v5.2.1

2025年10月09日

• Fix: Don't crash when calling Socket.shutdownOutput() or shutdownInput() on an SSLSocket
  on Android API 21 through 23. This method throws an UnsupportedOperationException, so we now
  catch that and close the underlying stream instead.

• Upgrade: [Okio 3.16.1][okio_3_16_1].

v5.2.0

2025年10月07日

• New: Support [HTTP 101] responses with Response.socket. This mechanism is only supported on
  HTTP/1.1. We also reimplemented our websocket client to use this new mechanism.

• New: The okhttp-zstd module negotiates [Zstandard (zstd)][zstd] compression with servers that
  support it. It integrates a new (unstable) [ZSTD-KMP] library, also from Square. Enable it like
  this:

  val client = OkHttpClient.Builder()
   .addInterceptor(CompressionInterceptor(Zstd, Gzip))
   .build()

• New: Support the QUERY HTTP method. You will need to set the Request.cacheUrlOverride
  property to cache calls made with this method. The RequestBody.sha256() may be helpful here;
  use it to compose a cache URL from the query body.

• New: Publish events when calls must wait to execute. EventListener.dispatcherQueueStart()
  is invoked when a call starts waiting, and dispatcherQueueEnd() is invoked when it's done.

• New: Request.toCurl() returns a copy-pasteable [curl] command consistent with Chrome’s and
  Firefox’s ‘copy as cURL’ features.

• New: Support [JPMS]. We replaced our Automatic-Module-Name metadata with proper
  module-info.java files.

• Fix: Recover gracefully when worker threads are interrupted. When we introduced fast fallback in
  OkHttp 5.0, we started using background threads while connecting. Sadly that code didn't handle
  interruptions well. This is now fixed.

• Upgrade: [Kotlin 2.2.20][kotlin_2_2_20].

• Upgrade: [Okio 3.16.0][okio_3_16_0].

v5.1.0

2025年07月07日

• New: Response.peekTrailers(). When we changed Response.trailers() to block instead of
  throwing in 5.0.0, we inadvertently removed the ability for callers to peek the trailers
  (by catching the IllegalStateException if they weren't available). This new API restores that
  capability.

• Fix: Don't crash on trailers() if the response doesn't have a body. We broke [Retrofit] users
  who read the trailers on the raw() OkHttp response, after its body was decoded.

v5.0.0

2025年07月02日

This is our first stable release of OkHttp since 2023. Here's the highlights if you're upgrading
from OkHttp 4.x:

OkHttp is now packaged as separate JVM and Android artifacts. This allows us to offer
platform-specific features and optimizations. If your build system handles [Gradle module metadata],
this change should be automatic.

MockWebServer has a new coordinate and package name. We didn’t like that our old artifact
depends on JUnit 4 so the new one doesn’t. It also has a better API built on immutable values. (We
intend to continue publishing the old okhttp3.mockwebserver artifact so there’s no urgency to
migrate.)

OkHttp now supports Happy Eyeballs ([RFC 8305][rfc_8305]) for IPv4+IPv6 networks. It attempts
both IPv6 and IPv4 connections concurrently, keeping whichever connects first.

We’ve improved our Kotlin APIs. You can skip the builder:

val request = Request(
 url = "https://cash.app/".toHttpUrl(),
)

OkHttp now supports [GraalVM].

Here’s what has changed since 5.0.0-alpha.17:

• Upgrade: [Okio 3.15.0][okio_3_15_0].
• Upgrade: [Kotlin 2.2.0][kotlin_2_2_0].
• Fix: Don't crash with a NoSuchMethodError when using OkHttp with the Sentry SDK.
• Fix: Retain the query data in the old okhttp3.mockwebserver.RecordedRequest.path property. We
  inadvertently changed this behavior when we introduced the mockwebserver3 API.

v5.0.0-alpha.17

2025年06月29日

This release stabilizes many APIs for the imminent OkHttp 5.0.0 release.

• New: TrailersSource, a public API for HTTP trailers. Production callers shouldn't need this
  as the API to read response trailers is unchanged. Testers may use this new stable API to
  supply trailers for a Response.

• New: Path.asRequestBody() is now a non-experimental API.

• New: FileDescriptor.toRequestBody() is now a non-experimental API.

• New: Stop using experimental coroutines APIs in our okhttp-coroutines artifact.

• Breaking: Move gzip from RequestBody to Request.Builder. This new API handles both
  compressing the request body and also adding the corresponding Content-Encoding header. Note
  that this function is sensitive to when it is called: the response body must be supplied before
  it can be compressed.

• Breaking: Remove AddressPolicy, AsyncDns, and ConnectionListener from the public API. We
  intend to ship a public API for these features, but we don't want to hold OkHttp 5.0.0 until
  those APIs are stable.

• Fix: Change MockWebServer.close() to cancel ongoing calls that are blocked on a delay.

• Upgrade: [Okio 3.13.0][okio_3_13_0].

This release also stabilizes many APIs in the mockwebserver3 artifact that's new in 5.0.

• Breaking: RecordedRequest.body is now nullable. Null is used when the request does not have a
  body.

• Breaking: RecordedRequest.chunkSizes is now nullable. Null is used when the request does not
  use chunked encoding. This is different from an empty list - that indicates the request is
  chunked but has no data.

• Breaking: Replace SocketPolicy with a new type, SocketEffect. It splits triggers (request
  start, response body, etc.) from effects (closing the socket, closing the stream, etc.).

• Breaking: Rename RecordedRequest.sequenceNumber to exchangeIndex and introduce
  connectionIndex on that type. These properties may be useful when testing features like
  connection reuse.

• Breaking: Replace our parameters-based JUnit 5 extension with a new annotation, @StartStop.
  Put this annotation on a MockWebServer property and the extension will start it before your
  test executes and stop it after it completes. No further configuration is required.

  @​StartStop val server = MockWebServer()

• Breaking: Don't automatically start MockWebServer after calls to accessors like port. Now
  these accessors will throw an IllegalStateException if the service has not yet been started.

• Breaking: Rename RecordedRequest.path to RecordedRequest.target. (This property is
  sometimes a path, but it can also be a path and query, or a full URL.)

• Breaking: Decompose the RecordedRequest.requestLine into three properties, method, target,
  and version. This better suits HTTP/2 where the request line had to be synthesized from
  component headers.

• Breaking: Change RecordedRequest.body from a mutable Buffer to an immutable ByteString.

• Breaking: Adopt Okio's new Socket interface for MockResponse.socketHandler.

Note that any Breaking changes above impact only APIs introduced in earlier 5.0.0-alpha releasees.
We don't break binary compatibility with non-alpha APIs.

v5.0.0-alpha.16

2025年05月29日

• Fix: The previous release would crash when running on Robolectric. We didn't anticipate
  running our Android artifact on the JVM platform!

v5.0.0-alpha.15

2025年05月28日

This release introduces separate JVM and Android artifacts. Until now, we've distributed OkHttp
as a JVM library that detects Android capabilities at runtime, but that doesn't offer
Android-specific APIs. With this release we're starting to publish OkHttp as an AAR for Android
users in addition to our existing JAR for JVM users.

This first Android-specific artifact adopts Android's assets mechanism to embed the public suffix
data. We will build more Android integration in future releases.

The okhttp-android artifact first introduced in 5.0.0-alpha.7 is no longer available:

• The AndroidAsyncDns class moved to the okhttp artifact.
• The AndroidLogging class is no longer necessary. LoggingEventListener and
  HttpLoggingInterceptor write to logcat by default.

The rest of this release is our highest-quality release yet. Though we continue to use the word
alpha in the version name, the only unstable thing in it is some non-final APIs tagged
@ExperimentalOkHttpApi. You can safely use this release in production.

• Fix: Attempt to read the response even if sending the request failed. This makes it possible
  to handle response statuses like HTTP/1.1 431 "Request Header Fields Too Large.

• Fix: Handle multiple 1xx responses.

• Fix: Address a performance bug in our internal task runner. We had a race condition that could
  result in it OkHttp starting a thread for each queued task, even when a single thread could run
  all of them.

• Fix: Address a performance bug in MultipartReader. We were scanning the entire input stream
  for a delimiter when we only needed to scan enough to return a result.

• Fix: Don't double-compress the public suffix database. OkHttp is usually distributed in a
  compressed file (like a JAR or APK), so compressing its internal data was redundant.

• Fix: Call ProxySelector.connectFailed() when a connection's initial TCP handshake fails.

• Fix: Change the signature of Dispatcher to accept a nullable ExecutorService. Changing this
  parameter to be non-null was an unintended signature change in OkHttp 4.0.

• New: EventListener.retryDecision() is called each time a request fails with an IOException.
  It notifies your listener if OkHttp will retry.

• New: EventListener.followUpDecision() is called each time a response is received. It notifies
  your listener if OkHttp has decided to make a follow-up request. Some common follow-ups are
  authentication challenges and redirects.

• New: Handy constants for Headers.EMPTY, RequestBody.EMPTY, and ResponseBody.EMPTY.

• New: OkHttp now calls StrictMode.noteSlowCall() when initializing TLS on Android. Use
  StrictMode to detect if your OkHttpClient is being initialized on the main thread.

• Upgrade: [Okio 3.12.0][okio_3_12_0].

• Upgrade: [Kotlin 2.1.21][kotlin_2_1_21].

• Upgrade: [kotlinx.coroutines 1.10.2][coroutines_1_10_2]. This is used by the optional
  okhttp-coroutines artifact.

• Upgrade: [AndroidX Startup 1.2.0][startup_1_2_0]. The Android variant of the okhttp artifact
  now depends on this. This is a new dependency.

• Upgrade: [AndroidX Annotation 1.9.1][annotation_1_9_1]. As above, the Android variant of the
  okhttp artifact now depends on this. This is also a new dependency.

v5.0.0-alpha.14

2024年04月17日

• Breaking: Move coroutines extensions to okhttp3.coroutines. Previously this artifact shared the
  okhttp3 package name with our core module, which is incompatible with the Java Platform Module
  System.

• Fix in okhttp-coroutines: Publish a valid artifact. The coroutines JAR file in 5.0.0-alpha.13
  was corrupt and should not be used.

v5.0.0-alpha.13

2024年04月16日

• Breaking: Tag unstable new APIs as @ExperimentalOkHttpApi. We intend to release OkHttp 5.0
  without stabilizing these new APIs first.

  Do not use these experimental APIs in modules that may be executed using a version of OkHttp
  different from the version that the module was compiled with. Do not use them in published
  libraries. Do not use them if you aren't willing to track changes to them.

• Breaking: Drop support for Kotlin Multiplatform.

  We planned to support multiplatform in OkHttp 5.0, but after building it, we weren't happy with
  the implementation trade-offs. We can't use our HTTP client engine on Kotlin/JS, and we weren't
  prepared to build a TLS API for Kotlin/Native.

  We'd prefer a multiplatform HTTP client API that's backed by OkHttp on Android and JVM, and
  other engines on other platforms. [Ktor] does this pretty well today!

• Breaking: Use kotlin.time.Duration in APIs like OkHttpClient.Builder.callTimeout(). This
  update also drops support for the DurationUnit functions introduced in earlier alpha releases
  of OkHttp 5.

• Breaking: Reorder the parameters in the Cache constructor that was introduced in 5.0.0-alpha.3.

• New: Request.Builder.cacheUrlOverride() customizes the cache key used for a request. This can
  be used to make canonical URLs for the cache that omit insignificant query parameters or other
  irrelevant data.

  This feature may be used with POST requests to cache their responses. In such cases the
  request body is not used to determine the cache key, so you must manually add cache-relevant
  data to the override URL. For example, you could add a request-body-sha256 query parameter so
  requests with the same POST data get the same cache entry.

• New: HttpLoggingInterceptor.redactQueryParams() configures the query parameters to redact
  in logs. For best security, don't put sensitive information in query parameters.

• New: ConnectionPool.setPolicy() configures a minimum connection pool size for a target
  address. Use this to proactively open HTTP connections.

  Connections opened to fulfill this policy are subject to the connection pool's
  keepAliveDuration but do not count against the pool-wide maxIdleConnections limit.

  This feature increases the client's traffic and the load on the server. Talking to your server's
  operators before adopting it.

• New in okhttp-android: HttpLoggingInterceptor.androidLogging() and
  LoggingEventListener.androidLogging() write HTTP calls or events to Logcat.

• New: OkHttpClient.webSocketCloseTimeout configures how long a web socket connection will wait
  for a graceful shutdown before it performs an abrupt shutdown.

• Fix: Honor RequestBody.isOneShot() in MultipartBody

• Fix in okhttp-coroutines: Don't leak response bodies in executeAsync(). We had a bug where
  we didn't call Response.close() if the coroutine was canceled before its response was
  returned.

• Upgrade: [Okio 3.9.0][okio_3_9_0].

• Upgrade: [Kotlin 1.9.23][kotlin_1_9_23].

• Upgrade: [Unicode® IDNA 15.1.0][idna_15_1_0]

v5.0.0-alpha.12

2023年12月17日

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.

• New: Support Java 21's virtual threads (‘OpenJDK Project Loom’). We changed OkHttp's internals
  to use Lock and Condition instead of synchronized for best resource utilization.

• New: Switch our Internationalized Domain Name (IDN) implementation to [UTS #​46 Nontransitional
  Processing][uts46]. With this fix, the ß code point no longer maps to ss. OkHttp now embeds
  its own IDN mapping table in the library.

• New: Prefer the client's configured precedence order for TLS cipher suites. (OkHttp used to
  prefer the JDK’s precedence order.) This change may cause your HTTP calls to negotiate a
  different cipher suite than before! OkHttp's defaults cipher suites are selected for good
  security and performance.

• New: ConnectionListener publishes events for connects, disconnects, and use of pooled
  connections.

• Fix: Immediately update the connection's flow control window instead of waiting for the
  receiving stream to process it.

  This change may increase OkHttp's memory use for applications that make many concurrent HTTP
  calls and that can receive data faster than they can process it. Previously, OkHttp limited
  HTTP/2 to 16 MiB of unacknowledged data per connection. With this fix there is a limit of 16 MiB
  of unacknowledged data per stream and no per-connection limit.

• Fix: Don't close a Deflater while we're still using it to compress a web socket message. We
  had a severe bug where web sockets were closed on the wrong thread, which caused
  NullPointerException crashes in Deflater.

• Fix: Don't crash after a web socket fails its connection upgrade. We incorrectly released
  the web socket's connections back to the pool before their resources were cleaned up.

• Fix: Don't infinite loop when a received web socket message has self-terminating compressed
  data.

• Fix: Don't fail the call when the response code is ‘HTTP 102 Processing’ or ‘HTTP 103 Early
  Hints’.

• Fix: Honor interceptors' changes to connect and read timeouts.

• Fix: Recover gracefully when a cached response is corrupted on disk.

• Fix: Don't leak file handles when a cache disk write fails.

• Fix: Don't hang when the public suffix database cannot be loaded. We had a bug where a failure
  reading the public suffix database would cause subsequent reads to hang when they should have
  crashed.

• Fix: Avoid InetAddress.getCanonicalHostName() in MockWebServer. This avoids problems if the
  host machine's IP address has additional DNS registrations.

• New: Create a JPMS-compatible artifact for JavaNetCookieJar. Previously, multiple OkHttp
  artifacts defined classes in the okhttp3 package, but this is forbidden by the Java module
  system. We've fixed this with a new package (okhttp3.java.net.cookiejar) and a new artifact,
  com.squareup.okhttp3:okhttp-java-net-cookiehandler. (The original artifact now delegates to
  this new one.)

  implementation("com.squareup.okhttp3:okhttp-java-net-cookiehandler:5.0.0-alpha.12")

• New: Cookie.sameSite determines whether cookies should be sent on cross-site requests. This
  is used by servers to defend against Cross-Site Request Forgery (CSRF) attacks.

• New: Log the total time of the HTTP call in HttpLoggingInterceptor.

• New: OkHttpClient.Builder now has APIs that use kotlin.time.Duration.

• New: mockwebserver3.SocketPolicy is now a sealed interface. This is one of several
  backwards-incompatible API changes that may impact early adopters of this alpha API.

• New: mockwebserver3.Stream for duplex streams.

• New: mockwebserver3.MockResponseBody for streamed response bodies.

• New: mockwebserver3.MockResponse is now immutable, with a Builder.

• New: mockwebserver3.RecordedRequest.handshakeServerNames returns the SNI (Server Name
  Indication) attribute from the TLS handshake.

• Upgrade: [Kotlin 1.9.21][kotlin_1_9_21].

• Upgrade: [Okio 3.7.0][okio_3_7_0].

v5.0.0-alpha.11

2022年12月24日

• New: Enable fast fallback by default. It's our implementation of Happy Eyeballs,
  [RFC 8305][rfc_8305]. Disable with OkHttpClient.Builder.fastFallback(false).
• Fix: Don't log response bodies for server-sent events.
• Fix: Skip early hints (status code 103) responses.
• Fix: Don't log sensitive headers in Request.toString().
• Fix: Don't crash when the dispatcher's ExecutorService is shutdown with many
  calls still enqueued.
• Upgrade: [GraalVM 22][graalvm_22].
• Upgrade: [Kotlin 1.7.10][kotlin_1_7_10].

v5.0.0-alpha.10

2022年06月26日

• Fix: Configure the multiplatform artifact (com.squareup.okhttp3:okhttp:3.x.x) to depend on the
  JVM artifact (com.squareup.okhttp3:okhttp-jvm:3.x.x) for Maven builds. This should work-around
  an issue where Maven doesn't interpret Gradle metadata.
• Fix: Make another attempt at supporting Kotlin 1.5.31 at runtime. We were crashing on
  DurationUnit which was a typealias in 1.5.x.
• Upgrade: [Okio 3.2.0][okio_3_2_0].

v5.0.0-alpha.9

2022年06月16日

• New: Enforce label length limits in URLs. HttpUrl now rejects URLs whose domains aren't valid.
  This includes overly-long domain names (longer than 253 characters), overly-long labels (more
  than 63 characters between dots), and empty labels.
• New: Don't include the Content-Length header in multipart bodies. Servers must delimit
  OkHttp's request bodies using the boundary only. (This change makes OkHttp more consistent with
  browsers and other HTTP clients.)
• New: Drop the tunnelProxy argument in MockWebServer.useHttps(). This change only impacts
  the OkHttp 5.x API which uses the mockwebserver3 package.
• Fix: Don't call toDuration() which isn't available in kotlin-stdlib 1.4.

v5.0.0-alpha.8

2022年06月08日

• Fix: Change how H2_PRIOR_KNOWLEDGE works with HTTP proxies. Previously OkHttp assumed the
  proxy itself was a prior knowledge HTTP/2 server. With this update, OkHttp attempts a CONNECT
  tunnel just as it would with HTTPS. For prior knowledge with proxies OkHttp's is now consistent
  with these curl arguments:

  curl \
   --http2-prior-knowledge \
   --proxy localhost:8888 \
   --proxytunnel \
   http://squareup.com/robots.txt
  

• Fix: Support executing OkHttp on kotlin-stdlib versions as old as 1.4. The library still builds
  on up-to-date Kotlin releases (1.6.21) but no longer needs that version as a runtime dependency.
  This should make it easier to use OkHttp in Gradle plugins.

• Fix: Don't start the clock on response timeouts until the request body is fully transmitted.
  This is only relevant for duplex request bodies, because they are written concurrently when
  reading the response body.

• New: MockResponse.inTunnel() is a new mockwebserver3 API to configure responses that are
  served while creating a proxy tunnel. This obsoletes both the tunnelProxy argument on
  MockWebServer and the UPGRADE_TO_SSL_AT_END socket option. (Only APIs on mockwebserver3
  are changed; the old okhttp3.mockwebserver APIs remain as they always have been.

v5.0.0-alpha.7

2022年04月26日

This release introduces new Kotlin-friendly APIs. When we migrated OkHttp from Java to Kotlin in
OkHttp 4.0, we kept our Java-first APIs. With 5.0 we're continuing to support Java and adding
additional improvements for Kotlin users. In this alpha we're excited to skip-the-builder for
requests and remove a common source of non-null assertions (!!) on the response body.

The alpha releases in the 5.0.0 series have production-quality code and an unstable API. We expect
to make changes to the APIs introduced in 5.0.0-alpha.X. These releases are safe for production use
and 'alpha' strictly signals that we're still experimenting with some new APIs. If you're eager for
the fixes or features below, please upgrade.

• New: Named and default parameters constructor for Request:

  val request = Request(
   url = "https://cash.app/".toHttpUrl(),
  )
  

• New: Response.body is now non-null. This was generally the case in OkHttp 4.x, but the Kotlin
  type declaration was nullable to support rare cases like the body on Response.cacheResponse,
  Response.networkResponse, and Response.priorResponse. In such cases the body is now
  non-null, but attempts to read its content will fail.

• New: Kotlin-specific APIs for request tags. Kotlin language users can lookup tags with a type
  parameter only, like request.tag<MyTagClass>().

• New: MockWebServer has improved support for HTTP/1xx responses. Once you've migrated to the new
  mockwebserver3 package, there's a new field, MockResponse.informationalResponses.

• Fix: Don't interpret trailers as headers after an HTTP/100 response. This was a bug only when
  the HTTP response body itself is empty.

• Fix: Don't crash when a fast fallback call has both a deferred connection and a held connection.

• Fix: OkHttpClient no longer implements Cloneable. It never should have; the class is
  immutable. This is left over from OkHttp 2.x (!) when that class was mutable. We're using the
  5.x upgrade as an opportunity to remove very obsolete APIs.

• Fix: Recover gracefully when Android's NativeCrypto crashes with "ssl == null". This occurs
  when OkHttp retrieves ALPN state on a closed connection.

• Upgrade: [Kotlin 1.6.21][kotlin_1_6_21].

• Upgrade: [Okio 3.1.0][okio_3_1_0].

v5.0.0-alpha.6

2022年03月14日

• Fix: Don't attempt to close pooled connections. We saw occasional fast fallback calls crash in
  the previous alpha due to an unexpected race.

v5.0.0-alpha.5

2022年02月21日

• Fix: Don't include [Assertk][assertk] in OkHttp's production dependencies. This regression was
  introduced in the 5.0.0-alpha.4 release.
• Fix: Don't ask Dns implementations to resolve strings that are already IP addresses.
• Fix: Change fast fallback to race TCP handshakes only. To avoid wasted work, OkHttp will not
  attempt multiple TLS handshakes for the same call concurrently.
• Fix: Don't crash loading the public suffix database in GraalVM native images. The function
  HttpUrl.topPrivateDomain() uses a resource file to identify private domains, but we didn't
  include this file on GraalVM.

v5.0.0-alpha.4

2022年02月01日

This release introduces fast fallback to better support mixed IPv4+IPv6 networks. Fast fallback
is what we're calling our implementation of Happy Eyeballs, [RFC 8305][rfc_8305]. With this
feature OkHttp will attempt both IPv6 and IPv4 connections concurrently, keeping whichever connects
first. Fast fallback gives IPv6 connections a 250 ms head start so IPv6 is preferred on networks
where it's available.

To opt-in, configure your OkHttpClient.Builder:

OkHttpClient client = new OkHttpClient.Builder()
 .fastFallback(true)
 .build();

• New: Change the build from Kotlin-JVM to Kotlin-multiplatform (which includes JVM). Both
  native and JavaScript platforms are unstable preview releases and subject to
  backwards-incompatible changes in forthcoming releases.
• Fix: Don't crash loading the public suffix database resource in obfuscated builds.
• Fix: Don't silently ignore calls to EventSource.cancel() made from
  EventSourceListener.onOpen().
• Fix: Enforce the max intermediates constraint when using pinned certificates with Conscrypt.
  This impacts Conscrypt when the server's presented certificates form both a trusted-but-unpinned
  chain and an untrusted-but-pinned chain.
• Upgrade: [Kotlin 1.6.10][kotlin_1_6_10].

v5.0.0-alpha.3

2021年11月22日

• Fix: Change Headers.toString() to redact authorization and cookie headers.
• Fix: Don't do DNS to get the hostname for RecordedRequest.requestUrl. This was doing a DNS
  lookup for the local hostname, but we really just wanted the Host header.
• Fix: Don't crash with a InaccessibleObjectException when detecting the platform trust manager
  on Java 17+.
• Fix: Don't crash if a cookie's value is a lone double quote character.
• Fix: Don't crash when canceling an event source created by EventSources.processResponse().
• New: Cache now has a public constructor that takes an [okio.FileSystem]. This should make it
  possible to implement decorators for cache encryption or compression.
• New: Cookie.newBuilder() to build upon an existing cookie.
• New: Use TLSv1.3 when running on JDK 8u261 or newer.
• New: QueueDispatcher.clear() may be used to reset a MockWebServer instance.
• New: FileDescriptor.toRequestBody() may be particularly useful for users of Android's Storage
  Access Framework.
• Upgrade: [Kotlin 1.5.31][kotlin_1_5_31].
• Upgrade: [Okio 3.0.0][okio_3_0_0].