Monday, June 5, 2023

Introducing Dart 3 and Flutter 3.10: A Leap Forward in Performance and Design

Google has recently unveiled Dart 3 and Flutter 3.10, bringing exciting updates to the programming language and the accompanying UI toolkit. With significant improvements in performance, design enhancements, and expanded platform support, developers can now create stunning and high-performing applications across mobile, web, and desktop platforms. In this blog post, we will explore the key features of Dart 3 and Flutter 3.10 and their impact on the development landscape.

Dart 3 – Embracing Sound Null Safety and Language Enhancements Dart 3 introduces sound null safety, a groundbreaking feature that eliminates runtime errors caused by null values. This not only enhances the stability of Dart applications but also leads to smaller compiled output and improved performance. With over 99% of packages on the dev package manager already supporting null safety, developers can confidently migrate their projects to the latest version.

In addition to sound null safety, Dart 3 brings a range of new language features, including structured data with records, destructuring, and pattern matching. These additions empower developers to write more concise and expressive code, making data manipulation and processing more efficient than ever. Furthermore, abstract data types provide modern programming capabilities, enabling developers to build robust and scalable applications with ease.

WebAssembly (Wasm) Compilation Preview in Dart 3 One of the most anticipated previews in Dart 3 is the WebAssembly (Wasm) compilation. By compiling Dart to the Wasm binary format, developers can leverage faster loading times and improved performance for web applications. While this feature is still in preview, it opens up new possibilities for creating high-performance web experiences. To use Wasm compilation, developers need a browser that supports WasmGC.

Additionally, Dart is actively working on interoperability with Java and Kotlin on Android, as well as Objective-C and Swift on macOS/iOS. This further expands the reach of Dart and enables developers to seamlessly integrate Dart code with existing codebases written in other languages.

Flutter 3.10 – Elevating Design and Platform Support

Flutter 3.10 enriches the Material design experience with enhanced support for the Material 3 widget toolkit. Developers can now leverage algorithmic color scheme generation in Material 3, resulting in visually appealing and harmonious interfaces. The update also introduces several improvements for building macOS and iOS apps, such as spell-checking support in the editable text widget, a new check box widget, and wireless debugging capabilities.

The default renderer on iOS, the Impeller renderer, has undergone enhancements since Flutter 3.7, promising smoother animations and more consistent performance. This ensures that Flutter apps deliver a delightful user experience on Apple devices.

Furthermore, Flutter 3.10 introduces a JNI bridge to Jetpack libraries written in Kotlin, enabling seamless integration and direct access to Jetpack libraries from Dart. This eliminates the need for external plugins and simplifies the development process.

With the launch of Dart 3 and Flutter 3.10, Google continues to push the boundaries of app development by providing developers with powerful tools and frameworks. The sound null safety feature in Dart 3 enhances code stability and performance, while new language features open up opportunities for more expressive and efficient programming. Flutter 3.10’s improvements in Material design and expanded platform support ensure that developers can create visually stunning and performant applications across multiple platforms.

As Google’s commitment to Flutter’s core characteristics—beauty, speed, productivity, portability, and universal availability—remains unwavering, developers can look forward to an exciting future of building cross-platform apps that push the boundaries of user experience.

To get started with Dart 3 and Flutter 3.10, refer to the official installation instructions available at and

Happy coding and enjoy the power of Dart and Flutter’s latest updates!