Sourced from kameo's releases.

v0.18.0

A huge thank you to Huly Labs, Caido Community, vanhouc, cawfeecoder, and JaniM for supporting Kameo's development! 💖

And thanks to our new contributors:

• @​LVivona made their first contribution in #204

Highlighted Changes

Add lookup_all method for actors registered on multiple peers (#190)

Previously in kameo, registering actors under the same name on different peers caused inconsistent behaviour within the kademlia DHT. Now when actors are registered on multiple nodes, lookup_all can be used to get a reference to them all.

It is still discouraged to register actors under the same name across peers however.

Add Context::stop method (#231)

Previously, the only way to gracefully stop an actor is with ActorRef::stop_gracefully, which stops the actor after all queued messages are processed.

This change allows message handlers to stop the actor immediately after processing the current message via the new Context::stop method.

impl Message<ImmediatelyStop> for MyActor {
    type Reply = ();
async fn handle(&amp;mut self, _msg: ImmediatelyStop, ctx: Context&lt;'_, Self, Self::Reply&gt;) {
    ctx.stop(); // The actor will stop normally after this message is handled.
}

}

Refactor remote system to use composable NetworkBehaviour pattern (#198)

This change completely redesigns Kameo's remote actor system to follow libp2p's idiomatic NetworkBehaviour pattern, replacing the previous monolithic wrapper approach with composable behaviors that integrate seamlessly into user-controlled swarms.

What Changed

Before: Kameo provided an ActorSwarm wrapper that internally managed its own libp2p swarm, limiting user customization and making integration with other libp2p protocols difficult.

... (truncated)

Sourced from kameo's changelog.

[0.18.0] - 2025-09-11

• @​LVivona made their first contribution in #204

Added

• BREAKING: Add a lookup_all method to the actor registry using providers (#190)
• BREAKING: Add fire-and-forget option for remote tell requests (#205)
• BREAKING: Add Context::stop method for stopping the actor within a message handler (#231)
• BREAKING: Add wait_for_startup/shudown_with_result methods for non Clone errors (#235)
• Implement Reply for most of kameo's types (#200)
• Add ActorRef::into_remote_ref method and impl Seralize/Deserialize for RemoteActorRef (#211)
• Use debug printing for panic error logs (#214)
• Improve RemoteActorRef Deserialize impl (#215)
• Remove Debug constraint on A for Context (#216)
• Add RemoteAskRequest::enqueue and try_enquque methods (#217)
• Implement Serialize and Deserialize for SendError </>
• Add Context::spawn method (#218)
• Add ForwardedReply Direct results (#223)
• Hash remote_message impls to auto generate ids (#228)

Changed

• BREAKING: Refactor remote system to use composable NetworkBehaviour pattern (#198)
• BREAKING: Use DeliveryMethod for PubSub actor (#206)
• BREAKING: Implement PartialOrd and Ord for actor id and ref types (#219)
• BREAKING: Return reference in Context::actor_ref (#222)
• Improve test and lint coverage for all workspace crates (#191)
• Rename ActorID to ActorId (#202)
• Consolidate remote feature conditional compilation blocks (#204)

Removed

• BREAKING: Remove dependency on once_cell (#209)
• BREAKING: Remove PendingReply lifetime (#212)

Fixed

• Resolve test and lint issues uncovered by improved CI (#192)
• Stop_gracefully panicking when actor is already stopped (#201)
• Prevent deadlock in ActorRef link/unlink methods (#221)
• Drop mailbox immediately when actor is stopped (#233)

Documentation

• Fix version 0.17.2 link in CHANGELOG.md </>
• Update outdated Actor example and FAQ </>
• Remove prerequisites from README.md </>

Misc

... (truncated)

• e03a79c chore: bump kameo to version 0.18.0
• 43a168f chore: bump kameo_macros to version 0.18.0
• dfb92a0 feat!: add wait_for_startup/shudown_with_result methods for non Clone err...
• 0dcc5e9 chore(deps): update const-str requirement from 0.6.4 to 0.7.0 (#234)
• 2792af8 chore: add JaniM to README.md sponsors <3
• 62bf410 fix: drop mailbox immediately when actor is stopped (#233)
• dc61c71 feat!: add Context::stop method for stopping the actor within a message han...
• 8272652 feat(macros): hash remote_message impls to auto generate ids (#228)
• 4a3a6c4 chore(deps): update criterion requirement from 0.6 to 0.7 (#225)
• fbab43c feat: add ForwardedReply Direct results (#223)
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