A modern programming language that makes developers happier.

kotlinlang

Looking at the changelog, you can not see many new things between 1.3.21 and 1.3.30. It's mostly a bugfix release. So why `kotlin.js` is more than 10% larger (+200KB)? This has a significant impact on the size of the output files for Kotlin/JS apps.

Mostly it's new operations for unsigned arrays. Do you use any tool to strip out unused code?

Yes, I'm using DCE and webpack minification, but the size increase is still noticeable.

It could be also the size of serialization-runtime ...

When not used by a simple app, the previous version of `kotlinx-serialization-runtime-js.js` was reduced by DCE to 10KB, but the current version for the same app is reduced to 165KB.

So it's probably the serialization runtime "fault".