*  **OkHttp has an experimental new API for tracking metrics.** The new
    `EventListener` API is designed to help developers monitor HTTP requests'
    size and duration. This feature is an unstable preview: the API is subject
    to change, and the implementation is incomplete. This is a big new API we
    are eager for feedback.

 *  New: Support ALPN via Google Play Services' Dynamic Security Provider. This

        PreReleaseClassImpl(
            firDiagnostic.a,
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.IR_WITH_UNSTABLE_ABI_COMPILED_CLASS) { firDiagnostic ->
        IrWithUnstableAbiCompiledClassImpl(
            firDiagnostic.a,
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }

- [`KT-59004`](https://youtrack.jetbrains.com/issue/KT-59004) Kotlin JS 1.9.0-Beta, yarn.lock is unstable in multi module project

    ```

    </div>

!!! warning
    Remember to remove the `--reload` option if you were using it.

    The `--reload` option consumes much more resources, is more unstable, etc.

    It helps a lot during **development**, but you **shouldn't** use it in **production**.

## Hypercorn with Trio

  // MatchConstraints specifies what resources this policy is designed to validate.
  // The AdmissionPolicy cares about a request if it matches _all_ Constraints.
  // However, in order to prevent clusters from being put into an unstable state that cannot be recovered from via the API
  // ValidatingAdmissionPolicy cannot match ValidatingAdmissionPolicy and ValidatingAdmissionPolicyBinding.
  // Required.
  optional MatchResources matchConstraints = 2;

        val bindingContext = analysisContext.analyze(expression)
        val stableSmartCasts = bindingContext[BindingContext.SMARTCAST, expression]
        val unstableSmartCasts = bindingContext[BindingContext.UNSTABLE_SMARTCAST, expression]

        return when {
            stableSmartCasts != null -> {
                val type = stableSmartCasts.getKtType() ?: return null
                KtSmartCastInfo(type, true, token)

    ```

    </div>

!!! warning
     N'oubliez pas de supprimer l'option `--reload` si vous l'utilisiez.

     L'option `--reload` consomme beaucoup plus de ressources, est plus instable, etc.

     Cela aide beaucoup pendant le **développement**, mais vous **ne devriez pas** l'utiliser en **production**.

## Hypercorn avec Trio

Starlette et **FastAPI** sont basés sur

## Version 5.0.0-alpha.12

_2023-12-17_

We took too long to cut this release and there's a lot of changes in it. We've been busy.

Although this release is labeled _alpha_, the only unstable thing in it is our new APIs. This
release has many critical bug fixes and is safe to run in production. We're eager to stabilize our
new APIs so we can get out of alpha.

 *  **Fix: Lazily initialize the response cache.** This avoids strict mode
    warnings when initializing OkHttp on Android‘s main thread.

 *  **Fix: Disable ALPN on Android 4.4.** That release of the feature was
    unstable and prone to native crashes in the underlying OpenSSL code.
 *  Fix: Don't send both `If-None-Match` and `If-Modified-Since` cache headers
    when both are applicable.
 *  Fix: Fail early when a port is out of range.