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CHANGELOG.md

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Change Log

Version 4.2.2

2019-10-06

  • Fix: When closing a canceled HTTP/2 stream, don't send the END_STREAM flag. This could cause the server to incorrectly interpret the stream as having completed normally. This is most useful when a request body needs to cancel its own call.

Version 4.2.1

2019-10-02

  • Fix: In 4.1.0 we introduced a performance regression that prevented connections from being pooled in certain situations. We have good test coverage for connection pooling but we missed this because it only occurs if you have proxy configured and you share a connection pool among multiple OkHttpClient instances.

    This particularly-subtle bug was caused by us assigning each OkHttpClient instance its own NullProxySelector when an explicit proxy is configured. But we don't share connections when the proxy selectors are different. Ugh!

Version 4.2.0

2019-09-10

  • New: API to decode a certificate and private key to create a HeldCertificate. This accepts a string containing both a certificate and PKCS #8-encoded private key.

    val heldCertificate = HeldCertificate.decode("""
    |-----BEGIN CERTIFICATE-----
    |MIIBYTCCAQegAwIBAgIBKjAKBggqhkjOPQQDAjApMRQwEgYDVQQLEwtlbmdpbmVl
    |cmluZzERMA8GA1UEAxMIY2FzaC5hcHAwHhcNNzAwMTAxMDAwMDA1WhcNNzAwMTAx
    |MDAwMDEwWjApMRQwEgYDVQQLEwtlbmdpbmVlcmluZzERMA8GA1UEAxMIY2FzaC5h
    |cHAwWTATBgcqhkjOPQIBBggqhkjOPQMBBwNCAASda8ChkQXxGELnrV/oBnIAx3dD
    |ocUOJfdz4pOJTP6dVQB9U3UBiW5uSX/MoOD0LL5zG3bVyL3Y6pDwKuYvfLNhoyAw
    |HjAcBgNVHREBAf8EEjAQhwQBAQEBgghjYXNoLmFwcDAKBggqhkjOPQQDAgNIADBF
    |AiAyHHg1N6YDDQiY920+cnI5XSZwEGhAtb9PYWO8bLmkcQIhAI2CfEZf3V/obmdT
    |yyaoEufLKVXhrTQhRfodTeigi4RX
    |-----END CERTIFICATE-----
    |-----BEGIN PRIVATE KEY-----
    |MEECAQAwEwYHKoZIzj0CAQYIKoZIzj0DAQcEJzAlAgEBBCA7ODT0xhGSNn4ESj6J
    |lu/GJQZoU9lDrCPeUcQ28tzOWw==
    |-----END PRIVATE KEY-----
    """.trimMargin())
val handshakeCertificates = HandshakeCertificates.Builder()
    .heldCertificate(heldCertificate)
    .build()
val server = MockWebServer()
server.useHttps(handshakeCertificates.sslSocketFactory(), false)

    Get these strings with HeldCertificate.certificatePem() and privateKeyPkcs8Pem().

  • Fix: Handshake now returns peer certificates in canonical order: each certificate is signed by the certificate that follows and the last certificate is signed by a trusted root.

  • Fix: Don't lose HTTP/2 flow control bytes when incoming data races with a stream close. If this happened enough then eventually the connection would stall.

  • Fix: Acknowledge and apply inbound HTTP/2 settings atomically. Previously we had a race where we could use new flow control capacity before acknowledging it, causing strict HTTP/2 servers to fail the call.

Version 4.1.1

2019-09-05

  • Fix: Don't drop repeated headers when validating cached responses. In our Kotlin upgrade we introduced a regression where we iterated the number of unique header names rather than then number of unique headers. If you're using OkHttp's response cache this may impact you.

Version 4.1.0

2019-08-12

  • OkHttp's new okhttp-brotli module implements Brotli compression. Install the interceptor to enable Brotli compression, which compresses 5-20% smaller than gzip.

    val client = OkHttpClient.Builder()
    .addInterceptor(BrotliInterceptor)
    .build()

    This artifact has a dependency on Google's Brotli decoder (95 KiB).

  • New: EventListener.proxySelectStart(), proxySelectEnd() events give visibility into the proxy selection process.

  • New: Response.byteString() reads the entire response into memory as a byte string.

  • New: OkHttpClient.x509TrustManager accessor.

  • New: Permit new WebSocket response codes: 1012 (Service Restart), 1013 (Try Again Later), and 1014 (invalid response from the upstream).

  • New: Build with Kotlin 1.3.41, BouncyCastle 1.62, and Conscrypt 2.2.1.

  • Fix: Recover gracefully when a coalesced connection immediately goes unhealthy.

  • Fix: Defer the SecurityException when looking up the default proxy selector.

  • Fix: Don't use brackets formatting IPv6 host names in MockWebServer.

  • Fix: Don't permit cache iterators to remove entries that are being written.

Version 4.0.1

2019-07-10

  • Fix: Tolerate null-hostile lists in public API. Lists created with List.of(...) don't like it when you call contains(null) on them!
  • Fix: Retain binary-compatibility in okhttp3.internal.HttpHeaders.hasBody(). Some unscrupulous coders call this and we don't want their users to suffer.

Version 4.0.0

2019-06-26

This release upgrades OkHttp to Kotlin. We tried our best to make fast and safe to upgrade from OkHttp 3.x. We wrote an upgrade guide to help with the migration and a blog post to explain it.

  • Fix: Target Java 8 bytecode for Java and Kotlin.

Version 4.0.0-RC3

2019-06-24

  • Fix: Retain binary-compatibility in okhttp3.internal.HttpMethod. Naughty third party SDKs import this and we want to ease upgrades for their users.

Version 4.0.0-RC2

2019-06-21

  • New: Require Kotlin 1.3.40.
  • New: Change the Kotlin API from File.toRequestBody() to File.asRequestBody() and BufferedSource.toResponseBody() to BufferedSource.asResponseBody(). If the returned value is a view of what created it, we use as.
  • Fix: Permit response codes of zero for compatibility with OkHttp 3.x.
  • Fix: Change the return type of MockWebServer.takeRequest() to be nullable.
  • Fix: Make Call.clone() public to Kotlin callers.

Version 4.0.0-RC1

2019-06-03

  • First stable preview of OkHttp 4.

Version 3.x

Change log