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Nixie 1.2.5

Version 1.2.5 improves the hot send path and adds admission-aware request/response.

  • Allocation-free actor wakeups. Runners use ThreadPool.UnsafeQueueUserWorkItem and do not capture the sender's ExecutionContext.
  • TryAsk. Reply-capable references check inbox admission before allocating reply state for rejected work.
  • Execution context isolation. Handlers run on the default context instead of observing a timing-dependent sender context.
if (worker.TryAsk(request, out Task<Response?>? reply))
{
    Response? response = await reply;
}
else
{
    // Inbox at capacity or runner shut down. Nothing was enqueued.
}

Control messages remain exempt from inbox bounds. If shutdown races with a successful admission, the returned reply task completes as canceled rather than hanging.

Read the full release notes on GitHub