diff --git a/public/sw.js b/public/sw.js
index f778a5239..2fe77d88e 100644
--- a/public/sw.js
+++ b/public/sw.js
@@ -1,7 +1,7 @@
 /**
  * HealthLog service worker: Web Push, a page cache for public pages, and a
- * static cache for catalogs and icons. API answers and app chunks are never
- * stored here.
+ * static cache for catalogs, icons, fonts and images. API answers and app
+ * chunks are never stored here.
  */
 
 // Cache names carry the release, so `activate` drops every older cache. The
@@ -28,7 +28,7 @@ const CURRENT_HEALTHLOG_CACHES = new Set([STATIC_CACHE, PAGE_CACHE]);
 // Set by `src/proxy.ts` on every HealthLog page; same name as there.
 const HEALTHLOG_PAGE_MARKER_HEADER = "X-HealthLog-Page";
 // While set, the fetch handler declines every request. Set when a page looks
-// like another app, cleared when `confirmForeignOrigin` finds HealthLog.
+// like another app, cleared unless the probe confirms another app.
 let foreignOrigin = false;
 // One confirmation at a time, shared by a burst of navigations.
 let foreignOriginCheck = null;
diff --git a/src/__tests__/baselines/version-stamp-comments.json b/src/__tests__/baselines/version-stamp-comments.json
index 7bbae47ac..6f553040c 100644
--- a/src/__tests__/baselines/version-stamp-comments.json
+++ b/src/__tests__/baselines/version-stamp-comments.json
@@ -1,7 +1,7 @@
 {
   "$comment": "Comment lines that open with a release version, per file under src/. Maintained by src/__tests__/version-stamp-ratchet.test.ts.",
-  "count": 2876,
-  "total": 9163,
+  "count": 2875,
+  "total": 9162,
   "entries": {
     "__tests__/account-payload-consumer-guard.test.ts": 2,
     "__tests__/acting-account-boundary-guard.test.ts": 7,
@@ -2581,7 +2581,6 @@
     "lib/notifications/delegated-intake.ts": 2,
     "lib/notifications/dispatch-localised.ts": 3,
     "lib/notifications/dispatcher.ts": 3,
-    "lib/notifications/dose-tag.ts": 1,
     "lib/notifications/medication-intake-sync.ts": 1,
     "lib/notifications/senders/__tests__/apns.test.ts": 7,
     "lib/notifications/senders/__tests__/push-attempt-record.test.ts": 1,
diff --git a/src/hooks/use-auth.ts b/src/hooks/use-auth.ts
index e67541b74..0c84e4924 100644
--- a/src/hooks/use-auth.ts
+++ b/src/hooks/use-auth.ts
@@ -626,10 +626,10 @@ export function useAccountOnceMounted(): AuthUser | null {
  * former explicit `setQueryData(null)` + `invalidateQueries(["auth"])`.
  *
  * Then `clearOfflineCachesForSessionEnd()` wipes the persisted layers — the
- * IndexedDB query snapshot, the SW offline read-data cache (`healthlog-data-*`),
- * and the SW page cache (`healthlog-pages-*`, cached navigation HTML). The static
- * cache (hashed chunks, icons) carries no PII and stays intact to avoid a
- * needless re-download. Best-effort; never blocks the redirect.
+ * IndexedDB query snapshot, the SW page cache (`healthlog-pages-*`, cached
+ * navigation HTML) and any API cache an older worker left (`healthlog-data-*`).
+ * The static cache (catalogs, icons, fonts, images) carries no PII and stays
+ * intact to avoid a needless re-download. Best-effort; never blocks the redirect.
  */
 export function clearCachesForSessionEnd(queryClient: QueryClient): void {
   queryClient.clear();
diff --git a/src/lib/notifications/dose-tag.ts b/src/lib/notifications/dose-tag.ts
index 8b1af83fa..a955fde46 100644
--- a/src/lib/notifications/dose-tag.ts
+++ b/src/lib/notifications/dose-tag.ts
@@ -1,18 +1,10 @@
 /**
- * v1.18.4 — stable Web Push notification tag for a medication dose slot.
+ * Stable notification tag for a medication dose slot, `(medicationId,
+ * scheduledFor instant)`. A repeated reminder for the same dose replaces the
+ * one already shown instead of stacking a second.
  *
- * A PWA self-hoster with no Apple Developer account has no Live Activity to
- * end when a dose is logged. Instead the server pushes a `type: "clear"`
- * web-push that the service worker turns into `getNotifications({ tag })` +
- * `notification.close()`. For that to work the REMINDER push and the CLEAR
- * push must agree on a single, stable tag per dose slot.
- *
- * The slot is uniquely identified by `(medicationId, scheduledFor-instant)`:
- *  - the dose-due reminder fires with `scheduledAt` = the slot's ISO instant,
- *  - the clear-on-taken fires with `scheduledFor` = the same ISO instant.
- *
- * `scheduledFor` is normalised through `Date` so a reminder ISO carrying
- * milliseconds and a clear ISO without them still collapse to one tag.
+ * The instant is normalised through `Date`, so an ISO string with and one
+ * without milliseconds give the same tag.
  */
 export function medicationDoseTag(
   medicationId: string,