unfinished release note work.

To prepare the release notes for a release, run `relnote generate`.
That will merge the `.md` files in `next` into a single file.
Atomically (as close to it as possible) add that file to `_content/doc` directory
of the website repository and remove the `doc/next` directory in this repository.

To begin the next release development cycle, populate the contents of `next`

        response.setContentCache(cache);

        // Should not throw exception
        response.close();
    }

    @Test
    public void testCloseWithoutContentCache() throws IOException {
        CurlResponse response = new CurlResponse();

        // Should not throw exception
        response.close();
    }

    @Test
    public void testHeadersCaseInsensitive() {

        }
        FileOutputStream outstr = new FileOutputStream(dest);
        try {
            transformer.transform(new StreamSource(source), new StreamResult(outstr));
        } finally {
            outstr.close();
        }
    }

 */
class ApacheHttpClientTest {
  private val httpClient = HttpClients.createDefault()

  @StartStop
  private val server = MockWebServer()

  @AfterEach
  fun tearDown() {
    httpClient.close()
  }

  @Test
  fun get() {
    server.enqueue(
      MockResponse
        .Builder()
        .body("hello, Apache HttpClient 5.x")
        .build(),
    )

	// The first definition of B has an argument, the second doesn't. Because we let
	// text/scanner strip the blanks for us, this is extremely rare, hard to fix, and not worth it.
	return s.pos
}

func (s *Slice) Close() {

		},
		{
			name:       "lower-case-is",
			query:      `select * from s3object[*] as s where s.request.header['User-Agent'] is not null`,
			wantResult: `{"request":{"uri":"/1","header":{"User-Agent":"test"}}}`,

the <code>print</code>.
</p>

<p class="rule">
The closing of a channel is synchronized before a receive that returns a zero value
because the channel is closed.
</p>

<p>
In the previous example, replacing
<code>c &lt;- 0</code> with <code>close(c)</code>
yields a program with the same guaranteed behavior.
</p>

<p class="rule">
A receive from an unbuffered channel is synchronized before the completion of

    operation ->> dep_func: Return from path operation
    Note over dep_func: Run code after yield
    Note over dep_func: ✅ Dependency closed
    dep_func ->> client: Send response to client
    Note over client: Response sent
    Note over dep_req: Run code after yield
    Note over dep_req: ✅ Dependency closed
```

    actions += { stream ->
      stream.sink.writeUtf8(s)
      stream.sink.flush()
      responseSent.countDown()
    }
  }

  fun exhaustResponse() =
    apply {
      actions += { stream -> stream.sink.close() }
    }

  fun sleep(
    duration: Long,
    unit: TimeUnit,
  ) = apply {
    actions += { Thread.sleep(unit.toMillis(duration)) }
  }

  override fun handle(socket: Socket) {

		fillReq:   make(chan struct{}),
		fillReady: make(chan int64),
	}

	go func() {
		var rpos int64 // total bytes read into buffer

		defer func() {
			atomic.StoreInt64(&sr.end, rpos)
			close(sr.fillReady)
		}()

		for range sr.fillReq {
		scan:
			n, err := r.Read(sr.nbuf[:])

			if n == 0 {
				switch err {
				case io.EOF: // reader is exhausted
					return