Akka 1.5.68

Akka.NET

Akka.NET logo

Discord NuGet Nuget

Akka.NET is a .NET port of the popular Akka project from the Scala / Java community. We are an idiomatic .NET implementation of the actor model built on top of the .NET Common Language Runtime.

Akka.NET is a .NET Foundation project.

.NET Foundation Logo

How is Akka.NET Used?

Akka.NET can be used in-process or inside large, distributed real-time systems; we support a wide variety of use cases.

Akka.NET can be used to solve the following types of problems:

  1. Concurrency - Akka.NET actors only process messages one-at-a-time and they do so in first in, first out (FIFO) order; this means that any application state internal to an actor is automatically thread-safe without having to use locks or any other shared-memory synchronization mechanisms.
  2. Stream Processing - Akka.NET actors and Akka.Streams make it easy to build streaming applications, used for processing incoming streams of data or incoming streams of live events such as UI or network events inside native applications.
  3. Event-Driven Programming - actors make it easy to build event-driven applications, as actors' message-processing routines naturally express these types of designs.
  4. Event Sourcing and CQRS - Akka.Persistence, used by actors to make their state re-entrant and recoverable across restarts or migrations between nodes, natively supports event sourcing. Akka.Persistence.Query can be used to compute CQRS-style projections and materialized views from Akka.Persistence data.
  5. Location Transparency - Akka.Remote makes it simple for actors in remote processes to transparently communicate with each other.
  6. Highly Available, Fault-Tolerant Distributed Systems - Akka.Cluster, Akka.Cluster.Sharding, and other tools built on top of Akka.Cluster make it possible to build highly available and fault-tolerant distributed systems by leveraging peer-to-peer programming models with topology-aware message routing and distribution.
  7. Low Latency, High Throughput - Akka.NET aims to be low latency and high throughput, processing 10s millions of messages per second in-memory and hundreds of thousands of messages per second over remote connections.

Where Can I Learn Akka.NET?

You can start by taking the Akka.NET Bootcamp, but there are many other great learning resources for Akka.NET Online.

Build Status

Stage Status
NuGet Pack Build Status
.NET Framework Unit Tests Build Status
.NET Unit Tests (Windows) Build Status
.NET Unit Tests (Linux) Build Status
.NET MultiNode Tests (Windows) Build Status
.NET MultiNode Tests (Linux) Build Status
Docs Build Status

Install Akka.NET via NuGet

If you want to include Akka.NET in your project, you can install it directly from NuGet

To install Akka.NET Distributed Actor Framework, run the following command in the Package Manager Console

PM> Install-Package Akka.Hosting

Akka.Hosting includes the base Akka NuGet package and also provides an easy interface to integrate Akka.NET with the most-used parts of the Microsoft.Extensions ecosystem: Configuration, Logging, Hosting, and DependencyInjection. We encourage developers to adopt it.

And if you need F# support:

PM> Install-Package Akka.FSharp

Akka.NET Project Templates

To create your own Akka.NET projects using our templates (Akka.Templates), install them via the dotnet CLI:

dotnet new install "Akka.Templates::*"

This will make our templates available via dotnet new on the CLI and as new project templates inside any .NET IDE such as Visual Studio or JetBrains Rider. You can view the full list of templates included in our package here: https://github.com/akkadotnet/akkadotnet-templates#available-templates

Builds

Please see Building Akka.NET.

To access nightly Akka.NET builds, please see the instructions here.

Support

If you need help getting started with Akka.NET, there's a number of great community resources online:

If you and your company are interested in getting professional Akka.NET support, you can contact Petabridge for dedicated Akka.NET support.

No packages depend on Akka.

Akka.NET v1.5.68 is a maintenance release with bug fixes for Akka.IO TCP connection handling, Akka.Streams stream materialized task faults, and Akka.TestKit xUnit 3 parallel context management.

Akka.IO Bug Fixes

  • Fix: report Tcp.CommandFailed when a scheduled connect retry throws - Fixes #8195: On Linux, a dropped TCP connection could permanently stall the user actor รขโ‚ฌโ€ it never received Tcp.Connected or Tcp.CommandFailed because a PlatformNotSupportedException thrown during a scheduled connect retry was swallowed by the HashedWheelTimerScheduler. The retry is now scheduled as a RetryConnect self-message via IWithTimers, ensuring any exception is surfaced to the commander as Tcp.CommandFailed and the connection actor stops cleanly. The pending timer is also canceled automatically when the actor stops, removing a latent use-after-dispose bug.

Akka.Streams Bug Fixes

Akka.TestKit Bug Fixes

  • Fix: wrap outer SynchronizationContext in ActorCellKeepingSynchronizationContext - ActorCellKeepingSynchronizationContext now accepts an optional inner SynchronizationContext and delegates scheduling to it while wrapping callbacks with the cell-pinning window. This prevents test hangs in downstream consumers such as Akka.Hosting.TestKit whose async IHost lifecycle depends on xUnit v3's MaxConcurrencySyncContext scheduling.

1 contributor since release 1.5.67

COMMITS LOC+ LOC- AUTHOR
3 476 119 Aaron Stannard

To see the full set of changes in Akka.NET v1.5.68, click here.

Version Downloads Last updated
1.5.68 1 5/18/2026
1.5.67 22 5/4/2026
1.5.66 17 5/3/2026
1.5.65 17 5/4/2026
1.5.64 19 5/4/2026
1.5.63 11 3/24/2026
1.5.62 13 3/9/2026
1.5.61 15 2/27/2026
1.5.60 19 2/13/2026
1.5.59 20 1/28/2026
1.5.58 19 1/12/2026
1.5.57 24 12/14/2025
1.5.57-beta2 32 12/4/2025
1.5.57-beta1 25 12/2/2025
1.5.56 34 11/26/2025
1.5.55 68 10/27/2025
1.5.54 61 10/23/2025
1.5.53 74 10/23/2025
1.5.52 54 10/23/2025
1.5.51 59 10/23/2025
1.5.50 70 10/23/2025
1.5.49 62 10/23/2025
1.5.48 50 10/23/2025
1.5.47 56 10/23/2025
1.5.46 58 10/23/2025
1.5.45 67 10/23/2025
1.5.44 71 10/23/2025
1.5.43 53 10/23/2025
1.5.42 44 10/23/2025
1.5.41 63 10/23/2025
1.5.40 66 10/23/2025
1.5.39 62 10/23/2025
1.5.38 73 10/23/2025
1.5.37 68 10/23/2025
1.5.36 74 10/23/2025
1.5.35 57 10/23/2025
1.5.34 61 10/23/2025
1.5.33 55 10/23/2025
1.5.32 70 10/23/2025
1.5.31 67 10/23/2025
1.5.30 58 10/23/2025
1.5.29 56 10/23/2025
1.5.28 53 10/23/2025
1.5.28-beta1 64 10/23/2025
1.5.27.1 50 10/23/2025
1.5.27 71 10/23/2025
1.5.27-beta2 49 10/23/2025
1.5.27-beta1 52 10/23/2025
1.5.26 72 10/23/2025
1.5.25 44 10/23/2025
1.5.24 45 10/23/2025
1.5.23 56 10/23/2025
1.5.22 65 10/23/2025
1.5.21 57 10/23/2025
1.5.20 69 10/23/2025
1.5.19 65 10/23/2025
1.5.18 58 10/23/2025
1.5.17.1 57 10/23/2025
1.5.17 62 10/23/2025
1.5.16 54 10/23/2025
1.5.15 71 10/23/2025
1.5.14 70 10/23/2025
1.5.13 74 10/23/2025
1.5.13-beta1 59 10/23/2025
1.5.12 52 10/23/2025
1.5.11 55 10/23/2025
1.5.10 63 10/23/2025
1.5.9 50 10/23/2025
1.5.8 59 10/23/2025
1.5.7 64 10/23/2025
1.5.6 58 10/23/2025
1.5.5 57 10/23/2025
1.5.4 75 10/23/2025
1.5.3 56 10/23/2025
1.5.2 54 10/23/2025
1.5.1 79 10/23/2025
1.5.0 67 10/23/2025
1.5.0-beta6 49 10/23/2025
1.5.0-beta5 51 10/23/2025
1.5.0-beta4 67 10/23/2025
1.5.0-beta3 66 10/23/2025
1.5.0-beta2 67 10/23/2025
1.5.0-beta1 66 10/23/2025
1.5.0-alpha4 54 10/23/2025
1.5.0-alpha3 54 10/23/2025
1.5.0-alpha2 64 10/23/2025
1.5.0-alpha1 60 10/23/2025
1.4.51 51 10/23/2025
1.4.50 69 10/23/2025
1.4.49 58 10/23/2025
1.4.49-beta1 58 10/23/2025
1.4.48 50 10/23/2025
1.4.47 54 10/23/2025
1.4.46 52 10/23/2025
1.4.45 48 10/23/2025
1.4.44 56 10/23/2025
1.4.43 64 10/23/2025
1.4.42 57 10/23/2025
1.4.41 56 10/23/2025
1.4.40 65 10/23/2025
1.4.39 63 10/23/2025
1.4.38 48 10/23/2025
1.4.37 61 10/23/2025
1.4.36 75 10/23/2025
1.4.35 51 10/23/2025
1.4.34 52 10/23/2025
1.4.33 50 10/23/2025
1.4.32 56 10/23/2025
1.4.31 52 10/23/2025
1.4.30 51 10/23/2025
1.4.29 70 10/23/2025
1.4.28 52 10/23/2025
1.4.27 54 10/23/2025
1.4.26 78 10/23/2025
1.4.25 62 10/23/2025
1.4.24 49 10/23/2025
1.4.23 52 10/23/2025
1.4.22 53 10/23/2025
1.4.21 66 10/23/2025
1.4.21-beta1 74 10/23/2025
1.4.20 56 10/23/2025
1.4.19 74 10/23/2025
1.4.18 60 10/23/2025
1.4.17 73 10/23/2025
1.4.16 58 10/23/2025
1.4.15 53 10/23/2025
1.4.14 61 10/23/2025
1.4.13 57 10/23/2025
1.4.12 60 10/23/2025
1.4.11 65 10/23/2025
1.4.10 59 10/23/2025
1.4.9 68 10/23/2025
1.4.8 53 10/23/2025
1.4.7 65 10/23/2025
1.4.6 54 10/23/2025
1.4.5 66 10/23/2025
1.4.4 54 10/23/2025
1.4.3 52 10/23/2025
1.4.2 61 10/23/2025
1.4.1 59 10/23/2025
1.4.1-rc3 74 10/23/2025
1.4.1-rc2 64 10/23/2025
1.4.1-rc1 54 10/23/2025
1.4.0 37 11/26/2025
1.4.0-beta4 65 10/23/2025
1.4.0-beta3 80 10/23/2025
1.4.0-beta2 65 10/23/2025
1.4.0-beta1 50 10/23/2025
1.3.19 71 10/23/2025
1.3.18 69 10/23/2025
1.3.17 73 10/23/2025
1.3.16 50 10/23/2025
1.3.15 55 10/23/2025
1.3.14 64 10/23/2025
1.3.13 54 10/23/2025
1.3.12 70 10/23/2025
1.3.11 64 10/23/2025
1.3.10 75 10/23/2025
1.3.9 62 10/23/2025
1.3.8 55 10/23/2025
1.3.7 67 10/23/2025
1.3.6 64 10/23/2025
1.3.5 60 10/23/2025
1.3.4 56 10/23/2025
1.3.3 57 10/23/2025
1.3.2 57 10/23/2025
1.3.1 68 10/23/2025
1.3.0 62 10/23/2025
1.2.3 55 10/23/2025
1.2.2 60 10/23/2025
1.2.1 61 10/23/2025
1.2.0 75 10/23/2025
1.1.3 66 10/23/2025
1.1.2 44 10/23/2025
1.1.1 66 10/23/2025
1.1.0 57 10/23/2025
1.0.8 56 10/23/2025
1.0.7 63 10/23/2025
1.0.6 59 10/23/2025
1.0.5 59 10/23/2025
1.0.4 54 10/23/2025
1.0.3 62 10/23/2025
1.0.2 74 10/23/2025
1.0.1 60 10/23/2025
1.0.0 66 10/23/2025
1.0.0-dev1504032244 45 10/23/2025
0.8.0 69 10/23/2025
0.7.1 65 10/23/2025
0.7.0 55 10/23/2025
0.6.4 63 10/23/2025
0.6.3 58 10/23/2025
0.6.2 59 10/23/2025
0.6.1 54 10/23/2025
0.6.0 52 10/23/2025
0.5.8 56 10/23/2025
0.5.2 71 10/23/2025
0.5.0 56 10/23/2025
0.2.1-beta 56 10/23/2025
0.2.0-beta 50 10/23/2025