akka

Akka 2.3.1 Maintenance Release

We—the Akka committers—are pleased to be able to announce the availability of Akka 2.3.1. This is the first maintenance release of the 2.3 branch, containing documentation improvements and fixing several issues including:

Simplified receive definition and support for supervision strategies for Java 8
Support for receiving ConfirmablePersistent messages and using become() during recovery in EventSourcedProcessor
Prevent possible actor leaks during repeated remote deployment after restart
More robust failure handling in cluster sharding
Prevent Quarantine state being lost
Proxy for ClusterSingletons (by Giovanni Botta)
Ability to use an external Camel context (by Thibaut Robert)

This release is backwards binary compatible with version 2.3.0 which means that the new JARs are a drop-in replacement for the old one (but not the other way around) as long as your build does not enable the inliner (Scala-only restriction). Always make sure to use at least the latest version required by any of your project’s dependencies.

Migrating from Older Relases

When migrating an existing project from Akka 2.2.x please have a look at our migration guide.

2.3.1 compared to 2.3.0:

21 tickets closed
199 files changed, 5753 insertions(+), 2058 deletions(-)
... and a total of 6 committers!

Full list of fixed tickets:

2556, Give AddressTerminated its own event bus
3843, Cluster singleton proxy
3885, Add the ability to use an external camel context
3907, OSGi version range broken for Scala 2.11
3910, Zip akka-sample-fsm-java-lambda
3911, Add a Java 8 DirectiveBuilder
3912, add akka-osgi structure change to 2.2->2.3 migration guide
3913, setup mima on release-2.3 branch
3915, Support become in EventsourcedProcessor during recovery
3917, DOC: Include persistence reference.conf in docs
3924, DOC: how to be notified when recovery completed
3925, Create Java 8 version of supervision Activator emplate
3927, allow Confirmable messages (from PersistentChannel) to be sent to EventsourcedProcessor
3930, repeated remote deployment leaks actors
3933, Confirmed messages are delivered through channel when non persistent and persistent msgs are responded to with the same channel.
3937, ShardCoordinator doesn't handle persistence failure
3940, Add sugar to AbstractActor for Java 8 for defining initial receive
3941, FAILED: SurviveNetworkInstability (left-over ping)
3943, Gate should not overwrite quarantine
3948, multi-node-tests: add startNewSystem() and shutdown(...
3949, add state label support to LoggingReceive

Credits

commits   added   removed
    11 681 284 Roland Kuhn
     7 823 320 Patrik Nordwall
     6 2337 519 Björn Antonsson
     1 107 2 Endre Sándor Varga
     1 440 34 Giovanni Botta
     1 62 7 Thibaut Robert

Additional Release Details

The artifacts comprising this release have been published to https://oss.sonatype.org/content/repositories/releases/ and also to Maven Central. In addition, we adopted the sbt standard of encoding the Scala binary version in the artifact name, i.e. the core actor package’s artifactId is “akka-actor_2.10.”