Flutter 3.38 and Dart 3.10: The Features Transforming Mobile Development

Google has launched Flutter 3.38 and Dart 3.10, an update that consolidates Flutter as the leading platform for cross-platform development. This version brings significant improvements in usability, development tools, and performance.

Hot Reload Comes to Web

One of the most anticipated features is finally available: hot reload on web no longer requires an experimental flag. This means developers can see changes in real-time while developing web applications, matching the experience we already had on mobile.

The Widget Previewer, introduced as experimental in version 3.35, now integrates better with VS Code and IntelliJ (including Android Studio). This tool allows visualizing widgets in isolation, significantly accelerating the interface design process.

Full Support for iOS 26 and macOS 26

Flutter 3.38 offers full support for:

iOS 26
Xcode 26
macOS 26

Important: This version requires migration to the new UIScene lifecycle mandated by Apple.

New Dart Features

The Dart language now supports dot shorthands syntax, allowing more concise code:

// Before
final color = Colors.blue;

// Now with shorthands
final color = .blue;

AI Integration

Flutter continues its integration with AI tools:

New Flutter Flight Plans series for building apps with Flutter, Firebase, and Gemini
Flutter GenUI SDK for creating dynamic interfaces that adapt based on user intent

Accessibility Improvements

New SliverSemantics widget
Better default behaviors
Completely renovated accessibility documentation

What Does This Mean for Your Company?

If you’re developing enterprise mobile applications, Flutter 3.38 offers:

Faster development with hot reload on web
Better design experience with Widget Previewer
Guaranteed compatibility with the latest iOS versions
AI readiness with new integration tools

Are you considering Flutter for your next enterprise application? Let’s talk about how we can help you leverage these new features.