diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5d019022..b6fc9d1cb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,15 @@
 
 ## [Unreleased]
 
+## [1.30.7] — 2026-07-18
+
+Groundwork for a tidier heart-rate history.
+
+- **The server accepts a 10-minute aggregated heart-rate upload.** A watch records heart rate every few seconds, and uploading one row per raw sample fills the measurements list with the same value repeated many times a minute. The server now takes one row per 10-minute window — its average, with the low and high of the window — and the within-day pulse curve reads it directly, so the detailed 10-minute chart and the elevated-at-rest note are preserved. The de-duplication reaches the list once the mobile app sends the aggregated shape; existing per-sample history is unaffected and reconciles itself over time.
+- **The daily high/low reflects the true spread.** A day built from 10-minute windows now reports the real intra-window extremes, not the range of the averages.
+
+No migration. No breaking changes.
+
 ## [1.30.6] — 2026-07-18
 
 Accessibility pass.
diff --git a/docs/api/openapi.yaml b/docs/api/openapi.yaml
index ebfc5cc5d..6e239e93b 100644
--- a/docs/api/openapi.yaml
+++ b/docs/api/openapi.yaml
@@ -1,7 +1,7 @@
 openapi: 3.1.0
 info:
   title: HealthLog API
-  version: 1.30.6
+  version: 1.30.7
   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 32c841c77..9005d5e30 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "healthlog",
-  "version": "1.30.6",
+  "version": "1.30.7",
   "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 9cb1e51b4..b9fb25a34 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 */ "v1.30.6";
+  /* @sw-version-fallback */ "v1.30.7";
 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/*`