diff --git a/.changeset/sep-phase3-ui-sdk.md b/.changeset/sep-phase3-ui-sdk.md
deleted file mode 100644
index fb60bef..0000000
--- a/.changeset/sep-phase3-ui-sdk.md
+++ /dev/null
@@ -1,24 +0,0 @@
----
-"@smooai/smooth-extension-sdk": minor
-"@smooai/smooth-operator": patch
----
-
-SEP Phase 3 (SDK + spec) — the `ui/request` surface.
-
-The extension SDK now exposes the capability-negotiated UI surface. An extension
-reads the host's declared `ui_capabilities` from the `initialize` handshake and
-gates on `smooth.hasUI(kind)` / `ctx.hasUI(kind)`; `ctx.ui` (and `smooth.ui`)
-speak `ui/request` back to the host: `select`/`confirm`/`input` return the user's
-answer (or `{ cancelled: true }`), and `notify`/`setStatus`/`setWidget`/`setTitle`
-push to the frontend. A headless or uncapable host rejects with `RpcError` code
--32001 (NoUI). `createTestHost(ext, { onUiRequest })` scripts the host side; its
-default mimics a headless frontend.
-
-Ships the `todo` demo extension (pi's todo, ported): stateful list whose tools
-push a `keyvalue` `set_widget` render block and whose `clear` asks for `confirm`
-first — both `hasUI`-gated, so it degrades cleanly headless.
-
-Extends `spec/extension/conformance/fixtures.json` with the remaining `ui/request`
-kinds (input/notify/set_status/set_widget/set_title), select/input/cancelled
-results, and invalid cases (unknown kind, missing `options`/`message`, extra
-property).
diff --git a/go/version.go b/go/version.go
index 735b276..cebdf6d 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<Version>); this
 // constant is the anchor that scripts/sync-versions.mjs keeps in sync with the
 // canonical npm version on every changeset release.
-const Version = "1.11.2"
+const Version = "1.11.3"
diff --git a/python/pyproject.toml b/python/pyproject.toml
index e52c223..b5d7015 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "smooai-smooth-operator"
-version = "1.11.2"
+version = "1.11.3"
 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/rust/Cargo.lock b/rust/Cargo.lock
index 93c41ae..3b26f7a 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -3974,7 +3974,7 @@ checksum = "8ed6a63f02c8539c91a8685a86f4099661ba3da017932f6ebbea6de3f0fa7c90"
 
 [[package]]
 name = "smooai-smooth-operator"
-version = "1.11.2"
+version = "1.11.3"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4006,7 +4006,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-backplane-nats"
-version = "1.11.2"
+version = "1.11.3"
 dependencies = [
  "anyhow",
  "async-nats",
@@ -4022,7 +4022,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-backplane-redis"
-version = "1.11.2"
+version = "1.11.3"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4038,7 +4038,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-dynamodb"
-version = "1.11.2"
+version = "1.11.3"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4059,7 +4059,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-memory"
-version = "1.11.2"
+version = "1.11.3"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4072,7 +4072,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-adapter-postgres"
-version = "1.11.2"
+version = "1.11.3"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4158,7 +4158,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-ingestion"
-version = "1.11.2"
+version = "1.11.3"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -4205,7 +4205,7 @@ dependencies = [
 
 [[package]]
 name = "smooai-smooth-operator-server"
-version = "1.11.2"
+version = "1.11.3"
 dependencies = [
  "anyhow",
  "async-trait",
diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index e3505f3..3232121 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -29,7 +29,7 @@ smooai-smooth-operator-core = { path = "../../smooth-operator-core/rust/smooth-o
 # 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 = "1.11.2" }
+smooth-operator = { package = "smooai-smooth-operator", path = "smooth-operator", version = "1.11.3" }
 
 async-trait = "0.1"
 anyhow = "1"
diff --git a/rust/adapters/backplane-nats/Cargo.toml b/rust/adapters/backplane-nats/Cargo.toml
index 6306e3a..9b60fd0 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 = "1.11.2"
+version = "1.11.3"
 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 05cf0ee..ef2ba58 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 = "1.11.2"
+version = "1.11.3"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/rust/adapters/dynamodb/Cargo.toml b/rust/adapters/dynamodb/Cargo.toml
index 04f6896..6faea0e 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 = "1.11.2"
+version = "1.11.3"
 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 = "1.11.2" }
+smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.11.3" }
 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 f25edeb..6dcf586 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 = "1.11.2"
+version = "1.11.3"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/rust/adapters/postgres/Cargo.toml b/rust/adapters/postgres/Cargo.toml
index f9af38d..79a75b9 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 = "1.11.2"
+version = "1.11.3"
 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 = "1.11.2" }
+smooai-smooth-operator-ingestion = { path = "../../ingestion", version = "1.11.3" }
 async-trait = { workspace = true }
 anyhow = { workspace = true }
 chrono = { workspace = true }
diff --git a/rust/ingestion/Cargo.toml b/rust/ingestion/Cargo.toml
index 66a63ce..b61a62e 100644
--- a/rust/ingestion/Cargo.toml
+++ b/rust/ingestion/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator-ingestion"
-version = "1.11.2"
+version = "1.11.3"
 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 7620c26..bef3fc2 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 = "1.11.2"
+version = "1.11.3"
 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 = "1.11.2" }
+smooai-smooth-operator-adapter-memory = { path = "../adapters/in-memory", version = "1.11.3" }
 # 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 = "1.11.2", optional = true }
-smooai-smooth-operator-adapter-dynamodb = { path = "../adapters/dynamodb", version = "1.11.2", optional = true }
+smooai-smooth-operator-adapter-postgres = { path = "../adapters/postgres", version = "1.11.3", optional = true }
+smooai-smooth-operator-adapter-dynamodb = { path = "../adapters/dynamodb", version = "1.11.3", 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 = "1.11.2", optional = true }
-smooai-smooth-operator-adapter-backplane-nats = { path = "../adapters/backplane-nats", version = "1.11.2", optional = true }
+smooai-smooth-operator-adapter-backplane-redis = { path = "../adapters/backplane-redis", version = "1.11.3", optional = true }
+smooai-smooth-operator-adapter-backplane-nats = { path = "../adapters/backplane-nats", version = "1.11.3", optional = true }
 # Admin API surfaces indexing-run status via the ingestion crate's IndexingStore.
-smooai-smooth-operator-ingestion = { path = "../ingestion", version = "1.11.2" }
+smooai-smooth-operator-ingestion = { path = "../ingestion", version = "1.11.3" }
 
 async-trait = { workspace = true }
 anyhow = { workspace = true }
diff --git a/rust/smooth-operator/Cargo.toml b/rust/smooth-operator/Cargo.toml
index 4bc7b05..f84b70d 100644
--- a/rust/smooth-operator/Cargo.toml
+++ b/rust/smooth-operator/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smooai-smooth-operator"
-version = "1.11.2"
+version = "1.11.3"
 edition.workspace = true
 license.workspace = true
 repository.workspace = true
diff --git a/typescript/CHANGELOG.md b/typescript/CHANGELOG.md
index d75f489..e711066 100644
--- a/typescript/CHANGELOG.md
+++ b/typescript/CHANGELOG.md
@@ -1,5 +1,29 @@
 # @smooai/smooth-operator
 
+## 1.11.3
+
+### Patch Changes
+
+- a36ee69: SEP Phase 3 (SDK + spec) — the `ui/request` surface.
+
+  The extension SDK now exposes the capability-negotiated UI surface. An extension
+  reads the host's declared `ui_capabilities` from the `initialize` handshake and
+  gates on `smooth.hasUI(kind)` / `ctx.hasUI(kind)`; `ctx.ui` (and `smooth.ui`)
+  speak `ui/request` back to the host: `select`/`confirm`/`input` return the user's
+  answer (or `{ cancelled: true }`), and `notify`/`setStatus`/`setWidget`/`setTitle`
+  push to the frontend. A headless or uncapable host rejects with `RpcError` code
+  -32001 (NoUI). `createTestHost(ext, { onUiRequest })` scripts the host side; its
+  default mimics a headless frontend.
+
+  Ships the `todo` demo extension (pi's todo, ported): stateful list whose tools
+  push a `keyvalue` `set_widget` render block and whose `clear` asks for `confirm`
+  first — both `hasUI`-gated, so it degrades cleanly headless.
+
+  Extends `spec/extension/conformance/fixtures.json` with the remaining `ui/request`
+  kinds (input/notify/set_status/set_widget/set_title), select/input/cancelled
+  results, and invalid cases (unknown kind, missing `options`/`message`, extra
+  property).
+
 ## 1.11.2
 
 ### Patch Changes
diff --git a/typescript/extension-sdk/CHANGELOG.md b/typescript/extension-sdk/CHANGELOG.md
index 89be22c..c48e244 100644
--- a/typescript/extension-sdk/CHANGELOG.md
+++ b/typescript/extension-sdk/CHANGELOG.md
@@ -1,5 +1,29 @@
 # @smooai/smooth-extension-sdk
 
+## 0.4.0
+
+### Minor Changes
+
+- a36ee69: SEP Phase 3 (SDK + spec) — the `ui/request` surface.
+
+  The extension SDK now exposes the capability-negotiated UI surface. An extension
+  reads the host's declared `ui_capabilities` from the `initialize` handshake and
+  gates on `smooth.hasUI(kind)` / `ctx.hasUI(kind)`; `ctx.ui` (and `smooth.ui`)
+  speak `ui/request` back to the host: `select`/`confirm`/`input` return the user's
+  answer (or `{ cancelled: true }`), and `notify`/`setStatus`/`setWidget`/`setTitle`
+  push to the frontend. A headless or uncapable host rejects with `RpcError` code
+  -32001 (NoUI). `createTestHost(ext, { onUiRequest })` scripts the host side; its
+  default mimics a headless frontend.
+
+  Ships the `todo` demo extension (pi's todo, ported): stateful list whose tools
+  push a `keyvalue` `set_widget` render block and whose `clear` asks for `confirm`
+  first — both `hasUI`-gated, so it degrades cleanly headless.
+
+  Extends `spec/extension/conformance/fixtures.json` with the remaining `ui/request`
+  kinds (input/notify/set_status/set_widget/set_title), select/input/cancelled
+  results, and invalid cases (unknown kind, missing `options`/`message`, extra
+  property).
+
 ## 0.3.0
 
 ### Minor Changes
diff --git a/typescript/extension-sdk/package.json b/typescript/extension-sdk/package.json
index 4cd5544..f1b52af 100644
--- a/typescript/extension-sdk/package.json
+++ b/typescript/extension-sdk/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@smooai/smooth-extension-sdk",
-    "version": "0.3.0",
+    "version": "0.4.0",
     "description": "TypeScript SDK for building Smooth Extension Protocol (SEP) extensions: `defineExtension`, `defineTool`, a stdio JSON-RPC transport, an in-process test host, and a conformance runner. Extensions are subprocesses speaking JSON-RPC 2.0 ndjson to any SEP host (smooth-operator-core and its polyglot servers).",
     "license": "MIT",
     "type": "module",
diff --git a/typescript/package.json b/typescript/package.json
index ac876b6..ec8f905 100644
--- a/typescript/package.json
+++ b/typescript/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@smooai/smooth-operator",
-    "version": "1.11.2",
+    "version": "1.11.3",
     "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",