Today we’re announcing Dart 2.13, featuring type aliases — currently our second most requested language feature. Dart 2.13 also includes improved

Announcing Dart 2.13

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2021-05-24 03:00:03

Today we’re announcing Dart 2.13, featuring type aliases — currently our second most requested language feature. Dart 2.13 also includes improved Dart FFI and better performance, and we have new Docker Official Images for Dart. This post gives an update on the null safety feature introduced in 2.12, discusses the new 2.13 features, has some exciting news about Docker and Google Cloud support for Dart backends, and previews some changes that you can expect to see in future releases.

We launched sound null safety in March in the Dart 2.12 release. Null safety is Dart’s latest major productivity feature, intended to help you avoid null errors — a class of bugs that are often hard to spot. With that launch we encouraged package publishers to start migrating shared packages on pub.dev to null safety.

We’ve been extremely pleased to see how quickly null safety has been adopted! Just a few months after launch, 93% of the top-500 most popular packages on pub.dev already support null safety. We’d like to extend our sincere thanks to all package developers for doing this work so quickly, and for helping the entire ecosystem to move forward!

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