diff --git a/src/app/insights/blood-pressure/page.tsx b/src/app/insights/blood-pressure/page.tsx
index 7cb330f84..f5f6d3b9a 100644
--- a/src/app/insights/blood-pressure/page.tsx
+++ b/src/app/insights/blood-pressure/page.tsx
@@ -160,6 +160,7 @@ export default function InsightsBlutdruckPage() {
         unit="mmHg"
         yAxisUnit="mmHg"
         targetZones={bpTargetZones}
+        targetSettingsHref="/settings/thresholds"
         compareBaseline={compareBaseline}
         userTimezone={user?.timezone}
         onVisibleStats={onVisibleStats}
diff --git a/src/app/insights/weight/page.tsx b/src/app/insights/weight/page.tsx
index b31c56ede..c1b946e72 100644
--- a/src/app/insights/weight/page.tsx
+++ b/src/app/insights/weight/page.tsx
@@ -106,6 +106,7 @@ export default function InsightsGewichtPage() {
         colors={["#bd93f9"]}
         unit="kg"
         valueBands={weightBands}
+        targetSettingsHref="/settings/thresholds"
         compareBaseline={compareBaseline}
         userTimezone={user?.timezone}
         onVisibleStats={onVisibleStats}
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index 32757cd95..caae60d0c 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -120,7 +120,13 @@ export default async function RootLayout({
         <Providers initialLocale={initialLocale}>
           <MonitoringBootstrap />
           <WebVitalsReporter />
-          <AuthShell>{children}</AuthShell>
+          {/* `DEMO_MODE` is a server-only env var; the proxy uses it to
+              block mutations. Resolve it here (server component) and
+              thread the boolean into the client shell so the demo
+              banner can render without a client-side detection path. */}
+          <AuthShell demoMode={process.env.DEMO_MODE === "true"}>
+            {children}
+          </AuthShell>
         </Providers>
       </body>
     </html>
diff --git a/src/app/page.tsx b/src/app/page.tsx
index 0b940eb31..682319fb9 100644
--- a/src/app/page.tsx
+++ b/src/app/page.tsx
@@ -1424,6 +1424,7 @@ export default function DashboardPage() {
                 colors={["#bd93f9"]}
                 unit="kg"
                 valueBands={weightBands}
+                targetSettingsHref="/settings/thresholds"
                 compareBaseline={compareBaseline}
                 userTimezone={user?.timezone}
               />
@@ -1470,6 +1471,7 @@ export default function DashboardPage() {
                 unit="mmHg"
                 yAxisUnit="Hg"
                 targetZones={bpTargetZones}
+                targetSettingsHref="/settings/thresholds"
                 compareBaseline={compareBaseline}
                 userTimezone={user?.timezone}
               />
diff --git a/src/components/charts/health-chart.tsx b/src/components/charts/health-chart.tsx
index d7462e195..ea5243b18 100644
--- a/src/components/charts/health-chart.tsx
+++ b/src/components/charts/health-chart.tsx
@@ -17,7 +17,8 @@ import {
   ReferenceArea,
   ReferenceDot,
 } from "recharts";
-import { Loader2 } from "lucide-react";
+import { Loader2, SlidersHorizontal } from "lucide-react";
+import Link from "next/link";
 import {
   useState,
   useMemo,
@@ -106,6 +107,15 @@ interface HealthChartProps {
     textColor?: string;
     lineOpacity?: number;
   }>;
+  /**
+   * Optional href for a small "adjust targets" link in the chart
+   * header. Callers whose charts paint a target band / zones (weight,
+   * blood pressure) pass `/settings/thresholds` so the band's origin —
+   * and the page that edits personal target ranges — is one click
+   * away. Omitted (every other mount) renders no link. Ignored in
+   * `mini` mode, which has no header.
+   */
+  targetSettingsHref?: string;
   /**
    * v1.4.16 phase B5c — compact chart mode used by the Oura-style
    * rationale card. Drops the range tabs, the moving-average / trend
@@ -514,6 +524,7 @@ export function HealthChart({
   showYAxisUnit = true,
   valueBands,
   targetZones,
+  targetSettingsHref,
   mini = false,
   windowOverride,
   compareBaseline = "none",
@@ -1444,6 +1455,19 @@ export function HealthChart({
                 )}
               </span>
             )}
+            {/* Discoverability link from the painted target band to the
+                page that edits personal target ranges. Only mounts when
+                a caller passes `targetSettingsHref` (weight + BP). */}
+            {targetSettingsHref ? (
+              <Link
+                href={targetSettingsHref}
+                data-slot="chart-target-settings-link"
+                className="text-muted-foreground hover:text-foreground inline-flex items-center gap-1 text-xs underline-offset-2 transition-colors hover:underline"
+              >
+                <SlidersHorizontal className="h-3 w-3" aria-hidden="true" />
+                {t("charts.adjustTargets")}
+              </Link>
+            ) : null}
           </div>
           <div
             className="flex flex-nowrap items-center justify-end gap-1 self-end sm:self-auto"
diff --git a/src/components/charts/medication-compliance-chart.tsx b/src/components/charts/medication-compliance-chart.tsx
index e791a09c2..1e01e4c1f 100644
--- a/src/components/charts/medication-compliance-chart.tsx
+++ b/src/components/charts/medication-compliance-chart.tsx
@@ -46,6 +46,7 @@ import {
   ReferenceLine,
 } from "recharts";
 import { ArrowDown, ArrowRight, ArrowUp, Loader2, Pill } from "lucide-react";
+import { ComplianceInfoTip } from "@/components/medications/card-parts/compliance-info-tip";
 import { Button } from "@/components/ui/button";
 import { useAuth } from "@/hooks/use-auth";
 import { useTranslations, useFormatters } from "@/lib/i18n/context";
@@ -329,6 +330,9 @@ export function MedicationComplianceChart({
         <div className="flex flex-wrap items-center gap-2">
           <Pill className="text-muted-foreground h-4 w-4" />
           <h3 className="text-sm font-semibold">{displayTitle}</h3>
+          {/* `?` explainer for what the adherence percentage measures —
+              shares the i18n body with the per-card bars. */}
+          <ComplianceInfoTip />
           {/* v1.4.18 — 7-day trend chip is now opt-in via the
               "7-day trend" overlay toggle. Default OFF; the user
               activates it from the chart settings popover. */}
diff --git a/src/components/doctor-report/__tests__/doctor-report-section-toggles.test.tsx b/src/components/doctor-report/__tests__/doctor-report-section-toggles.test.tsx
index 833c6560d..27c4d2a58 100644
--- a/src/components/doctor-report/__tests__/doctor-report-section-toggles.test.tsx
+++ b/src/components/doctor-report/__tests__/doctor-report-section-toggles.test.tsx
@@ -61,7 +61,7 @@ describe("<SectionToggles> v1.4.43 M4 disabled-row behaviour", () => {
       /data-unavailable="true"[\s\S]*?Resting pulse/,
     );
     expect(html).toMatch(
-      /data-unavailable="true"[\s\S]*?Medication compliance/,
+      /data-unavailable="true"[\s\S]*?Medication adherence/,
     );
     expect(html).toMatch(/data-unavailable="true"[\s\S]*?Sleep duration/);
 
@@ -168,7 +168,7 @@ describe("<SectionToggles> v1.4.43 M4 disabled-row behaviour", () => {
     );
     // The compliance row exists and is marked unavailable…
     expect(html).toMatch(
-      /data-unavailable="true"[\s\S]*?Medication compliance/,
+      /data-unavailable="true"[\s\S]*?Medication adherence/,
     );
     // …and the disabled switch is rendered (aria-disabled or
     // data-disabled survives in the SSR markup).
diff --git a/src/components/insights/__tests__/correlation-card.test.tsx b/src/components/insights/__tests__/correlation-card.test.tsx
index 0e0937984..72c6df732 100644
--- a/src/components/insights/__tests__/correlation-card.test.tsx
+++ b/src/components/insights/__tests__/correlation-card.test.tsx
@@ -61,8 +61,8 @@ describe("<CorrelationCard>", () => {
   it("renders title + subtitle + interpretation when status=ok", () => {
     const html = render(<CorrelationCard result={okResult} />);
     expect(html).toMatch(/data-slot="correlation-card"/);
-    expect(html).toContain("BP × medication compliance");
-    expect(html).toContain("Daily systolic against compliance %");
+    expect(html).toContain("BP × medication adherence");
+    expect(html).toContain("Daily systolic against adherence in %");
     expect(html).toContain("a pattern worth watching");
   });
 
@@ -99,7 +99,7 @@ describe("<CorrelationCard>", () => {
 
   it("renders German copy when locale=de", () => {
     const html = render(<CorrelationCard result={okResult} />, "de");
-    expect(html).toContain("BD × Medikamenten-Compliance");
+    expect(html).toContain("BD × Therapietreue");
     expect(html).toContain("7-Tage-Experiment");
   });
 
diff --git a/src/components/insights/__tests__/health-score-delta-explainer.test.tsx b/src/components/insights/__tests__/health-score-delta-explainer.test.tsx
index ccec3dbd1..7ef0d6b1f 100644
--- a/src/components/insights/__tests__/health-score-delta-explainer.test.tsx
+++ b/src/components/insights/__tests__/health-score-delta-explainer.test.tsx
@@ -149,7 +149,7 @@ describe("<HealthScoreDeltaExplainer>", () => {
     expect(body).not.toBeNull();
     const text = body?.[1] ?? "";
     // Components — window — action triad pinned.
-    expect(text).toContain("BP, weight, mood and meds");
+    expect(text).toContain("BP, weight, mood and medication adherence");
     expect(text).toContain("same time last week");
     expect(text).toContain("Log a fresh reading");
     // 3-sentence ceiling. Soft check: at most 4 sentence-ending
@@ -171,7 +171,7 @@ describe("<HealthScoreDeltaExplainer>", () => {
     const text = body?.[1] ?? "";
     expect(text).toContain("Blutdruck");
     expect(text).toContain("Stimmung");
-    expect(text).toContain("Einnahmetreue");
+    expect(text).toContain("Therapietreue");
     expect(text).toContain("vor einer Woche");
   });
 
diff --git a/src/components/layout/auth-shell.tsx b/src/components/layout/auth-shell.tsx
index 9d0a5aff3..b534791f2 100644
--- a/src/components/layout/auth-shell.tsx
+++ b/src/components/layout/auth-shell.tsx
@@ -10,6 +10,7 @@ import { useAuth } from "@/hooks/use-auth";
 import { useTranslations } from "@/lib/i18n/context";
 import { CoachLaunchProvider } from "@/lib/insights/coach-launch-context";
 import { BottomNav } from "./bottom-nav";
+import { DemoBanner } from "./demo-banner";
 import { OfflineBanner } from "./offline-banner";
 import { SidebarNav } from "./sidebar-nav";
 import { TopBar } from "./top-bar";
@@ -32,7 +33,18 @@ const PUBLIC_PATHS = [
   "/c/",
 ];
 
-export function AuthShell({ children }: { children: React.ReactNode }) {
+export function AuthShell({
+  children,
+  demoMode = false,
+}: {
+  children: React.ReactNode;
+  /**
+   * True when the instance runs with `DEMO_MODE=true` (resolved by the
+   * server-side root layout). Renders the persistent demo banner above
+   * the app chrome so a visitor knows mutations won't persist.
+   */
+  demoMode?: boolean;
+}) {
   const { user, isAuthenticated, isLoading } = useAuth();
   const { t } = useTranslations();
   const pathname = usePathname();
@@ -119,6 +131,7 @@ export function AuthShell({ children }: { children: React.ReactNode }) {
     }
     return (
       <div className="flex h-dvh flex-col">
+        {demoMode ? <DemoBanner /> : null}
         <MaintainershipBanner />
         <main
           id="main-content"
@@ -197,6 +210,11 @@ export function AuthShell({ children }: { children: React.ReactNode }) {
             the first chrome line a user sees in the offline branch.
           */}
           <OfflineBanner />
+          {/* Demo instances surface a persistent "changes are not
+              saved" strip — the proxy blocks every mutation, and
+              without the banner that block only surfaced as a raw API
+              error after the user already filled in a form. */}
+          {demoMode ? <DemoBanner /> : null}
           <MaintainershipBanner />
           <TopBar />
           <main
diff --git a/src/components/layout/bottom-nav.tsx b/src/components/layout/bottom-nav.tsx
index f308061cf..181e0d7e6 100644
--- a/src/components/layout/bottom-nav.tsx
+++ b/src/components/layout/bottom-nav.tsx
@@ -3,6 +3,7 @@
 import {
   Activity,
   Bell,
+  Bug,
   Droplets,
   Dumbbell,
   Home,
@@ -17,6 +18,7 @@ import {
 import Link from "next/link";
 import { usePathname } from "next/navigation";
 import { useState } from "react";
+import { useAppSettings } from "@/components/app-settings-provider";
 import { useAuth } from "@/hooks/use-auth";
 import {
   Sheet,
@@ -80,18 +82,38 @@ const CYCLE_HUB_ITEM: NavLink = {
   icon: Droplets,
 };
 
+// The bug-report entry, spliced into the More hub under the same
+// `bugReportEnabled` operator flag that gates the desktop sidebar
+// entry. Pre-splice the route was desktop-only — a phone user had no
+// path to `/bugreport` at all.
+const BUGREPORT_HUB_ITEM: NavLink = {
+  href: "/bugreport",
+  tKey: "nav.bugreport",
+  icon: Bug,
+};
+
 export function BottomNav() {
   const pathname = usePathname();
   const { t } = useTranslations();
   const { user } = useAuth();
+  const { bugReportEnabled } = useAppSettings();
   const [moreOpen, setMoreOpen] = useState(false);
   const [captureOpen, setCaptureOpen] = useState(false);
 
   // v1.15.0 — splice the cycle entry into the More hub after Mood when the
   // account's gate is on, so it never appears for accounts without it.
-  const moreHub: ReadonlyArray<NavLink> = user?.cycleTrackingEnabled
+  const cycleAwareHub: ReadonlyArray<NavLink> = user?.cycleTrackingEnabled
     ? [MORE_HUB[0], MORE_HUB[1], CYCLE_HUB_ITEM, ...MORE_HUB.slice(2)]
     : MORE_HUB;
+  // Bug report sits directly before Settings (the hub's last entry)
+  // when the operator flag is on — same gate as the desktop sidebar.
+  const moreHub: ReadonlyArray<NavLink> = bugReportEnabled
+    ? [
+        ...cycleAwareHub.slice(0, -1),
+        BUGREPORT_HUB_ITEM,
+        cycleAwareHub[cycleAwareHub.length - 1],
+      ]
+    : cycleAwareHub;
 
   function isActiveLink(href: string) {
     return href === "/" ? pathname === "/" : pathname.startsWith(href);
diff --git a/src/components/layout/demo-banner.tsx b/src/components/layout/demo-banner.tsx
new file mode 100644
index 000000000..af0b3f123
--- /dev/null
+++ b/src/components/layout/demo-banner.tsx
@@ -0,0 +1,38 @@
+"use client";
+
+import { FlaskConical } from "lucide-react";
+
+import { useTranslations } from "@/lib/i18n/context";
+
+/**
+ * Slim persistent banner shown while the instance runs with
+ * `DEMO_MODE=true`. The proxy already blocks every mutation outside a
+ * small allowlist (`src/proxy.ts`), but pre-banner the only feedback a
+ * demo visitor got was an English API error after submitting a form.
+ * This strip tells the visitor up front that nothing they change will
+ * persist.
+ *
+ * Mount strategy mirrors `<OfflineBanner>`: rendered once inside
+ * `<AuthShell>` so every routed page inherits it. The flag itself is a
+ * server-only env var, so the root layout (a server component) reads
+ * `process.env.DEMO_MODE` and threads the boolean through the
+ * `demoMode` prop on `<AuthShell>` — no client-side detection, no
+ * extra request.
+ *
+ * Copy lives in `messages/*.json` under `demoBanner.message`; all six
+ * locales ship together.
+ */
+export function DemoBanner() {
+  const { t } = useTranslations();
+
+  return (
+    <div
+      role="status"
+      data-slot="demo-banner"
+      className="bg-primary/10 border-primary/30 text-foreground flex items-center justify-center gap-2 border-b px-3 py-2 text-xs"
+    >
+      <FlaskConical className="h-3.5 w-3.5 shrink-0" aria-hidden="true" />
+      <span className="text-center">{t("demoBanner.message")}</span>
+    </div>
+  );
+}
diff --git a/src/components/layout/sidebar-nav.tsx b/src/components/layout/sidebar-nav.tsx
index ba4cf3670..7ee72dbc9 100644
--- a/src/components/layout/sidebar-nav.tsx
+++ b/src/components/layout/sidebar-nav.tsx
@@ -9,6 +9,7 @@ import {
   ChevronsRight,
   Droplets,
   Home,
+  Info,
   Lightbulb,
   LogOut,
   Monitor,
@@ -156,10 +157,18 @@ function SidebarUserSection({ collapsed }: { collapsed: boolean }) {
           {t("nav.notifications")}
         </Link>
       </DropdownMenuItem>
-      {/* v1.4.36 W4e — About moved into the Admin Console
-          (`/admin/about`). Admins reach it through the Admin sidebar
-          and the mobile section strip; non-admin users see the
-          public `/about` landing instead. */}
+      {/* "About HealthLog" links the signed-in `/settings/about`
+          section (version, licences, update check). The slug also has
+          its own entry at the end of the settings shell nav; this
+          dropdown item keeps the historic discovery path alive. The
+          public `/about` landing stays separate for signed-out
+          visitors. */}
+      <DropdownMenuItem asChild>
+        <Link href="/settings/about" className="cursor-pointer">
+          <Info className="mr-2 h-4 w-4" />
+          {t("nav.about")}
+        </Link>
+      </DropdownMenuItem>
       <DropdownMenuSub>
         <DropdownMenuSubTrigger>
           {themeIcon}
diff --git a/src/components/medications/__tests__/card-parts.test.tsx b/src/components/medications/__tests__/card-parts.test.tsx
index 044ab318b..8619ad4ca 100644
--- a/src/components/medications/__tests__/card-parts.test.tsx
+++ b/src/components/medications/__tests__/card-parts.test.tsx
@@ -49,8 +49,8 @@ describe("medication card-parts — shared presentational components", () => {
     const html = render(
       <MedicationComplianceBars rate7={90} rate30={88} streak={5} />,
     );
-    expect(html).toContain("7-day compliance");
-    expect(html).toContain("30-day compliance");
+    expect(html).toContain("Adherence (7 days)");
+    expect(html).toContain("Adherence (30 days)");
     expect(html).toContain("90%");
     expect(html).toContain("88%");
     expect(html).toContain("lucide-flame");
@@ -72,10 +72,10 @@ describe("medication card-parts — shared presentational components", () => {
         longDays={365}
       />,
     );
-    expect(html).toContain("90-day compliance");
-    expect(html).toContain("365-day compliance");
-    expect(html).not.toContain("7-day compliance");
-    expect(html).not.toContain("30-day compliance");
+    expect(html).toContain("Adherence (90 days)");
+    expect(html).toContain("Adherence (365 days)");
+    expect(html).not.toContain("Adherence (7 days)");
+    expect(html).not.toContain("Adherence (30 days)");
   });
 
   it("compliance bars hide the streak flame when streak is zero", () => {
@@ -99,8 +99,8 @@ describe("medication card-parts — shared presentational components", () => {
     expect(html).not.toContain("·");
     expect(html).not.toContain("doses");
     // The bar + the window-days label survive.
-    expect(html).toContain("7-day compliance");
-    expect(html).toContain("30-day compliance");
+    expect(html).toContain("Adherence (7 days)");
+    expect(html).toContain("Adherence (30 days)");
   });
 
   it("status pill stamps the success token + take-now glyph in window", () => {
diff --git a/src/components/medications/__tests__/dose-history-ledger-compute.test.ts b/src/components/medications/__tests__/dose-history-ledger-compute.test.ts
index a58de133c..b61b2bdf0 100644
--- a/src/components/medications/__tests__/dose-history-ledger-compute.test.ts
+++ b/src/components/medications/__tests__/dose-history-ledger-compute.test.ts
@@ -3,6 +3,7 @@ import { describe, expect, it } from "vitest";
 import {
   applyOptimisticSlotMark,
   complianceFromLedger,
+  formatSlotDelta,
   groupLedgerByDay,
   isSlotActionable,
   type LedgerPayload,
@@ -109,6 +110,33 @@ describe("isSlotActionable", () => {
   });
 });
 
+// v1.15.20 — the signed offset on the ad-hoc "fällig gewesen" subline.
+describe("formatSlotDelta", () => {
+  const slot = "2026-06-01T05:00:00.000Z";
+
+  it("renders a take after the slot with a plus sign in minutes", () => {
+    expect(formatSlotDelta("2026-06-01T05:45:00.000Z", slot)).toBe("+45 min");
+  });
+
+  it("renders a take before the slot with a minus sign", () => {
+    expect(formatSlotDelta("2026-06-01T04:30:00.000Z", slot)).toBe("-30 min");
+  });
+
+  it("renders whole hours without a minutes part", () => {
+    expect(formatSlotDelta("2026-06-01T07:00:00.000Z", slot)).toBe("+2 h");
+  });
+
+  it("renders mixed hours + minutes", () => {
+    expect(formatSlotDelta("2026-06-01T06:20:00.000Z", slot)).toBe(
+      "+1 h 20 min",
+    );
+  });
+
+  it("collapses a sub-minute delta to +0 min", () => {
+    expect(formatSlotDelta("2026-06-01T05:00:20.000Z", slot)).toBe("+0 min");
+  });
+});
+
 describe("applyOptimisticSlotMark", () => {
   const payload: LedgerPayload = {
     from: "2026-06-01T00:00:00.000Z",
diff --git a/src/components/medications/card-parts/compliance-info-tip.tsx b/src/components/medications/card-parts/compliance-info-tip.tsx
new file mode 100644
index 000000000..efed854c2
--- /dev/null
+++ b/src/components/medications/card-parts/compliance-info-tip.tsx
@@ -0,0 +1,63 @@
+"use client";
+
+import { useState } from "react";
+import { HelpCircle } from "lucide-react";
+
+import {
+  Popover,
+  PopoverContent,
+  PopoverTrigger,
+} from "@/components/ui/popover";
+import { useTranslations } from "@/lib/i18n/context";
+import { cn } from "@/lib/utils";
+
+/**
+ * Small `?` affordance that explains what the adherence percentage
+ * actually measures ("share of expected doses you logged — weekly
+ * schedules count week by week"). Sits next to the number on the two
+ * surfaces that render an adherence rate without context: the
+ * dashboard compliance card header and the per-medication bars
+ * (`medication-compliance-bars.tsx`).
+ *
+ * Pattern follows `health-score-delta-explainer.tsx` (icon-only
+ * trigger, 44 px hit target collapsed back to the row's stride via
+ * negative margins). A click-opened Popover is used on every viewport
+ * — unlike a hover Tooltip it stays reachable on touch devices, where
+ * the medication cards see most of their use.
+ */
+export function ComplianceInfoTip({ className }: { className?: string }) {
+  const { t } = useTranslations();
+  const [open, setOpen] = useState(false);
+
+  return (
+    <Popover open={open} onOpenChange={setOpen}>
+      <PopoverTrigger asChild>
+        <button
+          type="button"
+          data-slot="compliance-info-trigger"
+          aria-label={t("medications.complianceInfoLabel")}
+          aria-expanded={open}
+          className={cn(
+            "text-muted-foreground hover:text-foreground focus-visible:ring-ring/50",
+            "inline-flex min-h-11 min-w-11 shrink-0 items-center justify-center rounded-full",
+            "-mx-2 -my-3",
+            "transition-colors focus-visible:ring-2 focus-visible:outline-none",
+            className,
+          )}
+        >
+          <HelpCircle className="h-3 w-3" aria-hidden="true" />
+        </button>
+      </PopoverTrigger>
+      <PopoverContent
+        data-slot="compliance-info-body"
+        align="start"
+        sideOffset={6}
+        className="max-w-xs"
+      >
+        <p className="text-muted-foreground text-xs leading-snug">
+          {t("medications.complianceInfo")}
+        </p>
+      </PopoverContent>
+    </Popover>
+  );
+}
diff --git a/src/components/medications/card-parts/medication-compliance-bars.tsx b/src/components/medications/card-parts/medication-compliance-bars.tsx
index df38c8288..630bf52a3 100644
--- a/src/components/medications/card-parts/medication-compliance-bars.tsx
+++ b/src/components/medications/card-parts/medication-compliance-bars.tsx
@@ -1,5 +1,6 @@
 import { Flame } from "lucide-react";
 
+import { ComplianceInfoTip } from "@/components/medications/card-parts/compliance-info-tip";
 import { Progress } from "@/components/ui/progress";
 import { useTranslations, useFormatters } from "@/lib/i18n/context";
 
@@ -64,7 +65,13 @@ export function MedicationComplianceBars({
     <div className="space-y-2.5">
       <div className="space-y-1.5">
         <div className="flex items-center justify-between text-sm">
-          <span className="text-muted-foreground">{shortLabel}</span>
+          <span className="text-muted-foreground flex items-center gap-1">
+            {shortLabel}
+            {/* One `?` for the whole block — both rows measure the same
+                thing over different windows, so a second trigger on the
+                long row would only add noise. */}
+            <ComplianceInfoTip />
+          </span>
           <span className="font-medium">{shortPct}%</span>
         </div>
         {/* aria-label so the bar has an accessible name. */}
diff --git a/src/components/medications/dose-history-ledger-compute.ts b/src/components/medications/dose-history-ledger-compute.ts
index ce0009456..514274974 100644
--- a/src/components/medications/dose-history-ledger-compute.ts
+++ b/src/components/medications/dose-history-ledger-compute.ts
@@ -25,6 +25,11 @@ export interface LedgerRow {
   /** The slot's "HH:mm" label, or null for an ad-hoc row. */
   timeOfDay: string | null;
   status: DoseHistoryStatus;
+  /** v1.15.20 — slot served by a deliberate user pin ("zugeordnet"). */
+  pinned?: boolean;
+  /** v1.15.20 — due-context for an ad-hoc take: the nearest slot it could
+   * belong to. `filled: false` unlocks the "Slot zuordnen" kebab action. */
+  nearestSlot?: { at: string; timeOfDay: string; filled: boolean };
   intake: {
     id: string | null;
     scheduledFor: string;
@@ -34,6 +39,24 @@ export interface LedgerRow {
   } | null;
 }
 
+/**
+ * v1.15.20 — human-compact signed offset between an ad-hoc take and the slot
+ * it would have been due at ("+45 min", "-2 h", "+1 h 20 min"). Unit
+ * abbreviations are locale-neutral (min / h); the sign reads "taken after
+ * (+) / before (−) the slot". Sub-minute deltas collapse to "±0 min".
+ */
+export function formatSlotDelta(takenAtIso: string, slotAtIso: string): string {
+  const deltaMs = new Date(takenAtIso).getTime() - new Date(slotAtIso).getTime();
+  const sign = deltaMs < 0 ? "-" : "+";
+  const totalMinutes = Math.round(Math.abs(deltaMs) / 60_000);
+  if (totalMinutes < 60) return `${sign}${totalMinutes} min`;
+  const hours = Math.floor(totalMinutes / 60);
+  const minutes = totalMinutes % 60;
+  return minutes === 0
+    ? `${sign}${hours} h`
+    : `${sign}${hours} h ${minutes} min`;
+}
+
 /** The full `data` envelope the endpoint returns. */
 export interface LedgerPayload {
   from: string;
diff --git a/src/components/medications/wizard/steps/Step8Summary.tsx b/src/components/medications/wizard/steps/Step8Summary.tsx
index b87236fa6..29f9c2230 100644
--- a/src/components/medications/wizard/steps/Step8Summary.tsx
+++ b/src/components/medications/wizard/steps/Step8Summary.tsx
@@ -1,11 +1,14 @@
 "use client";
 
+import { useQuery } from "@tanstack/react-query";
 import { Plus, Trash2 } from "lucide-react";
+import Link from "next/link";
 
 import { Button } from "@/components/ui/button";
 import { Label } from "@/components/ui/label";
 import { Switch } from "@/components/ui/switch";
 import { useTranslations } from "@/lib/i18n/context";
+import { queryKeys } from "@/lib/query-keys";
 
 import {
   type MedicationPayload,
@@ -55,6 +58,28 @@ export function Step8Summary({
   const topSummary = summariseCadence(payload, t);
   const canRemove = payload.schedules.length > 1;
 
+  // Reminders need at least one delivery channel. Fetch the channel
+  // list only while the toggle is on; when the server reports zero
+  // enabled channels, a small hint below the toggle links to
+  // `/settings/notifications` so the user learns BEFORE saving that
+  // the reminder would have nowhere to go. Query errors / loading
+  // render no hint — a false "no channel" warning is worse than none.
+  const { data: notificationChannels } = useQuery({
+    queryKey: queryKeys.notificationsStatus(),
+    queryFn: async () => {
+      const res = await fetch("/api/notifications/status");
+      if (!res.ok) throw new Error("Failed");
+      return ((await res.json()).data as { channels: Array<{ enabled: boolean }> })
+        .channels;
+    },
+    enabled: payload.notificationsEnabled,
+    staleTime: 60_000,
+  });
+  const showNoChannelHint =
+    payload.notificationsEnabled &&
+    Array.isArray(notificationChannels) &&
+    !notificationChannels.some((channel) => channel.enabled);
+
   return (
     <div className="space-y-4" data-slot="wizard-step8">
       <div
@@ -159,6 +184,21 @@ export function Step8Summary({
         />
       </div>
 
+      {showNoChannelHint && (
+        <p
+          className="text-muted-foreground text-xs"
+          data-slot="wizard-no-channel-hint"
+        >
+          {t("medications.wizard.steps.step8.noChannelHint")}{" "}
+          <Link
+            href="/settings/notifications"
+            className="text-primary underline-offset-2 hover:underline"
+          >
+            {t("medications.wizard.steps.step8.noChannelHintLink")}
+          </Link>
+        </p>
+      )}
+
       {submitError && (
         <p
           className="text-destructive text-sm"
diff --git a/src/components/settings/__tests__/settings-shell.test.tsx b/src/components/settings/__tests__/settings-shell.test.tsx
index b55afb91f..dd2f00220 100644
--- a/src/components/settings/__tests__/settings-shell.test.tsx
+++ b/src/components/settings/__tests__/settings-shell.test.tsx
@@ -85,12 +85,9 @@ describe("SETTINGS_SECTION_SLUGS", () => {
 describe("<SettingsShell>", () => {
   it("renders every navigable section link — once for the mobile strip and once for the desktop sidebar", () => {
     const html = renderShell({ active: "account" });
-    // v1.4.33 IW7 — the `about` slug is alive as a route
-    // (`/settings/about` still resolves and `generateStaticParams()`
-    // still emits the page) but it is hidden from the in-shell nav.
-    // The user-card dropdown owns the link now. Iterate the visible
-    // sections list, not the slug list, when asserting on rendered
-    // markup.
+    // Every slug — including `about`, which returned to the shell nav
+    // as the last entry after living dropdown-only since v1.4.33 IW7 —
+    // renders in both layouts.
     const navigableSlugs = SETTINGS_SECTIONS.map((section) => section.slug);
     for (const slug of navigableSlugs) {
       const matches = html.match(new RegExp(`href="/settings/${slug}"`, "g"));
@@ -100,8 +97,6 @@ describe("<SettingsShell>", () => {
       // before media queries resolve.
       expect(matches?.length ?? 0).toBe(2);
     }
-    // The hidden `about` slug must NOT appear in the in-shell nav.
-    expect(html).not.toContain('href="/settings/about"');
   });
 
   it("links use the correct `/settings/<slug>` href — regression guard against typos", () => {
@@ -161,10 +156,9 @@ describe("<SettingsShell>", () => {
     // entry in the sidebar; the link must be present in both locales.
     expect(html).toContain('href="/settings/export"');
     expect(html).toContain("Advanced");
-    // v1.4.33 IW7 — About is no longer in the settings nav; it lives
-    // in the sidebar user-card dropdown. Route `/settings/about` is
-    // still alive for direct links.
-    expect(html).not.toContain('href="/settings/about"');
+    // About is back in the settings nav as the last entry (it also
+    // stays linked from the sidebar user-card dropdown).
+    expect(html).toContain('href="/settings/about"');
     // v1.8.7.1 — Targets and Sources are two separate nav entries again.
     expect(html).toContain('href="/settings/thresholds"');
     expect(html).toContain('href="/settings/sources"');
@@ -197,9 +191,9 @@ describe("<SettingsShell>", () => {
     // API & Tokens is identical in both locales (proper noun + ampersand)
     expect(html).toContain("API &amp; Tokens");
     expect(html).toContain("Erweitert");
-    // v1.4.33 IW7 — "Über" (About) section removed from the in-shell
-    // nav, folded into the sidebar user-card dropdown ("Über HealthLog").
-    expect(html).not.toContain('href="/settings/about"');
+    // "Über diese App" (About) is back as the last in-shell nav entry
+    // (the sidebar user-card dropdown keeps its own link too).
+    expect(html).toContain('href="/settings/about"');
     // v1.8.7.1 — both Targets and Sources nav entries are present.
     expect(html).toContain('href="/settings/sources"');
   });
diff --git a/src/components/settings/integrations-section.tsx b/src/components/settings/integrations-section.tsx
index 91c9dcf03..4d3999ee6 100644
--- a/src/components/settings/integrations-section.tsx
+++ b/src/components/settings/integrations-section.tsx
@@ -1,7 +1,10 @@
 "use client";
 
-import { useState } from "react";
+import { useEffect, useState } from "react";
+import Link from "next/link";
+import { useRouter } from "next/navigation";
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import { toast } from "sonner";
 import {
   Activity,
   AlertCircle,
@@ -170,12 +173,78 @@ function IntegrationErrorMessage({ message }: { message: string }) {
   );
 }
 
+/**
+ * The Withings OAuth callback (`/api/withings/callback`) redirects back
+ * here with `?withings=connected` or `?withings=error&reason=<tag>`.
+ * Map every reason tag the callback emits onto a human-readable i18n
+ * key (what went wrong + what to do next). Unknown tags fall back to
+ * the generic entry so a future callback branch never strands the user
+ * with silent params.
+ */
+const WITHINGS_OAUTH_ERROR_KEYS: Record<string, string> = {
+  csrf1: "settings.withingsOauthError.csrf1",
+  replay: "settings.withingsOauthError.replay",
+  state: "settings.withingsOauthError.state",
+  expired: "settings.withingsOauthError.expired",
+  cross_user: "settings.withingsOauthError.cross_user",
+  nocode: "settings.withingsOauthError.nocode",
+  nocreds: "settings.withingsOauthError.nocreds",
+  token: "settings.withingsOauthError.token",
+};
+
+type WithingsOauthOutcome =
+  | { kind: "connected" }
+  | { kind: "error"; reason: string };
+
 export function IntegrationsSection() {
   const { t } = useTranslations();
   const { isAuthenticated } = useAuth();
+  const router = useRouter();
+  const queryClient = useQueryClient();
 
   const { data: integrationStatus } = useIntegrationStatuses(isAuthenticated);
 
+  // OAuth callback handler — reads `?withings=connected|error&reason=…`
+  // from the URL (lazy initialiser, same shape as the Codex handler in
+  // `ai-section.tsx`) and surfaces the outcome as a toast. Pre-fix the
+  // callback set these params and nothing ever read them: a user came
+  // back from Withings onto a silently unchanged settings page.
+  const [withingsOauthOutcome] = useState<WithingsOauthOutcome | null>(() => {
+    if (typeof window === "undefined") return null;
+    const params = new URLSearchParams(window.location.search);
+    const status = params.get("withings");
+    if (status === "connected") return { kind: "connected" };
+    if (status === "error") {
+      return { kind: "error", reason: params.get("reason") ?? "unknown" };
+    }
+    return null;
+  });
+
+  useEffect(() => {
+    if (!withingsOauthOutcome) return;
+    // Scrub the one-shot params so a reload / bookmark doesn't replay
+    // the toast.
+    const url = new URL(window.location.href);
+    url.searchParams.delete("withings");
+    url.searchParams.delete("reason");
+    router.replace(`${url.pathname}${url.search}`, { scroll: false });
+    if (withingsOauthOutcome.kind === "connected") {
+      toast.success(t("settings.withingsOauthConnected"));
+      queryClient.invalidateQueries({ queryKey: queryKeys.withings() });
+      queryClient.invalidateQueries({
+        queryKey: queryKeys.integrationsStatus(),
+      });
+    } else {
+      const reasonKey =
+        WITHINGS_OAUTH_ERROR_KEYS[withingsOauthOutcome.reason] ??
+        "settings.withingsOauthError.generic";
+      toast.error(t("settings.withingsOauthFailed"), {
+        description: t(reasonKey),
+        duration: 10_000,
+      });
+    }
+  }, [withingsOauthOutcome, router, queryClient, t]);
+
   const withingsViewModel = pickStatus(integrationStatus, "withings");
   const whoopViewModel = pickStatus(integrationStatus, "whoop");
   const fitbitViewModel = pickStatus(integrationStatus, "fitbit");
@@ -195,6 +264,20 @@ export function IntegrationsSection() {
         <p className="text-muted-foreground text-sm">
           {t("settings.sections.integrations.description")}
         </p>
+        {/* Cross-link to Settings → Sources: when two integrations (or
+            an integration + manual entry) report the same metric, the
+            source-priority ladder decides which value counts — a fact
+            newcomers otherwise discover only after a confusing chart. */}
+        <p className="text-muted-foreground text-xs">
+          {t("settings.integrationsSourcesHint")}{" "}
+          <Link
+            href="/settings/sources"
+            className="text-primary underline-offset-2 hover:underline"
+            data-slot="integrations-sources-cross-link"
+          >
+            {t("settings.integrationsSourcesHintLink")}
+          </Link>
+        </p>
       </header>
 
       <WithingsCard viewModel={withingsViewModel} />
diff --git a/src/components/settings/notifications-section.tsx b/src/components/settings/notifications-section.tsx
index 74b16e1ed..c03e123b0 100644
--- a/src/components/settings/notifications-section.tsx
+++ b/src/components/settings/notifications-section.tsx
@@ -7,6 +7,7 @@ import { ChevronRight } from "lucide-react";
 import { useAuth } from "@/hooks/use-auth";
 import { useTranslations } from "@/lib/i18n/context";
 import { queryKeys } from "@/lib/query-keys";
+import { CoachNudgeCard } from "@/components/settings/coach-nudge-card";
 import { MoodReminderCard } from "@/components/settings/mood-reminder-card";
 import { NotificationStatusCard } from "@/components/settings/notification-status-card";
 import { NtfyCard } from "@/components/settings/ntfy-card";
@@ -110,6 +111,10 @@ export function NotificationsSection() {
       <div id="mood-reminder" className="scroll-mt-28">
         <MoodReminderCard isAuthenticated={isAuthenticated} />
       </div>
+      {/* v1.15.20 — proactive Coach nudge opt-out. */}
+      <div id="coach-nudge" className="scroll-mt-28">
+        <CoachNudgeCard isAuthenticated={isAuthenticated} />
+      </div>
     </section>
   );
 }
diff --git a/src/components/settings/settings-shell.tsx b/src/components/settings/settings-shell.tsx
index 22a2c0ebf..249e04aa6 100644
--- a/src/components/settings/settings-shell.tsx
+++ b/src/components/settings/settings-shell.tsx
@@ -20,6 +20,7 @@ import { usePathname } from "next/navigation";
 import {
   Bell,
   Download,
+  Info,
   KeyRound,
   Layers,
   LayoutDashboard,
@@ -66,15 +67,11 @@ interface SettingsSection {
  * in its sidebar + mobile chip-strip. Order matches the in-app
  * navigation order. Don't reorder without updating tests.
  *
- * v1.4.33 IW7 — "About" was folded into the sidebar user-card
- * dropdown (sidebar-nav.tsx -> "Über HealthLog" / "About HealthLog")
- * because its three small cards (identity / links / update check)
- * collectively read once or twice a year and didn't earn a top-level
- * settings slot. The route `/settings/about` is still alive — the
- * slug stays in `SETTINGS_SECTION_SLUGS` so `generateStaticParams()`
- * keeps emitting the page — but it no longer appears in the in-page
- * navigation. Direct links (the user-card dropdown, the public
- * `/about` permalink) continue to resolve to the same component.
+ * "About" sits at the end of the list. v1.4.33 IW7 had folded it into
+ * the sidebar user-card dropdown only, which left `/settings/about` an
+ * orphaned route — reachable by URL but discoverable nowhere in the
+ * settings navigation. It is now both a regular (last) shell entry and
+ * a user-card dropdown item ("Über HealthLog" / "About HealthLog").
  *
  * v1.8.7.1 — `thresholds` (Targets) and `sources` (Sources) are two
  * separate sidebar entries again (merged into a single "Targets &
@@ -125,6 +122,11 @@ export const SETTINGS_SECTIONS: readonly SettingsSection[] = [
     titleKey: "settings.sections.advanced.title",
     icon: Settings2,
   },
+  {
+    slug: "about",
+    titleKey: "settings.sections.about.title",
+    icon: Info,
+  },
 ] as const;
 
 export interface SettingsShellProps {
diff --git a/src/components/settings/sources-section.tsx b/src/components/settings/sources-section.tsx
index 35ece6b40..e3ba990ef 100644
--- a/src/components/settings/sources-section.tsx
+++ b/src/components/settings/sources-section.tsx
@@ -28,6 +28,7 @@
  */
 
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import Link from "next/link";
 import { useMemo, useState } from "react";
 import { toast } from "sonner";
 import {
@@ -307,6 +308,18 @@ export function SourcesSection() {
         <p className="text-muted-foreground text-sm">
           {t("settings.sections.sources.description")}
         </p>
+        {/* Cross-link back to Settings → Integrations — the page that
+            actually adds / removes the sources this ladder ranks. */}
+        <p className="text-muted-foreground text-xs">
+          {t("settings.sections.sources.integrationsHint")}{" "}
+          <Link
+            href="/settings/integrations"
+            className="text-primary underline-offset-2 hover:underline"
+            data-slot="sources-integrations-cross-link"
+          >
+            {t("settings.sections.sources.integrationsHintLink")}
+          </Link>
+        </p>
       </header>
 
       <div className="bg-card border-border space-y-4 rounded-xl border p-6">
diff --git a/src/lib/__tests__/i18n-locale-integrity.test.ts b/src/lib/__tests__/i18n-locale-integrity.test.ts
index bdda594ec..fb460441b 100644
--- a/src/lib/__tests__/i18n-locale-integrity.test.ts
+++ b/src/lib/__tests__/i18n-locale-integrity.test.ts
@@ -362,7 +362,7 @@ describe("i18n locale file integrity", () => {
       ["insights.healthScore.componentBp", "Blutdruck"],
       ["insights.healthScore.componentWeight", "Gewicht"],
       ["insights.healthScore.componentMood", "Stimmung"],
-      ["insights.healthScore.componentCompliance", "Einnahmetreue"],
+      ["insights.healthScore.componentCompliance", "Therapietreue"],
     ];
 
     for (const [key, expectedDe] of EXPECTED) {