v0.4.0

Author: benbrandt

CHANGELOG.md

@@ -0,0 +1,20 @@
+# Changelog
+
+## 0.4.0 (2025-09-17)
+
+### Protocol
+
+No changes.
+
+### Rust Library
+
+- Make `Agent` and `Client` dyn compatible (you'll need to annotate them with `#[async_trait]`) [#97](https://github.com/zed-industries/agent-client-protocol/pull/97)
+- `ext_method` and `ext_notification` methods are now more consistent with the other trait methods [#95](https://github.com/zed-industries/agent-client-protocol/pull/95)
+  - There are also distinct types for `ExtRequest`, `ExtResponse`, and `ExtNotification`
+- Rexport `serde_json::RawValue` for easier use [#95](https://github.com/zed-industries/agent-client-protocol/pull/95)
+
+### Typescript Library
+
+- Use Stream abstraction instead of raw byte streams [#93](https://github.com/zed-industries/agent-client-protocol/pull/93)
+ - Makes it easier to use with websockets instead of stdio
+- Improve type safety for method map helpers [#94](https://github.com/zed-industries/agent-client-protocol/pull/94)

Cargo.lock

@@ -1,7 +1,7 @@
 [package]
 name = "agent-client-protocol"
 authors = ["Zed <hi@zed.dev>"]
-version = "0.3.1-alpha.1"
+version = "0.4.0"
 edition = "2024"
 license = "Apache-2.0"
 description = "A protocol for standardizing communication between code editors and AI coding agents"

Cargo.toml

@@ -1,6 +1,6 @@
 {
   "name": "@zed-industries/agent-client-protocol",
-  "version": "0.3.1-alpha.1",
+  "version": "0.4.0",
   "publishConfig": {
     "access": "public"
   },