Dear hakkers,

We are happy to announce the 10.2.2 release of Akka HTTP. This release is the second update in the 10.2.x series of Akka HTTP.

Changes since 10.2.1

For a full overview you can also see the 10.2.2 milestone. Notably, we have made various improvements to the HTTP/2 server support while we continue to prepare for providing HTTP/2 support at the client as well.

As of this version, it is no longer strictly necessary to depend no a separate ‘akka-http2-support’ artifact to get HTTP/2 support in Akka HTTP. We will continue to publish an empty artifact with that name to make it easy to upgrade, however.

Changes since 10.2.1

akka-http-core

• Allow illegal header keys to be ignored #3133
• HttpCookie.copy was calling itself recursively #3670
• Don’t dispatch onResponseEntity… events for entities that don’t have to be subscribed #3574
• Add modeled ‘TE’ header #3616, #3618
• Add parens to deprecation messages for bind-methods #3547
• Use official version of SocketUtil in tests #3558
• Link to https rather than http #3663
• Avoid temporaryServerHostnameAndPort #3691

akka-http

• Optimize header directives by avoiding HttpHeader.unapply #3591

akka-http-marshallers

• Update jackson-dataformat-xml from 2.10.5 to 2.10.5.1 #3695

akka-http-testkit

• Fall through on AssertionErrors in testkit #3512
• Fail noisily if trying to use ~> together with transparent-head-requests #3569

docs

• Add example for Get request with query parameters #3624
• Add akka-actor-typed dependency to introduction.md #3565
• Typo fix: “the onne” –> “the one” #3521
• Some docs gardening #3544
• Link project info to snapshots #3681
• Release notes for 10.1.13 #3635
• Add section about how to configure snapshots #3642
• Add example for Get request with query parameters #3624
• Update formFields example #3650
• Verify signatures from the markdown actually exist #3654
• Add link from formFields to parameters directive docs #3655
• Use explicit paths to snippets #3653
• Fix the Bid class. #3661

akka-http2-support

• Extract common rendering + add userAgent on requests #3657
• Continue accepting window updates even when done sending #3619
• Support custom HTTP methods for HTTP/2 #3622
• More robust handling of IncomingStreamBuffer.onPull #3621
• Simplify Http2Substream hierarchy trading a bit of type-safety for simplicity #3605
• More useful event info for stream state changes #3643
• Add some more basic HTTP/2 client tests #3644
• Configurable ping support through demuxer #3617
• Close the substreams earlier from the demuxer #3647
• HTTP/2 client test coverage (and support for) TLS session info #3668
• Handle RST while sending data + more tests #3671
• Fix lost ‘pull’ when closing while waiting for window #3672
• Send and enforce max concurrent streams setting #3529
• Unify incoming and outgoing state machine #3552
• Disable Push (send SETTING) #3555
• Fix Scala 2.12 compilation error #3582
• Remove explicit parallelism parameter in HTTP/2 #3545
• Respect remote max concurrent streams (reprise) #3581
• Also go through state machine for resetStream #3584
• Fix leakage of incoming substreams in edge cases #3233
• Run handler code in its own task on the server #3593
• Check HTTP2 headers for correctness #3603
• HTTP/2 connection level API #3511
• Accepting trailing headers in the HTTP/2 client #3602
• Protocol-level client specs #3532
• Move some public API bits to its final places and mark them as @ApiMayChange#3526
• Use LogHelper in demux classes #3506
• Remove some minor repetition in HTTP/2 rendering #3229
• Test server responses to invalid ping frames #3523
• Use scheme portion of target URI in :scheme pseudo-header #3535
• Add test for receiving WINDOW_UPDATE in HalfClosedRemoteWaitingForOutgoingStream state #3554
• Make ‘network’ and ‘user’ sides more explicit #3638
• streamId attribute is not needed / supported on client side #3652

build

• Akka HTTP BOM #3665
• Add 10.2.1 to MiMa #3499
• Increase paradox parsing timeout #3508
• Also aggregate akka-http-bench-jmh, to fail if benchs fail to compile #3561
• Exclude akka-http-bench-jmh from whitesource #3562
• Disable whitesource for submodules which are not to be published #3564
• Remove sbt-javaagent #3598
• Include stack traces in scalatest failures #3612
• Add 10.1.13 to mima #3641

And various updates:

• Update akka to 2.5.32 #3558
• Update caffeine from 2.8.5 to 2.8.7 #3515
• Update junit from 4.12 to 4.13.1 #3517
• Update paradox-theme-akka, … from 0.35 to 0.36#3697
• Update sbt-bintray from 0.5.6 to 0.6.1 #3572, #3596
• Update sbt-mima-plugin from 0.8.0 to 0.8.1 #3548
• Update sbt-scalafix, scalafix-core, … from 0.9.21 to 0.9.23 #3614
• Update specs2-core from 4.10.3 to 4.10.5 #3518, #3550
• Update spray-json from 1.3.5 to 1.3.6 #3629

Credits

The complete list of closed issues can be found on the 10.2.2 milestone on GitHub.

For this release we had the help of 17 contributors – thank you all very much!

commits  added  removed
     38   1177     1029 Johannes Rudolph
     36   2454     1579 Arnout Engelen
     12   1366      180 Johan Andrén
      7    773      389 Ignasi Marimon-Clos
      3     15       25 Enno Runne
      1    123       16 Christof Nolle
      1     33        2 Nikhil
      1     22        0 Artur Soler
      1      4        4 Philippus Baalman
      1      3        2 Andrea Peruffo
      1      3        2 Sungho Hwang
      1      2        2 Nathaniel Fischer
      1      2        2 Michael Simons
      1      2        2 nitikagarw
      1      1        1 gnp
      1      1        1 Nitika Agarwal
      1      1        1 Roberto Leibman

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– The Akka Team