## Supported Versions

Security updates are applied to the latest feature release (1.x) of the compiler, standard library, and build plugins.

A fix will be shipped with the next incremental (1.x.y) or bug fix release (1.x.yz).

All fixes are also applied to the master branch to be included in all upcoming releases.

## Reporting a Vulnerability

# OWNER_LIST: "Kotlin Compiler Core"
# OWNER_LIST: "Kotlin Build Infrastructure" "Kotlin Build Tools"
# OWNER_LIST: "Kotlin Performance QA"
# OWNER_LIST: "Kotlin IDE Analysis Core"
# OWNER_LIST: "Kotlin Release"
# OWNER_LIST: "Kotlin Apple Ecosystem"
# OWNER_LIST: "Kotlin Language Evolution"
# OWNER_LIST: "Kotlin in Fleet"
# OWNER_LIST: Compose
# OWNER_LIST: Mikhail.Glukhikh Dmitriy.Novozhilov Kirill.Rakhman

To build Kotlin/Native, see
[kotlin-native/README.md](kotlin-native/README.md#building-from-source).

## <a name="working-in-idea"></a> Working with the project in IntelliJ IDEA

It is recommended to use the latest released version of Intellij IDEA (Community or Ultimate Edition). You can download IntelliJ IDEA [here](https://www.jetbrains.com/idea/download).

- [`KT-61668`](https://youtrack.jetbrains.com/issue/KT-61668) Put expect/actual diagnostics introduced in 1.9.20 release under 1.9 Language Version
- [`KT-61725`](https://youtrack.jetbrains.com/issue/KT-61725) KMP: Annotation matching requirement for expect/actual leads to errors for annotations with `@OptionalExpectation`

        IncompatibleClassImpl(
            firDiagnostic.a,
            firDiagnostic.b,
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.PRE_RELEASE_CLASS) { firDiagnostic ->
        PreReleaseClassImpl(
            firDiagnostic.a,
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }