# Akka 2.6.0-M5 released

**URL:** <https://discuss.akka.io/t/akka-2-6-0-m5-released/4714>\
**Category:** Akka Libraries\
**Tags:** announcement\
**Created:** [July 26, 2019, 1:14pm UTC](https://discuss.akka.io/t/akka-2-6-0-m5-released/4714 "2019-07-26T13:14:21Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![raboof](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.akka.io/raboof/32/2913_2.png) [@raboof](https://discuss.akka.io/u/raboof)\
**Post date:** [July 26, 2019, 1:14pm UTC](https://discuss.akka.io/t/akka-2-6-0-m5-released/4714/1 "2019-07-26T13:14:21Z")

</div>

Dear hakkers,

The fifth development milestone for Akka 2.6 is out.

It would be excellent if you can try the milestones out and give us feedback. Akka 2.6 is binary backwards compatible with 2.5 with the ordinary [exceptions listed in the documentation](https://doc.akka.io/docs/akka/2.6/common/binary-compatibility-rules.html). Some configuration changes may be needed, please read the [migration guide](https://doc.akka.io/docs/akka/2.6/project/migration-guide-2.5.x-2.6.x.html) as a first step.

Some notable changes in 2.6.0-M5:

- Including actor termination in coordinated shutdown [#27089](https://github.com/akka/akka/issues/27089)
- Returning partial results in ShardRegion diagnostic statistics when not all shards could be queried [#27100](https://github.com/akka/akka/issues/27100)
- Fix stashing of commands when snapshot is in progress in akka persistence typed [#27389](https://github.com/akka/akka/pull/27389)
- Improved documentation on rolling updates [#27382](https://github.com/akka/akka/pull/27382)
- Improved documentation on how to complete a Source.actorRef stream [#27321](https://github.com/akka/akka/issues/27321)
- Improved documentation on recommended coding style for typed [#22805](https://github.com/akka/akka/issues/22805)
- Improved documentation on enum serialization for Jackson [#27244](https://github.com/akka/akka/pull/27244)
- Fluent API for 2-stream `mergeLatest` and related stream operators [#27321](https://github.com/akka/akka/issues/27321)
- When using hostname verification with Artery TCP over TLS, only check hostname verification on the client side [#26905](https://github.com/akka/akka/issues/26905)
- Fix Artery TCP on ARM32 [#27302](https://github.com/akka/akka/pull/27302)
- Fix intercept of Watch in use of safe remote features [#27333](https://github.com/akka/akka/issues/27333)
- Disable Java serialization for remoting by default [#22333](https://github.com/akka/akka/issues/22333)
- Rename `Behavior.widen` to `transformMessages` [#27253](https://github.com/akka/akka/issues/27253)

A total of 53 issues were closed since 2.6.0-M4. The complete list can be found on the [2.6.0-M5 milestone on github](https://github.com/akka/akka/milestone/145?closed=1).

## Credits

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

```auto
Commits added removed
   18 10708 2910 Patrik Nordwall
   11 2117 457 Christopher Batey
   10 536 48 Arnout Engelen
    8 1612 407 Johan Andrén
    7 1244 214 Helena Edelson
    3 19 7 Johannes Rudolph
    3 17 19 Dale Wijnand
    3 215 9 James Roper
    2 37 2 Kun Song
    2 9 7 kerr
    1 1 1 Philippus Baalman
    1 1 1 jeremie-seguin
    1 355 5 eyalfa
    1 4 8 Yury Gribkov
    1 6 5 Kirill Plyashkevich
    1 1 1 rohitkumbhar
    1 4 4 kenji yoshida

```

Thanks to [Lightbend](https://www.lightbend.com/) for their continued sponsorship of the Akka core team’s efforts. Lightbend [offers commercial support](https://www.lightbend.com/lightbend-platform-subscription) for Akka.

Happy hakking!

– The Akka Team
