diff --git a/CHANGELOG.md b/CHANGELOG.md
index 50fdb12c5..981f8f156 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,36 @@
 
 ## [Unreleased]
 
+## [1.35.3] — 2026-08-01
+
+### Added
+
+- Apple Watch ECG recordings can now be sent directly by the iOS app, through a
+  new endpoint at `POST /api/insights/ecg`, instead of only arriving inside an
+  export archive. One recording travels per request, and the endpoint is gated
+  by the same module and status switches that already govern reading ECGs, so an
+  account with the surface switched off is unaffected.
+
+### Changed
+
+- A recording carries its own identity, so sending the same one again resolves
+  to the same record. A strip that arrives once inside an export archive and
+  again from the app ends up as a single entry rather than a duplicate or an
+  error.
+
+### Migration
+
+- This release removes duplicate ECG recordings. An existing database can hold
+  more than one row for the same recording, because the export archive and a
+  live client name the same strip differently. A uniqueness rule now prevents
+  that, and the migration resolves what is already stored before applying it.
+  Where two rows describe the same recording, it keeps the one holding the actual
+  waveform over one holding only a verdict, and it carries a removed row's link
+  to its rhythm event onto the row that is kept, so resolving a duplicate never
+  costs the recording its place in the timeline. Rows that lose are deleted, and
+  they cannot be recovered. Back up the database before deploying if that matters
+  for your instance.
+
 ## [1.35.2] — 2026-08-01
 
 ### Added
diff --git a/docs/api/openapi.yaml b/docs/api/openapi.yaml
index 17a7f0cc2..01bb4b8d6 100644
--- a/docs/api/openapi.yaml
+++ b/docs/api/openapi.yaml
@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: HealthLog API
-  version: 1.35.2
+  version: 1.35.3
   description: >-
     Self-hosted personal-health-tracking PWA — public API surface for the iOS native client and external ingest.
 
diff --git a/package.json b/package.json
index 328052eaf..96e4eeb1f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "healthlog",
-  "version": "1.35.2",
+  "version": "1.35.3",
   "description": "Self-hosted personal-health-tracking PWA with Withings integration, AI insights, and doctor-report PDF export.",
   "license": "PolyForm-Noncommercial-1.0.0",
   "homepage": "https://healthlog.dev",
diff --git a/public/sw.js b/public/sw.js
index 7bc9df343..23a1b22c7 100644
--- a/public/sw.js
+++ b/public/sw.js
@@ -36,7 +36,7 @@ try {
 // v1.4.38.4 → v1.4.42. Do not hand-edit; bump `package.json` and rebuild.
 const CACHE_VERSION =
   (typeof self !== "undefined" && self.__APP_VERSION__) ||
-  /* @sw-version-fallback */ "v1.35.2";
+  /* @sw-version-fallback */ "v1.35.3";
 const STATIC_CACHE = `healthlog-static-${CACHE_VERSION}`;
 const PAGE_CACHE = `healthlog-pages-${CACHE_VERSION}`;
 // v1.18.6 — read-only data cache for a curated allowlist of safe GET `/api/*`