diff --git a/.changeset/go-client-cancel-turn.md b/.changeset/go-client-cancel-turn.md
deleted file mode 100644
index 050a187f..00000000
--- a/.changeset/go-client-cancel-turn.md
+++ /dev/null
@@ -1,21 +0,0 @@
----
-"@smooai/smooth-operator": patch
----
-
-feat(go): client-initiated turn cancellation — Client.Cancel() + MessageTurn.Cancel()
-
-The wire protocol and all five servers already honor the `cancel` frame / `cancelled`
-event, but the Go client had no way to send it. Add the missing client surface, mirroring
-the TypeScript reference (#459):
-
-- `Client.Cancel(CancelParams{RequestID, SessionID?})` sends the `cancel` frame.
-- `MessageTurn.Cancel()` is the ergonomic "stop THIS turn" convenience — it cancels using
- the turn's own requestId + originating sessionId. Fire-and-forget, idempotent.
-- A terminal `cancelled` event settles the matching turn as a user-stop: the event is
- delivered on `Events()`, the channel closes cleanly, `Wait` resolves WITHOUT an error,
- and `MessageTurn.Cancelled()` reports `true` so a UI tells a user-stop apart from a
- failure. Errors still go the error path.
-- `cancel` is now first-class in the `ActionType` set and `cancelled` in the `EventType`
- set (with `ServerEvent.AsCancelled()`), not stringly-typed.
-- Idempotent: a cancel with no active turn, or a `cancelled` with no matching turn, is a
- harmless no-op.
diff --git a/.changeset/ts-server-cancel-unpark-confirmation.md b/.changeset/ts-server-cancel-unpark-confirmation.md
deleted file mode 100644
index b6037df9..00000000
--- a/.changeset/ts-server-cancel-unpark-confirmation.md
+++ /dev/null
@@ -1,25 +0,0 @@
----
-"@smooai/smooth-operator-server": patch
----
-
-fix(ts): cancel discards a HITL-parked confirmation so the parked turn drops cleanly
-
-Cancelling a turn parked at a write-confirmation (HITL) freed the slot and emitted `cancelled`
-correctly, but the park in `turnRunner.ts` awaits a bare deferred from `ConfirmationRegistry.register`
-(`const approved = await verdict`) that the turn's `cancelSignal` abort does NOT itself complete. The
-cancel path already discarded it via a connection-wide `confirmations.rejectAll()`, but that is a
-broader sweep than the cancel needs.
-
-`FrameDispatcher.cancelActiveTurn` now discards precisely the cancelled turn's pending confirmation
-(`confirmations.resolve(turn.sessionId, false)`) after aborting the controller, so the parked await
-unblocks immediately (resolves denied; the result is dropped because the sink is gagged and the slot
-is already cleared). `activeTurn` now carries a `sessionId`, stamped where the turn is created in the
-`send_message` handler. The disconnect path still rejects every outstanding confirmation separately
-via `rejectPendingConfirmations`, so nothing dangles there. Mirrors the Rust reference dropping the
-confirmation future on abort and the .NET fix (#460). No behavior change for a non-parked cancel or
-the no-active-turn no-op.
-
-Adds a parity test (mirroring the .NET `CancelUnparkTests`) that drives a turn to
-`write_confirmation_required`, cancels it, and asserts `cancelled` is emitted, a later
-`confirm_tool_action` returns `NO_PENDING_CONFIRMATION`, the slot is freed (a new `send_message` is
-accepted), and no stray events leak from the abandoned turn.
diff --git a/dotnet/server/aspnetcore/SmooAI.SmoothOperator.Server.AspNetCore.csproj b/dotnet/server/aspnetcore/SmooAI.SmoothOperator.Server.AspNetCore.csproj
index acf38ad2..3540c11c 100644
--- a/dotnet/server/aspnetcore/SmooAI.SmoothOperator.Server.AspNetCore.csproj
+++ b/dotnet/server/aspnetcore/SmooAI.SmoothOperator.Server.AspNetCore.csproj
@@ -15,7 +15,7 @@
attribute. (Keep the element-form version out of comments: the sync regex
replaces the first element-form match in the file.) -->
SmooAI.SmoothOperator.Server.AspNetCore
- 1.52.0
+ 1.52.1
SmooAI
ai;agent;llm;chat;smooth-operator;server;aspnetcore;websocket;smooai
MIT
diff --git a/dotnet/server/postgres/src/SmooAI.SmoothOperator.Server.Postgres.csproj b/dotnet/server/postgres/src/SmooAI.SmoothOperator.Server.Postgres.csproj
index 8090a7e6..36467974 100644
--- a/dotnet/server/postgres/src/SmooAI.SmoothOperator.Server.Postgres.csproj
+++ b/dotnet/server/postgres/src/SmooAI.SmoothOperator.Server.Postgres.csproj
@@ -15,7 +15,7 @@
attribute. (Keep the element-form version out of comments: the sync regex
replaces the first element-form match in the file.) -->
SmooAI.SmoothOperator.Server.Postgres
- 1.52.0
+ 1.52.1
SmooAI
ai;agent;llm;chat;smooth-operator;server;postgres;pgvector;smooai
MIT
diff --git a/dotnet/server/src/SmooAI.SmoothOperator.Server.csproj b/dotnet/server/src/SmooAI.SmoothOperator.Server.csproj
index 7bcecc74..770be5d9 100644
--- a/dotnet/server/src/SmooAI.SmoothOperator.Server.csproj
+++ b/dotnet/server/src/SmooAI.SmoothOperator.Server.csproj
@@ -14,7 +14,7 @@
scripts/sync-versions.mjs (do NOT confuse with the SmooAI.SmoothOperator.Core
PackageReference version below, which tracks the separately-published engine). -->
SmooAI.SmoothOperator.Server
- 1.52.0
+ 1.52.1
SmooAI
ai;agent;llm;chat;smooth-operator;server;websocket;smooai
MIT
diff --git a/examples/web-chat/CHANGELOG.md b/examples/web-chat/CHANGELOG.md
index 4bff51c7..a5bc2073 100644
--- a/examples/web-chat/CHANGELOG.md
+++ b/examples/web-chat/CHANGELOG.md
@@ -1,5 +1,12 @@
# @smooai/smooth-operator-web-chat-example
+## 0.0.89
+
+### Patch Changes
+
+- Updated dependencies [888cbef]
+ - @smooai/smooth-operator@1.52.1
+
## 0.0.88
### Patch Changes
diff --git a/examples/web-chat/package.json b/examples/web-chat/package.json
index 8bbcb1cd..5bfb2d95 100644
--- a/examples/web-chat/package.json
+++ b/examples/web-chat/package.json
@@ -1,6 +1,6 @@
{
"name": "@smooai/smooth-operator-web-chat-example",
- "version": "0.0.88",
+ "version": "0.0.89",
"private": true,
"description": "A smooth-web-like Vite + React chat client that drives a running smooth-operator server over its WebSocket protocol — token streaming, inline tool-call/result blocks, a conversation sidebar, and oldest-first history, all on top of the published @smooai/smooth-operator SDK.",
"type": "module",
diff --git a/go/version.go b/go/version.go
index a62915ec..630d2801 100644
--- a/go/version.go
+++ b/go/version.go
@@ -5,4 +5,4 @@ package e2e
// language artifacts. The real Go "publish" is a git tag (go/v); this
// constant is the anchor that scripts/sync-versions.mjs keeps in sync with the
// canonical npm version on every changeset release.
-const Version = "1.52.0"
+const Version = "1.52.1"
diff --git a/python/pyproject.toml b/python/pyproject.toml
index eb09c981..94e34857 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -1,6 +1,6 @@
[project]
name = "smooai-smooth-operator"
-version = "1.52.0"
+version = "1.52.1"
description = "Python protocol types and native async WebSocket client for the smooth-operator protocol. Generated from the language-neutral JSON Schemas in spec/."
readme = "README.md"
license = { text = "MIT" }
diff --git a/python/server/pyproject.toml b/python/server/pyproject.toml
index a65efcd0..c08494b7 100644
--- a/python/server/pyproject.toml
+++ b/python/server/pyproject.toml
@@ -1,6 +1,6 @@
[project]
name = "smooai-smooth-operator-server"
-version = "1.52.0"
+version = "1.52.1"
description = "Native async WebSocket server for the smooth-operator protocol — parity with the Rust and C# reference servers, consuming the in-process smooai-smooth-operator-core engine."
readme = "README.md"
license = { text = "MIT" }
diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index b1abb50f..14fef1ce 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -4099,7 +4099,7 @@ checksum = "8ed6a63f02c8539c91a8685a86f4099661ba3da017932f6ebbea6de3f0fa7c90"
[[package]]
name = "smooai-smooth-operator"
-version = "1.52.0"
+version = "1.52.1"
dependencies = [
"anyhow",
"async-trait",
@@ -4133,7 +4133,7 @@ dependencies = [
[[package]]
name = "smooai-smooth-operator-adapter-backplane-nats"
-version = "1.52.0"
+version = "1.52.1"
dependencies = [
"anyhow",
"async-nats",
@@ -4149,7 +4149,7 @@ dependencies = [
[[package]]
name = "smooai-smooth-operator-adapter-backplane-redis"
-version = "1.52.0"
+version = "1.52.1"
dependencies = [
"anyhow",
"async-trait",
@@ -4165,7 +4165,7 @@ dependencies = [
[[package]]
name = "smooai-smooth-operator-adapter-dynamodb"
-version = "1.52.0"
+version = "1.52.1"
dependencies = [
"anyhow",
"async-trait",
@@ -4186,7 +4186,7 @@ dependencies = [
[[package]]
name = "smooai-smooth-operator-adapter-memory"
-version = "1.52.0"
+version = "1.52.1"
dependencies = [
"anyhow",
"async-trait",
@@ -4199,7 +4199,7 @@ dependencies = [
[[package]]
name = "smooai-smooth-operator-adapter-postgres"
-version = "1.52.0"
+version = "1.52.1"
dependencies = [
"anyhow",
"async-trait",
@@ -4290,7 +4290,7 @@ dependencies = [
[[package]]
name = "smooai-smooth-operator-ingestion"
-version = "1.52.0"
+version = "1.52.1"
dependencies = [
"anyhow",
"async-trait",
@@ -4337,7 +4337,7 @@ dependencies = [
[[package]]
name = "smooai-smooth-operator-server"
-version = "1.52.0"
+version = "1.52.1"
dependencies = [
"anyhow",
"async-trait",
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index ad610420..8470241f 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -40,7 +40,7 @@ smooai-smooth-operator-core = "1.8.0"
# Intra-workspace dep on the reference lib carries its version so the adapters /
# ingestion / server that depend on it are publishable (path = local dev,
# version = the crates.io requirement).
-smooth-operator = { package = "smooai-smooth-operator", path = "smooth-operator", version = "1.52.0" }
+smooth-operator = { package = "smooai-smooth-operator", path = "smooth-operator", version = "1.52.1" }
async-trait = "0.1"
anyhow = "1"
diff --git a/rust/adapters/backplane-nats/Cargo.toml b/rust/adapters/backplane-nats/Cargo.toml
index 48be7ab6..a77bd4ad 100644
--- a/rust/adapters/backplane-nats/Cargo.toml
+++ b/rust/adapters/backplane-nats/Cargo.toml
@@ -1,6 +1,6 @@
[package]
name = "smooai-smooth-operator-adapter-backplane-nats"
-version = "1.52.0"
+version = "1.52.1"
edition.workspace = true
license.workspace = true
repository.workspace = true
diff --git a/rust/adapters/backplane-redis/Cargo.toml b/rust/adapters/backplane-redis/Cargo.toml
index 75b7dd37..21cd3976 100644
--- a/rust/adapters/backplane-redis/Cargo.toml
+++ b/rust/adapters/backplane-redis/Cargo.toml
@@ -1,6 +1,6 @@
[package]
name = "smooai-smooth-operator-adapter-backplane-redis"
-version = "1.52.0"
+version = "1.52.1"
edition.workspace = true
license.workspace = true
repository.workspace = true
diff --git a/rust/adapters/dynamodb/Cargo.toml b/rust/adapters/dynamodb/Cargo.toml
index 0ad148fe..3bffa305 100644
--- a/rust/adapters/dynamodb/Cargo.toml
+++ b/rust/adapters/dynamodb/Cargo.toml
@@ -1,6 +1,6 @@
[package]
name = "smooai-smooth-operator-adapter-dynamodb"
-version = "1.52.0"
+version = "1.52.1"
edition.workspace = true
license.workspace = true
repository.workspace = true
@@ -19,7 +19,7 @@ s3-vectors = ["dep:aws-sdk-s3vectors", "dep:aws-smithy-types"]
smooth-operator = { workspace = true }
smooai-smooth-operator-core = { workspace = true }
# IndexingStore / IndexingRun for the persistent admin indexing-runs store.
-smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.52.0" }
+smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.52.1" }
async-trait = { workspace = true }
anyhow = { workspace = true }
chrono = { workspace = true }
diff --git a/rust/adapters/in-memory/Cargo.toml b/rust/adapters/in-memory/Cargo.toml
index f68abb2d..6af14b62 100644
--- a/rust/adapters/in-memory/Cargo.toml
+++ b/rust/adapters/in-memory/Cargo.toml
@@ -1,6 +1,6 @@
[package]
name = "smooai-smooth-operator-adapter-memory"
-version = "1.52.0"
+version = "1.52.1"
edition.workspace = true
license.workspace = true
repository.workspace = true
diff --git a/rust/adapters/postgres/Cargo.toml b/rust/adapters/postgres/Cargo.toml
index 1399c232..1a540772 100644
--- a/rust/adapters/postgres/Cargo.toml
+++ b/rust/adapters/postgres/Cargo.toml
@@ -1,6 +1,6 @@
[package]
name = "smooai-smooth-operator-adapter-postgres"
-version = "1.52.0"
+version = "1.52.1"
edition.workspace = true
license.workspace = true
repository.workspace = true
@@ -15,7 +15,7 @@ smooth-operator = { workspace = true }
# `postgres` feature pulls in PostgresCheckpointStore (sync r2d2 path).
smooai-smooth-operator-core = { workspace = true, features = ["postgres"] }
# IndexingStore / IndexingRun for the persistent admin indexing-runs store.
-smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.52.0" }
+smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.52.1" }
async-trait = { workspace = true }
anyhow = { workspace = true }
chrono = { workspace = true }
diff --git a/rust/ingestion/Cargo.toml b/rust/ingestion/Cargo.toml
index 1c5e4962..89a70d63 100644
--- a/rust/ingestion/Cargo.toml
+++ b/rust/ingestion/Cargo.toml
@@ -1,6 +1,6 @@
[package]
name = "smooai-smooth-operator-ingestion"
-version = "1.52.0"
+version = "1.52.1"
edition.workspace = true
license.workspace = true
repository.workspace = true
diff --git a/rust/smooth-operator-server/Cargo.toml b/rust/smooth-operator-server/Cargo.toml
index 88b2524f..59baa2e3 100644
--- a/rust/smooth-operator-server/Cargo.toml
+++ b/rust/smooth-operator-server/Cargo.toml
@@ -1,6 +1,6 @@
[package]
name = "smooai-smooth-operator-server"
-version = "1.52.0"
+version = "1.52.1"
edition.workspace = true
license.workspace = true
repository.workspace = true
@@ -35,22 +35,22 @@ smooth-operator = { workspace = true }
smooai-smooth-operator-core = { workspace = true }
# In-memory storage + backplane — ALWAYS included. The local-flavor default and
# the lean (`--no-default-features`) build run entirely on these.
-smooai-smooth-operator-adapter-memory = { path = "../adapters/in-memory", version = "1.52.0" }
+smooai-smooth-operator-adapter-memory = { path = "../adapters/in-memory", version = "1.52.1" }
# Persistent storage + admin-store backends, selected at runtime to match the
# configured storage backend (Postgres / DynamoDB; default in-memory). Optional:
# gated behind the `postgres` / `dynamodb` features so a lean local/embed build
# can exclude tokio-postgres / the AWS SDK. The `postgres` crate also provides the
# gateway-backed embedder/reranker, so the `postgres` feature additionally enables
# the semantic-retrieval path in `embedder.rs` / `reranker.rs`.
-smooai-smooth-operator-adapter-postgres = { path = "../adapters/postgres", version = "1.52.0", optional = true }
-smooai-smooth-operator-adapter-dynamodb = { path = "../adapters/dynamodb", version = "1.52.0", optional = true }
+smooai-smooth-operator-adapter-postgres = { path = "../adapters/postgres", version = "1.52.1", optional = true }
+smooai-smooth-operator-adapter-dynamodb = { path = "../adapters/dynamodb", version = "1.52.1", optional = true }
# Distributed Backplane backends for horizontal scale-out, selected at runtime
# via SMOOTH_AGENT_BACKPLANE (default in-memory / single-process). Optional: gated
# behind the `redis` / `nats` features so a lean build excludes their drivers.
-smooai-smooth-operator-adapter-backplane-redis = { path = "../adapters/backplane-redis", version = "1.52.0", optional = true }
-smooai-smooth-operator-adapter-backplane-nats = { path = "../adapters/backplane-nats", version = "1.52.0", optional = true }
+smooai-smooth-operator-adapter-backplane-redis = { path = "../adapters/backplane-redis", version = "1.52.1", optional = true }
+smooai-smooth-operator-adapter-backplane-nats = { path = "../adapters/backplane-nats", version = "1.52.1", optional = true }
# Admin API surfaces indexing-run status via the ingestion crate's IndexingStore.
-smooai-smooth-operator-ingestion = { path = "../ingestion", version = "1.52.0" }
+smooai-smooth-operator-ingestion = { path = "../ingestion", version = "1.52.1" }
async-trait = { workspace = true }
anyhow = { workspace = true }
diff --git a/rust/smooth-operator/Cargo.toml b/rust/smooth-operator/Cargo.toml
index e5e4af3b..9b1827b0 100644
--- a/rust/smooth-operator/Cargo.toml
+++ b/rust/smooth-operator/Cargo.toml
@@ -1,6 +1,6 @@
[package]
name = "smooai-smooth-operator"
-version = "1.52.0"
+version = "1.52.1"
edition.workspace = true
license.workspace = true
repository.workspace = true
diff --git a/typescript/CHANGELOG.md b/typescript/CHANGELOG.md
index 749def67..661abf43 100644
--- a/typescript/CHANGELOG.md
+++ b/typescript/CHANGELOG.md
@@ -1,5 +1,27 @@
# @smooai/smooth-operator
+## 1.52.1
+
+### Patch Changes
+
+- 888cbef: feat(go): client-initiated turn cancellation — Client.Cancel() + MessageTurn.Cancel()
+
+ The wire protocol and all five servers already honor the `cancel` frame / `cancelled`
+ event, but the Go client had no way to send it. Add the missing client surface, mirroring
+ the TypeScript reference (#459):
+
+ - `Client.Cancel(CancelParams{RequestID, SessionID?})` sends the `cancel` frame.
+ - `MessageTurn.Cancel()` is the ergonomic "stop THIS turn" convenience — it cancels using
+ the turn's own requestId + originating sessionId. Fire-and-forget, idempotent.
+ - A terminal `cancelled` event settles the matching turn as a user-stop: the event is
+ delivered on `Events()`, the channel closes cleanly, `Wait` resolves WITHOUT an error,
+ and `MessageTurn.Cancelled()` reports `true` so a UI tells a user-stop apart from a
+ failure. Errors still go the error path.
+ - `cancel` is now first-class in the `ActionType` set and `cancelled` in the `EventType`
+ set (with `ServerEvent.AsCancelled()`), not stringly-typed.
+ - Idempotent: a cancel with no active turn, or a `cancelled` with no matching turn, is a
+ harmless no-op.
+
## 1.52.0
### Minor Changes
diff --git a/typescript/package.json b/typescript/package.json
index 84c1777c..b139d2f4 100644
--- a/typescript/package.json
+++ b/typescript/package.json
@@ -1,6 +1,6 @@
{
"name": "@smooai/smooth-operator",
- "version": "1.52.0",
+ "version": "1.52.1",
"description": "TypeScript SDK for the smooth-operator WebSocket protocol: the native client (`.`), React bindings (`./react`), and the embeddable web-component chat widget (`./widget`). Generated from the language-neutral JSON Schemas in spec/.",
"license": "MIT",
"type": "module",
diff --git a/typescript/server/CHANGELOG.md b/typescript/server/CHANGELOG.md
index 9d772b7f..116a0a40 100644
--- a/typescript/server/CHANGELOG.md
+++ b/typescript/server/CHANGELOG.md
@@ -1,5 +1,31 @@
# @smooai/smooth-operator-server
+## 1.12.1
+
+### Patch Changes
+
+- 89c5ca7: fix(ts): cancel discards a HITL-parked confirmation so the parked turn drops cleanly
+
+ Cancelling a turn parked at a write-confirmation (HITL) freed the slot and emitted `cancelled`
+ correctly, but the park in `turnRunner.ts` awaits a bare deferred from `ConfirmationRegistry.register`
+ (`const approved = await verdict`) that the turn's `cancelSignal` abort does NOT itself complete. The
+ cancel path already discarded it via a connection-wide `confirmations.rejectAll()`, but that is a
+ broader sweep than the cancel needs.
+
+ `FrameDispatcher.cancelActiveTurn` now discards precisely the cancelled turn's pending confirmation
+ (`confirmations.resolve(turn.sessionId, false)`) after aborting the controller, so the parked await
+ unblocks immediately (resolves denied; the result is dropped because the sink is gagged and the slot
+ is already cleared). `activeTurn` now carries a `sessionId`, stamped where the turn is created in the
+ `send_message` handler. The disconnect path still rejects every outstanding confirmation separately
+ via `rejectPendingConfirmations`, so nothing dangles there. Mirrors the Rust reference dropping the
+ confirmation future on abort and the .NET fix (#460). No behavior change for a non-parked cancel or
+ the no-active-turn no-op.
+
+ Adds a parity test (mirroring the .NET `CancelUnparkTests`) that drives a turn to
+ `write_confirmation_required`, cancels it, and asserts `cancelled` is emitted, a later
+ `confirm_tool_action` returns `NO_PENDING_CONFIRMATION`, the slot is freed (a new `send_message` is
+ accepted), and no stray events leak from the abandoned turn.
+
## 1.12.0
### Minor Changes
diff --git a/typescript/server/package.json b/typescript/server/package.json
index 3301a80c..f9af4302 100644
--- a/typescript/server/package.json
+++ b/typescript/server/package.json
@@ -1,6 +1,6 @@
{
"name": "@smooai/smooth-operator-server",
- "version": "1.12.0",
+ "version": "1.12.1",
"private": true,
"description": "Native TypeScript smooth-operator server: a WebSocket service that speaks the smooth-operator wire protocol and runs the @smooai/smooth-operator-core engine in-process per turn. The TS sibling of the Rust (rust/smooth-operator-server) and C# (dotnet/server) servers; the client lives in ../src and is untouched.",
"license": "MIT",