diff --git a/.changeset/stream-atomics.md b/.changeset/stream-atomics.md
deleted file mode 100644
index 1df7c2b..0000000
--- a/.changeset/stream-atomics.md
+++ /dev/null
@@ -1,32 +0,0 @@
----
-'moroutine': minor
----
-
-Atomics-based backpressure for streams and channels; new `Int32Atomic#waitAsync` / `#notify`
-
-**New public API on `Int32Atomic`**:
-
-```ts
-const slot = int32atomic();
-// Park until the slot holds a value other than `expected`, with optional timeout.
-await slot.waitAsync(0); // 'ok' | 'not-equal' | 'timed-out'
-await slot.waitAsync(0, 100 /*ms*/);
-// Wake waiters on this slot.
-slot.notify(); // wake all
-slot.notify(2); // wake at most 2
-```
-
-Matches `Atomics.waitAsync` / `Atomics.notify` semantics; returns `'not-equal'` synchronously (no microtask hop) if the slot already holds something different from `expected`.
-
-**Streams and channels use atomics for backpressure**: streaming tasks and `channel()` no longer rely on `pause`/`resume` port messages for flow control. Internally, a `SharedArrayBuffer` tracks per-endpoint `inflight` and `state`; the producer parks on `Atomics.waitAsync` when the `highWaterMark` cap is reached and resumes when the consumer drains below it. Behavior-equivalent and much tighter under backpressure (worst-case buffering drops from ~10-20× `highWaterMark` to `highWaterMark + 1-2`).
-
-**`highWaterMark` option now honored** for both `run(streamTask, { highWaterMark })` and `channel(src, { highWaterMark })`. Previously read and discarded in the streaming path.
-
-**Significant throughput improvements** on streaming and channel fan-out:
-
-- Worker → parent stream: ~66K items/s → ~750K items/s (11×)
-- Round-trip stream: ~39K items/s → ~425K items/s (11×)
-- Channel fan-out at 8 consumers: ~412K items/s → ~546K items/s (+33%)
-- Per-task dispatch: ~289K → ~328K (+14%)
-
-No changes to user-facing API shape beyond the `Int32Atomic` additions.
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2840385..32e11fe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,37 @@
 # moroutine
 
+## 1.2.0
+
+### Minor Changes
+
+- 24741da: Atomics-based backpressure for streams and channels; new `Int32Atomic#waitAsync` / `#notify`
+
+  **New public API on `Int32Atomic`**:
+
+  ```ts
+  const slot = int32atomic();
+  // Park until the slot holds a value other than `expected`, with optional timeout.
+  await slot.waitAsync(0); // 'ok' | 'not-equal' | 'timed-out'
+  await slot.waitAsync(0, 100 /*ms*/);
+  // Wake waiters on this slot.
+  slot.notify(); // wake all
+  slot.notify(2); // wake at most 2
+  ```
+
+  Matches `Atomics.waitAsync` / `Atomics.notify` semantics; returns `'not-equal'` synchronously (no microtask hop) if the slot already holds something different from `expected`.
+
+  **Streams and channels use atomics for backpressure**: streaming tasks and `channel()` no longer rely on `pause`/`resume` port messages for flow control. Internally, a `SharedArrayBuffer` tracks per-endpoint `inflight` and `state`; the producer parks on `Atomics.waitAsync` when the `highWaterMark` cap is reached and resumes when the consumer drains below it. Behavior-equivalent and much tighter under backpressure (worst-case buffering drops from ~10-20× `highWaterMark` to `highWaterMark + 1-2`).
+
+  **`highWaterMark` option now honored** for both `run(streamTask, { highWaterMark })` and `channel(src, { highWaterMark })`. Previously read and discarded in the streaming path.
+
+  **Significant throughput improvements** on streaming and channel fan-out:
+  - Worker → parent stream: ~66K items/s → ~750K items/s (11×)
+  - Round-trip stream: ~39K items/s → ~425K items/s (11×)
+  - Channel fan-out at 8 consumers: ~412K items/s → ~546K items/s (+33%)
+  - Per-task dispatch: ~289K → ~328K (+14%)
+
+  No changes to user-facing API shape beyond the `Int32Atomic` additions.
+
 ## 1.1.0
 
 ### Minor Changes
diff --git a/package.json b/package.json
index bb02275..46cc274 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "moroutine",
-  "version": "1.1.0",
+  "version": "1.2.0",
   "repository": {
     "type": "git",
     "url": "git@tangled.org:divy.zone/moroutine"