Kotlin 1.6.20

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Kotlin·4 years ago · Apr 4, 2022, 06:42 AMDeprecationMay break your integrationAI-assisted summary

Summary

Added new compiler features: @JvmDefaultWithCompatibility annotation, programmatic annotation creation, experimental parallel compilation for the JVM backend, and SAM conversion support for serializable interfaces.
Introduced diagnostics and deprecations (private sealed constructors, invalid if‑as‑expression, builder inference improvements) and now require Xcode 13 for Kotlin/Native builds.
Fixed many JVM IR, Native, and FIR bugs that caused crashes, incorrect bytecode, and performance regressions.

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