## Changelog since v1.17.3

## Changes by Kind

### API Change

- Fixes a regression with clients prior to 1.15 not being able to update podIP in pod status, or podCIDR in node spec, against >= 1.16 API servers ([#88505](https://github.com/kubernetes/kubernetes/pull/88505), [@liggitt](https://github.com/liggitt)) [SIG Apps and Network]

### Other (Bug, Cleanup or Flake)

* Added pods-per-core to kubelet. [#25762](https://github.com/kubernetes/kubernetes/pull/25762) ([#25813](https://github.com/kubernetes/kubernetes/pull/25813), [@rrati](https://github.com/rrati))
* promote sourceRange into service spec ([#25826](https://github.com/kubernetes/kubernetes/pull/25826), [@freehan](https://github.com/freehan))

        "R0.50");

    limiter.setRate(Double.POSITIVE_INFINITY);
    limiter.acquire();
    limiter.acquire();
    limiter.acquire();
    assertEvents("R0.50", "R0.00", "R0.00"); // we repay the last request (.5sec), then back to +oo
  }

  /** https://github.com/google/guava/issues/1791 */
  public void testInfinity_bustyTimeElapsed() {
    RateLimiter limiter = RateLimiter.create(Double.POSITIVE_INFINITY, stopwatch);

        "R0.50");

    limiter.setRate(Double.POSITIVE_INFINITY);
    limiter.acquire();
    limiter.acquire();
    limiter.acquire();
    assertEvents("R0.50", "R0.00", "R0.00"); // we repay the last request (.5sec), then back to +oo
  }

  /** https://github.com/google/guava/issues/1791 */
  public void testInfinity_bustyTimeElapsed() {
    RateLimiter limiter = RateLimiter.create(Double.POSITIVE_INFINITY, stopwatch);

}

// compareSignatureV4 returns true if and only if both signatures
// are equal. The signatures are expected to be HEX encoded strings
// according to the AWS S3 signature V4 spec.
func compareSignatureV4(sig1, sig2 string) bool {
	// The CTC using []byte(str) works because the hex encoding
	// is unique for a sequence of bytes. See also compareSignatureV2.

     * constructor have type parameters, the class parameters are prepended before those of the
     * constructor's. This is an arbitrary rule since no existing language spec mandates one way or
     * the other. From the declaration syntax, the class type parameter appears first, but the call
     * syntax may show up in opposite order such as {@code new <A>Foo<B>()}.
     */
    @Override

  - [beta] `kube-apiserver` now publishes a swagger 2.0 spec in addition to a swagger 1.2 spec ([kubernetes/features#53](https://github.com/kubernetes/enhancements/issues/53))
  - [beta] Server-side garbage collection is enabled by default. See [user-guide](http://kubernetes.io/docs/user-guide/garbage-collection/)

///

### Checking the current `root_path` { #checking-the-current-root-path }

You can get the current `root_path` used by your application for each request, it is part of the `scope` dictionary (that's part of the ASGI spec).

Here we are including it in the message just for demonstration purposes.

{* ../../docs_src/behind_a_proxy/tutorial001.py hl[8] *}

Then, if you start Uvicorn with:

<div class="termy">

    socket: MockWebServerSocket,
    request: RecordedRequest,
    response: MockResponse,
  ) {
    val key = request.headers["Sec-WebSocket-Key"]
    val webSocketResponse =
      response
        .newBuilder()
        .setHeader("Sec-WebSocket-Accept", WebSocketProtocol.acceptHeader(key!!))
        .build()
    writeHttpResponse(socket, webSocketResponse)

That execution must be consistent with the <i>sequenced before</i> relation,
defined as the partial order requirements set out by the <a href="/ref/spec">Go language specification</a>
for Go's control flow constructs as well as the <a href="/ref/spec#Order_of_evaluation">order of evaluation for expressions</a>.
</p>

<p>
A Go <i>program execution</i> is modeled as a set of goroutine executions,