diff --git a/AGENTS.md b/AGENTS.md
index 7b33ff3..e8ebe7e 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -106,8 +106,8 @@ Scale rigor to the change: a one-line fix needs a quick reviewer + tester pass;
 
 # This is NOT the Next.js you know
 
-This version has breaking changes — APIs, conventions, and file structure may all differ from your training data. Read the relevant guide in `node_modules/next/dist/docs/` before writing any code. Heed deprecation notices.
+This version has breaking changes — APIs, conventions, and file structure may all differ from your training data. Read the relevant guide in `node_modules/next/dist/docs/` (resolved from this file's directory; in monorepos the `next` package may not be visible from the repo root) before writing any code. Heed deprecation notices.
 
-**Keep this block, including in commits.** It is part of the project's agent setup, maintained by `next dev` for every agent that works here. If it appears as an uncommitted change, that is intentional — commit it as-is. Do not remove it to clean up a diff; it will be regenerated.
+This block is written and re-added by `next dev` — verify at `node_modules/next/dist/server/lib/generate-agent-files.js`. Removing it from a diff only re-creates the uncommitted change; committing it with your work keeps the tree clean.
 
 <!-- END:nextjs-agent-rules -->
diff --git a/components/datetime-picker.tsx b/components/datetime-picker.tsx
index 6eb7f6c..59228ca 100644
--- a/components/datetime-picker.tsx
+++ b/components/datetime-picker.tsx
@@ -155,7 +155,7 @@ export function DateTimePicker({
           onSelect={updateDate}
           disabled={disabledDays}
           locale={calendarLocale}
-          captionLayout="dropdown"
+          captionLayout="dropdown-months"
         />
         <div className="flex items-center gap-2 border-t p-2.5">
           <div className="flex min-w-0 flex-1 items-center gap-2">
diff --git a/tests/lib/datetime-picker.test.js b/tests/lib/datetime-picker.test.js
index e8bf8f5..763da49 100644
--- a/tests/lib/datetime-picker.test.js
+++ b/tests/lib/datetime-picker.test.js
@@ -1,6 +1,9 @@
 import test from "node:test"
 import assert from "node:assert/strict"
 import fs from "node:fs"
+import React from "react"
+import { renderToStaticMarkup } from "react-dom/server"
+import { DayPicker } from "react-day-picker"
 
 import {
   applyDateTimeBounds,
@@ -93,3 +96,22 @@ test("DateTimePicker keeps the calendar date selected when clicked again", () =>
   assert.equal(source.includes('mode="single"'), true)
   assert.equal(source.includes("required"), true)
 })
+
+test("DateTimePicker does not cap navigation at the current year", () => {
+  const source = fs.readFileSync("components/datetime-picker.tsx", "utf8")
+  const captionLayout = source.match(/captionLayout="([^"]+)"/)?.[1]
+
+  assert.equal(captionLayout, "dropdown-months")
+
+  const markup = renderToStaticMarkup(
+    React.createElement(DayPicker, {
+      captionLayout,
+      month: new Date(2026, 11, 1),
+      today: new Date(2026, 7, 9),
+    }),
+  )
+  const nextMonthButton = markup.match(/<button[^>]+aria-label="Go to the Next Month"[^>]*>/)?.[0]
+
+  assert.ok(nextMonthButton)
+  assert.doesNotMatch(nextMonthButton, /aria-disabled="true"/)
+})