Folder templates (and rename / export names) can now give month folders by
name: {date:%Y}/{date:%B} → 2026/January, {date:%b} → Jan. The names are
English in every interface language so a library's folders don't change
with the language; a month that doesn't parse gives nothing (a folder
level becomes "unknown").
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>