Kotlin Weekly #-480!

Build a Kotlin Multiplatform Project and Win a Trip to KotlinConf 2026 (blog.jetbrains.com) The Kotlin Multiplatform Contest 2025 invites students and graduates to build KMP projects for a chance to win a trip to KotlinConf 2026 in Munich.

Crafting Your KotlinConf Proposal: Expert Tips to Help You Stand Out (blog.jetbrains.com) JetBrains shares expert tips from KotlinConf speakers and committee members on crafting standout talk proposals for KotlinConf 2026.

Compose Multiplatform 1.10.0-alpha02 (github.com) Compose Multiplatform has a new 1.10.0-alpha02 version. Check out in this page if you want to follow the development

Koog × A2A: Building Connected AI Agents in Kotlin (blog.jetbrains.com) JetBrains introduces Koog × A2A, a Kotlin-based framework and cross-agent protocol that enable seamless communication and orchestration between AI agents across platforms.

[SPONSORED] Build your next on HubSpot with the flexibility of an all-new Developer Platform (developers.hubspot.com) The HubSpot Developer Platform gives you the tools to build, extend, and scale with confidence. Create AI-ready apps, integrations, and workflows faster with a unified platform designed to grow alongside your business.

Compose Compiler Stability Inference System (github.com) A comprehensive study by Jaewoong Eum of how the Compose compiler determines type stability for recomposition optimization.

The Country That Broke Kotlin (sam-cooper.medium.com) Sam Cooper recounts how a Turkish locale bug turned Kotlin’s simple case conversions into a five-year compiler saga, shaping today’s locale-agnostic string functions.

From Source to Sorcery - Kotlin Native’s Interop Magic (staticvar.dev) A deep, practical guide to Kotlin/Native C interop across macOS, Windows, and Linux, covering .def files, Gradle setup, memory safety, callbacks, and performance tuning.

Optimize your app battery using Android vitals wake lock metric (android-developers.googleblog.com) Google introduced a new Android Vitals metric that flags excessive partial wake lock usage, helping developers optimize battery performance and improve app quality.

AI Performance Monitoring for Kotlin apps (www.youtube.com) Kotzilla unveiled an AI-powered performance monitoring platform for Koin that proactively detects issues and integrates with coding assistants like Gemini and Copilot for self-healing Kotlin apps.

Checkout Kata in Kotlin - Part 3 - Functions vs Data (www.youtube.com) Duncan continues the Checkout Kata series exploring how data can parameterize behavior by refactoring pricing rules from functions to classes in Kotlin.

Gain a certification in coroutine expertise with Coroutines Mastery – structured & practical (coroutinesmastery.com) Coroutines Mastery is carefully structured: essential lessons and exercises you must complete, plus extra materials for those who want to go deeper. By completing 80% of required exercises and a final project (simple or ambitious), you can gain a certification from kt.academy - an official JetBrains partner—proof of advanced coroutine knowledge you can show on your CV or to your team. Join now

Kotlin Coroutines Best Practices — webinar to de-risk your async codebase (free) (webinar.kt.academy) 60 minutes to replace months of guesswork with coroutine rules that keep coroutines predictable: structured concurrency, cancellation safety, dispatcher usage, and hot flows done right. Recording included. Android and backend friendly. Bring questions; get clear answers live. Oct 14, choose: 13:00 or 18:00 CEST.

Tooltip (composables.com) Alex Styl just shipped a new Compose Unstyled component: Tooltip. Check it out in this link.

Chasm (github.com) Chasm 1.2.0 adds JS target support and Wide Arithmetic to its Kotlin Multiplatform WebAssembly runtime and Gradle plugin.

xemantic-kotlin-test (github.com) An AX-first (AI/Agent Experience) Kotlin multiplatform testing library with power-assert compatible assertions DSL and other testing goodies.

JetCo (github.com) JetCo is a ready-to-go Compose library building UI components for both Android and KMP).

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