Kasia Trapszo, expertly navigates the evolution of the company’s commerce architecture from a DVD rental service to a global streaming giant. Her insights on pragmatic adaptations to billing systems reveal invaluable lessons on agility, localization, and the complexity of modern payment landscapes.
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QCon London 2026: Managing Asynchronous APIs at Scale
At QCon London 2026, Ian Cooper, senior principal engineer at Just Eat Takeaway, discussed managing asynchronous APIs in production, showing how endpoint definitions can drive code generation, schema registration, and the automation of messaging infrastructure.