// shouldUseASCIISet returns whether to use the lookup table optimization.
// The threshold of 8 bytes balances initialization cost against per-byte
// search cost, performing well across all charset sizes.
//
// More complex heuristics (e.g., different thresholds per charset size)
// add branching overhead that eats away any theoretical improvements.
func shouldUseASCIISet(bufLen int) bool {
	return bufLen > 8
}

* The `experimental_relax_shapes` heuristic for `tf.function` has been deprecated and replaced with `reduce_retracing` which encompasses broader heuristics to reduce the number of retraces (see below)

## Major Features and Improvements

*   `tf.keras`:

    val response = get(server.url("/"))
    assertThat(response.body.string()).isEqualTo("A")
    assertThat(response.header("Warning")).isEqualTo(
      "113 HttpURLConnection \"Heuristic expiration\"",
    )
  }

  @Test
  fun noDefaultExpirationForUrlsWithQueryString() {
    server.enqueue(
      MockResponse
        .Builder()