Dovecot: upgrade to 2.4.1?

[rxg]

Output of brew config

==> dovecot: stable 2.4.0 (bottled)
IMAP/POP3 server
https://dovecot.org/
Installed
/opt/homebrew/Cellar/dovecot/2.4.0 (938 files, 27MB) *
  Poured from bottle using the formulae.brew.sh API on 2025-04-27 at 18:34:57
From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/d/dovecot.rb
License: BSD-3-Clause AND LGPL-2.1-or-later AND MIT AND Unicode-DFS-2016 AND LicenseRef-Homebrew-public-domain
==> Dependencies
Build: pkgconf ✘
Required: openldap ✔, openssl@3 ✔
==> Caveats
For Dovecot to work, you may need to create a dovecot user
and group depending on your configuration file options.

To start dovecot now and restart at startup:
  sudo brew services start dovecot
Or, if you don't want/need a background service you can just run:
  /opt/homebrew/opt/dovecot/sbin/dovecot -F
==> Analytics
install: 58 (30 days), 200 (90 days), 974 (365 days)
install-on-request: 58 (30 days), 199 (90 days), 970 (365 days)
build-error: 0 (30 days)
ronaldgarcia@CPSC-M-RXG01 lecture-notes % brew config
HOMEBREW_VERSION: 4.5.7
ORIGIN: https://github.com/Homebrew/brew
HEAD: 6301c2d31f8dc07d2d16ddaa33711cf5a41d4e17
Last commit: 10 days ago
Branch: stable
Core tap JSON: 23 Jun 05:00 UTC
Core cask tap JSON: 23 Jun 05:00 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_DISPLAY: /private/tmp/com.apple.launchd.hnUYzw3Y4i/org.xquartz:0
HOMEBREW_EDITOR: vi
HOMEBREW_MAKE_JOBS: 10
Homebrew Ruby: 3.4.4 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.4.4/bin/ruby
CPU: deca-core 64-bit arm_firestorm_icestorm
Clang: 17.0.0 build 1700
Git: 2.39.5 => /Applications/Xcode.app/Contents/Developer/usr/bin/git
Curl: 8.7.1 => /usr/bin/curl
macOS: 15.5-arm64
CLT: 16.4.0.0.1.1747106510
Xcode: 16.4
Rosetta 2: false

Output of brew doctor

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Warning: Some installed kegs have no formulae!
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Description of issue

Apologies if this is the wrong place to post this request, but I failed to find an alternative that seemed suited.
Dovecot's homepage only lists 2.4.0 under NEWS, but under DOWNLOADS 2.4.1 is available. I wonder if/when dovecot might be updated to the latest version (I'm guessing that the lack of a news release might be the reason it has not yet been updated?)

Thanks!

[botantony]

Homebrew already has a mechanism to automatically detect the latest version called "livecheck" . Usually it works automatically (f.e. if a project is hosted on GitHub Homebrew already knows we just need to find the latest tag/release) but it may be a bit tricky to parse correct version on third-party website. The current version of the formula defines the following regex for version:

livecheck do
  url "https://www.dovecot.org/download/"
  regex(/href=.*?dovecot[._-]v?(\d+(?:\.\d+)+)\.t/i)
end

It cannot match https://dovecot.org/releases/2.4/dovecot-2.4.1-4.tar.gz (because of this -4 part) and therefore thinks 2.3.16 is the latest version (because there's no 2.4.0 link on the page).

I created a PR that should fix the regex and update the package: #227937