NewYour coding agent can read the release notes before it upgrades.Set up the MCP server →
Maven Central
Square’s meticulous HTTP client for Java and Kotlin.
Last release 3 years ago
no release in 18 months
Too new to tell
only 2 dated releases
Unknown
no stable releases
Nothing withdrawn
no release was ever pulled
4 years old
2 releases · first in 2022
One column per quarter.
We took too long to cut this release and there's a lot of changes in it. We've been busy.
2023-12-17
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].
New: Enable fast fallback by default. It's our implementation of Happy Eyeballs, [RFC 8305][rfc_8305]. Disable with OkHttpClient.Builder.fastFallback(
2022-12-24
OkHttpClient.Builder.fastFallback(false).Request.toString().ExecutorService is shutdown with many
calls still enqueued.Your coding agent can read these notes before it upgrades. Set up the MCP server →