Weekly Digest
Feb 16 - Feb 22, 2026
9 articles that week
Do you need an MCP to build your native app?
Sentry ran 1,350 trials to answer an uncomfortable question: does their newly acquired XcodeBuildMCP tool actually beat a simple markdown file for iOS development?
React Native Wrapped 2025: A Month-by-Month Recap
Michał Pierzchala and Szymon Rybczak from Callstack just dropped the ultimate React Native year in review. 2025 was the year everything changed: the New Architecture became default, 1.0 got announced, and the framework turned 10.
A Practical Guide to React Native Monorepo With Yarn Workspaces
Nazar Sydiaha from Callstack tackles one of React Native's biggest scaling challenges: managing multiple apps and shared packages without losing your mind. His monorepo guide could save your team weeks of dependency hell.
How a Learning Project Became Our Modern Mobile Test Framework
What started as one engineer's Appium 1 learning project at trivago became their production mobile test framework for six years. Here's how they evolved it through Appium 2 and 3 without another ground-up rewrite.
Under the Hood: Android 17's Lock-Free MessageQueue
Shai Barack and Charles Munger from Android reveal how a 20-year-old lock in MessageQueue was secretly causing UI jank across the entire Android ecosystem. Their solution? A lock-free data structure that's up to 5,000x faster.
Breaking Down Mobile App Vulnerabilities
Jija Bhattacharya from Guardsquare breaks down recent mobile app vulnerabilities that exposed millions of users. These weren't sophisticated exploits—they were logic flaws and authorization failures hiding in plain sight.
Swift Testing Agent Skill: Write high quality tests with AI
Antoine van der Lee from SwiftLee just open-sourced an Agent Skill that teaches AI to write Swift tests the right way. No more serialized tags killing your test performance.
Agent Device: AI-Native Mobile Automation for iOS and Android
Callstack just released a CLI tool that finally lets AI agents actually test mobile apps. No more agents that can write code but can't click a button.
Kodee's Kotlin Roundup: KotlinConf '26 Updates, New Releases, and More
KotlinConf 2026 just dropped its full schedule, and the Kotlin ecosystem is moving fast. From Kotlin 2.3's release to Amazon Fashion's backend migration story, there's a lot happening right now.