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Why isn't it possible to pass a charset to `ByteArray.decodeToString` with kotlin 1.3.40?

If charsets are JVM-only, then that's probably why. The new functions in kotlin 1.3.40 are platform-agnostic

For JVM specifically I think this can lead to confusion as with encoding/decoding it will take the system default.

Naming it `ByteArray.decodeToUtf8String` is probably more clear for every platform

Than it will not allow to evolve this API in future

If one day common will have support of different encodings it will be just added as param with default UTF8 value

also many existing Kotlin API already use UTF8 as default

We plan to provide common `decodeToString` with `Charset` in kotlinx-io library