In month note title patterns, replace {isoMonth} with e.g. "2025-03" for March 2025.

docs/User Guide/User Guide/Advanced Usage/Advanced Showcases/Day Notes.md

@@ -43,6 +43,7 @@ It's possible to customize the title of generated date notes by defining a `#dat
 
 It is also possible to customize the title of generated month notes through the `#monthPattern` attribute, much like `#datePattern`. The options are:
 
+*   `{isoDate}` results in an ISO 8061 formatted month (e.g. "2025-03" for March 2025)
 *   `{monthNumberPadded}` results in a number like `09` for September, and `11` for November
 *   `{month}` results in the full month name (e.g. `September` or `October`)
 *   `{shortMonth3}` is replaced with the first 3 letters of the month, e.g. Jan, Feb, etc.
@@ -56,4 +57,4 @@ Trilium has some special support for day notes in the form of [backend Script AP
 
 Day (and year, month) notes are created with a label - e.g. `#dateNote="2018-08-16"` this can then be used by other scripts to add new notes to day note etc.
 
-Journal also has relation `child:child:child:template=Day template` (see \[\[attribute inheritance\]\]) which effectively adds \[\[template\]\] to day notes (grand-grand-grand children of Journal).
+Journal also has relation `child:child:child:template=Day template` (see \[\[attribute inheritance\]\]) which effectively adds \[\[template\]\] to day notes (grand-grand-grand children of Journal).

src/public/app/doc_notes/en/User Guide/User Guide/Advanced Usage/Advanced Showcases/Day Notes.html

@@ -76,6 +76,8 @@
           the <code>#monthPattern</code> attribute, much like <code>#datePattern</code>.
           The options are:</p>
         <ul>
+          <li><code>{isoMonth}</code> results in an ISO 8061 formatted month (e.g.
+            "2025-03" for March 2025)</li>
           <li><code>{monthNumberPadded}</code> results in a number like <code>09</code> for
             September, and <code>11</code> for November</li>
           <li><code>{month}</code> results in the full month name (e.g. <code>September</code> or <code>October</code>)</li>
@@ -98,4 +100,4 @@
     </div>
   </body>
 
-</html>
+</html>

src/services/date_notes.ts

@@ -111,6 +111,7 @@ function getMonthNoteTitle(rootNote: BNote, monthNumber: string, dateObj: Date)
     return pattern
         .replace(/{shortMonth3}/g, monthName.slice(0, 3))
         .replace(/{shortMonth4}/g, monthName.slice(0, 4))
+        .replace(/{isoMonth}/g, dateUtils.utcDateStr(dateObj).slice(0, 7))
         .replace(/{monthNumberPadded}/g, monthNumber)
         .replace(/{month}/g, monthName);
 }