Weekly Digest
Dec 15 - Dec 21, 2025
11 articles that week
What's New in Swift: December 2025 Edition
Tim Sneath reflects on Swift's explosive growth: from a simple blog post 10 years ago to 70+ repositories with hundreds of weekly contributors. The language now runs everywhere from Pebble watches to AWS Lambda.
React Native Wrapped 2025: The Year We Entered Our Polishing Era
Josh Yoes from Infinite Red declares 2025 as React Native's 'polishing era.' Seven releases, zero breaking changes in the final drop, and the New Architecture migration finally complete.
How Mobile Development Teams Use Kotlin in 2025
José Luis González, a JetBrains-certified Kotlin Trainer, reveals the production bugs that still plague mobile teams in 2025. One tiny mistake in exception handling can silently break your entire app's lifecycle management.
Adaptive Design: Moving Beyond Mobile-Only Apps
Fahd Imtiaz from Google's Android team reveals a stark reality: tablet and foldable users spend 9-14x more on apps than phone-only users. The mobile-only era is officially over.
Why You Don't Have to Minify JavaScript Code in React Native Apps
Davyd Narbutovich from Callstack challenges a web development habit that React Native developers can skip entirely. Turns out, minifying JavaScript in your RN apps might be wasted effort.
Exploring the Swift SDK for Android
The Android workgroup just dropped Swift 6.3 SDK nightly previews for Android, and several production apps with millions of downloads are already proving it works at scale.
Rewriting an app with millions of users: The talabat story
Talabat rewrote their app serving millions of daily users across 8 countries without a big bang migration. Here's how their CTO and engineering team pulled it off with Flutter.
Supercharging User Engagement: How Mercari is Using Server-Driven UI to Reduce Time-to-Market
Stefan from Mercari's Growth Platform team reveals how they escaped the endless cycle of app releases for every marketing campaign tweak. Their solution? Server-driven UI that lets marketers ship new campaigns in minutes instead of weeks.
Profiling MLC-LLM's OpenCL Backend on Android: Performance Insights
Running LLMs on Android devices just got a serious performance deep-dive. Callstack profiled MLC-LLM's OpenCL backend to uncover what actually happens when you run local AI on mobile hardware.
Kotlin 2.3.0 Released
Kotlin 2.3.0 just dropped with some serious multiplatform firepower. If you're building cross-platform apps, this release fundamentally changes how you work with Swift, Wasm, and native code.
How AI Is Transforming the Adoption of Secure-by-Default Mobile Frameworks
Meta's security team just cracked a major code migration challenge: getting developers to actually adopt secure frameworks without slowing them down. Their secret weapon? AI that writes its own security patches.