diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3e1146c..c00fc83 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,23 @@
 # Changelog
 
+## 1.4.0 (2026-07-14)
+
+Parity release with `statewave` server v1.4.0 — no SDK behavior changes since v1.2.0.
+
+- **`__version__` corrected** — `statewave.__version__` now matches the packaged `pyproject.toml` version. It had been frozen at `1.0.0` since the v1.0 line was cut; this release closes the drift.
+- CI: `actions/checkout` bumped to v7.
+- Docs: `SECURITY.md` reference updated from the retired `statewave-bench` repo to `statewave-memory-benchmarks`.
+
+The v1.2.0 features (per-call `timeout=` override, `CancelledError` propagation on abort) remain the current SDK surface.
+
+## 1.2.0 (2026-06-17 — CHANGELOG backfill)
+
+The 1.2.0 release notes were never written; recording them here for completeness.
+
+- **Per-call timeout override** — every read/write method accepts an optional `timeout=` kwarg (sync + async) that overrides the client's default for that one call.
+- **`CancelledError` propagation** — an `asyncio.CancelledError` raised during a request now propagates immediately instead of being caught and retried as a transient failure. Aborting an in-flight call is honored.
+- Internal refactor for maintainability; unused imports cleaned up.
+
 ## 1.1.0 (2026-06-12)
 
 - `create_episode` (sync + async) accepts an optional `idempotency_key`. Re-ingesting an episode with the same key is a no-op server-side (the server returns the existing episode), so re-running a backfill or retrying a request no longer duplicates episodes. `create_episodes_batch` already forwards the key when present in each episode dict.
diff --git a/pyproject.toml b/pyproject.toml
index 0b72d44..f3586a9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "statewave"
-version = "1.2.0"
+version = "1.4.0"
 description = "Official Python SDK for Statewave — the open-source memory runtime for AI agents."
 readme = "README.md"
 license = {text = "Apache-2.0"}
diff --git a/statewave/__init__.py b/statewave/__init__.py
index ba57ebd..d6ac1a1 100644
--- a/statewave/__init__.py
+++ b/statewave/__init__.py
@@ -1,6 +1,6 @@
 """Statewave Python SDK."""
 
-__version__ = "1.0.0"
+__version__ = "1.4.0"
 
 from statewave.client import AsyncStatewaveClient, StatewaveClient, RetryConfig, DEFAULT_RETRY, NO_RETRY
 from statewave.exceptions import (