New Article: Updating your Android Gradle Files with the New Kotlin DSL

Published: 30 April 2025

Hey friend,

I just published a new article that covers a major change introduced in Flutter 3.29—one that didn’t get much attention:

New Flutter projects now use the Kotlin DSL for Android Gradle files.

If your app relies on custom Gradle configs—like flavors, code signing, Firebase, or build tweaks—this is something you’ll want to know.

Here's what's inside:

  • What changed: A quick overview of the new .kts files.
  • Kotlin vs Groovy syntax: Key differences and how to spot them.
  • How to update your setup: Signing configs, flavors, Firebase plugins, and more.

The article contains a bunch of code snippets that didn't render well as an email, so you can read it on my site instead:

👉 Kotlin DSL in Flutter 3.29: How to Update Your Android Gradle Files

Kotlin DSL in Flutter 3.29: How to Update Your Android Gradle Files

If you’re shipping apps professionally, this is the kind of stuff I cover in my Flutter in Production course—flavors, code signing, Firebase, CI, and more.

Flutter in Production modules

The course is currently 50% off during my spring sale—only $99 instead of $199:

👉 Flutter in Production

It’ll save you hours of config headaches with detailed checklists, step-by-step guides, and reference code you can reuse in your own projects.

If you're planning to ship some apps this year, now’s the time to grab it.

Happy coding!

Andrea