In the next version of AGP

- R8 makes coroutines 2x faster

Hire Me About me and what I’m looking for.

Starting to look around for what's next. A bit of info on me and what I'm looking for chrishorner.codes/hire/

a pixelated image of a person 's face against a black background Alt: Vibe cat

Unexpected benefit of vibe coding

I've never been able to listen to music while coding, but now I can, because all I do is click allow over and over again

Stack traces in Compose  |  Jetpack Compose  |  Android Developers

Here's the new page about the new stack traces in Compose, in case you were wondering how it all is supposed to work: developer.android.com/develop/ui/c...

Something like this is just overhead because the original state is still used.

val visible by remember {
derivedStateOf { foo > 0 }
}

Text(foo, Modifier.graphicsLayer { alpha = if (visible) 1f else 0f } )

A common small mistake I see is correctly using derivedStateOf but still referencing the same state you used in the derived state elsewhere in the recomposition scope.

This release also adds support for Compose stack traces that work with minified apps! (requires R8 and Kotlin 2.3.0+)

Jetpack Navigation 3 is stable News and insights on the Android platform, developer tools, and events.

Jetpack Navigation 3 is stable! 🎉🎉🎉

Leaning into Jetpack Compose and the idea of combining smaller building blocks together really helped make Nav3 a much more flexible library that made it a joy to work on and hopefully for you to use as well!
android-developers.googleblog.com/2025/11/jetp...

How to debug and troubleshoot R8 optimizer | Spotlight Week YouTube video by Android Developers

So you enabled R8. Now is a good time to catch up on Keep Rules. @ajeshr.bsky.social talks you through configuration and troubleshooting.

www.youtube.com/watch?v=A0I6...

Gemini 3 is now available for AI assistance in Android Studio News and insights on the Android platform, developer tools, and events.

Try Gemini 3 in Android Studio!

android-developers.googleblog.com/2025/11/gemi...

Navigating the future with Jetpack Navigation 3 - Don Turner | droidcon London 2025 YouTube video by droidcon & fluttercon

My talk on Navigation 3 from #dcldn25 is live (very impressive publishing from the droidcon team!). www.youtube.com/watch?v=j1Oi...

Kotlin Multiplatform  |  Android Developers

🆕Yesterday we published updates on #KMP on
d.android.com/kmp!

We finally have the Jetpack libraries that are compatible with KMP .. and CMP!

Want to get into KMP? We have a course goo.gle/kmp-course. Pros can check their skills in the quiz at the end 😁.

If using Gemini in Android Studio is not your cup of tea, you can now use whatever model you want via API key! Now available in latest canaries developer.android.com/studio/gemin...

Would you like to work on Compose at Google (Mountain View CA office)?

Apply here and let's work together www.google.com/about/career...

We launched the Androidify app on Google Play!

Download it now, and create your very own custom Android bot ❤️

I've had loads of fun creating and testing the app - now you can too!

play.google.com/store/apps/d...

#Androidify

Thanks for the comments! Glad you like it! @mlykotom.dev wrote this

What’s new in the Jetpack Compose August ’25 release The Jetpack Compose 1.9 release introduces features like advanced shadow modifiers, new visibility modifiers, and enhanced rich styling capabilities.

This Compose release is stacked! There is something for everyone in here 🎁

android-developers.googleblog.com/2025/08/what...

Room (Kotlin Multiplatform)  |  Android Developers

Documentation 📃 for Room KMP just got upgraded.

It finally contains all the information on how to set it up, how to migrate from Android-only and even what features are (unfortunately) not available in KMP. Give it a go! 🟢

d.android.com/kotlin/multi...

Exploring PausableComposition internals in Jetpack Compose Explore the internals of the `PausableComposition` API in Jetpack Compose to improve UI performance by pre-composing elements during idle time in Android

Shreyas Patil wrote a nice article about Pausable Composition!

We have been working on designs for this feature for quite a while until Leland asked "Why don't we just skip?". Ben Tengrove did a prototype to prove it would work and voila a feature is born.

blog.shreyaspatil.dev/exploring-pa...

If you do, I would recommend using your own Gemini key to get a larger context (1m tokens) developer.android.com/studio/previ...

And yes, there is a rather generous free tier for the Gemini APIs, too ai.google.dev/gemini-api/d...

We call them bin chickens 😂

I was barely online during KotlinConf 2025, so here's my follow-up now.

Thank you so much everyone who joined us, in person or online. It was an incredible experience connecting with the community! ❤️

Here are some highlights of news below, as you've probably missed some! 🧵

Get Started With Kotlin Multiplatform  |  Android Developers Learn how to get started with Kotlin Multiplatform from two separate Android and iOS projects. In this codelab you will learn how to add a Kotlin Multiplatform (KMP) module to share code between Andro...

If you're new to #KMP we have 2 new codelabs:
1️⃣ Get started - goo.gle/kmp-get-started-codelab 2️⃣ Migrate Room - goo.gle/kmp-migrate-room-codelab

Try it out, let us know what you miss! 🤖🍏

Thanks to everyone that attended the code-along at #KotlinConf 😊

Demystify KMP builds and structure YouTube video by Android Developers

There are a lot of amazing KMP talks coming out right now but here is our talk from I/O!

Dustin and I give an update on our latest KMP releases and then explain the build setup for an Android KMP app.

youtu.be/gP5Y-ct6QXI?...

Tomorrow we will show how to measure and improve app performance at #GoogleIO. Make sure to join in.

Announcing Jetpack Navigation 3 Explore Jetpack Navigation 3, a new Compose-first navigation library with increased flexibility so Android developers to build robust experiences.

Today, we've released a brand new Jetpack library - Navigation3! A pure Compose, state based navigation library: android-developers.googleblog.com/2025/05/anno...

#io25 is a go! Excited to be here for the first time as a Googler! Find me at the Androidify booth for most of today 👀

I am looking forward to KotlinConf 2025. I hope to see you there.

Do drop by for the talk by @alanv and I on "APIs: How Hard Can They Be?"

#kotlinconf

Don't use Gson on Android. Use Kotlin Serialization instead. It relies on code generation instead of reflection. This helps avoid optimization related crashes and faster app performance.
github.com/google/gson?...
github.com/Kotlin/kotli...

But in general yes, it's a challenge for any xplat framework