when brew tap in macOS 26: `depends_on macos:` is deprecated! Use `depends_on macos: :monterey`

[masa0902dev]

Log

> brew tap timac/vpnstatus

…

==> Tapping timac/vpnstatus
Cloning into '/opt/homebrew/Library/Taps/timac/homebrew-vpnstatus'...
Tapped 1 cask and 1 formula (18 files, 27.3KB).
Warning: Calling string comparison format for `depends_on macos:` is deprecated! Use `depends_on macos: :monterey` instead.
Please report this issue to the timac/homebrew-vpnstatus tap (not Homebrew/* repositories), or even better, submit a PR to fix it:
 /opt/homebrew/Library/Taps/timac/homebrew-vpnstatus/Casks/vpnstatus.rb:16

Environment

• macOS: Tahoe 26.5.1
• homebrew: 6.0.6

[tjsoftworks]

This is an issue for me as of today.... 6 Sept ... I believe I caused my problem because I "cleannup out" my Homebrew installs and started over.

% brew tap timac/vpnstatus
brew install timac/vpnstatus/vpnutil
brew install --cask timac/vpnstatus/vpnstatus
==> Tapping timac/vpnstatus
Cloning into '/opt/homebrew/Library/Taps/timac/homebrew-vpnstatus'...
Tapped 1 cask and 1 formula (18 files, 27.3KB).
Warning: Calling string comparison format for depends_on macos: is deprecated! Use depends_on macos: :monterey instead.
Please report this issue to the timac/homebrew-vpnstatus tap (not Homebrew/* repositories), or even better, submit a PR to fix it:
/opt/homebrew/Library/Taps/timac/homebrew-vpnstatus/Casks/vpnstatus.rb:16

==> Trusted formula timac/vpnstatus/vpnutil
==> Would install 1 formula:
vpnutil
==> Fetching downloads for: vpnutil
✔︎ Formula vpnutil (3.1) Verified 33.6KB/ 33.6KB
==> Installing vpnutil from timac/vpnstatus
🍺 /opt/homebrew/Cellar/vpnutil/3.1: 4 files, 175.9KB, built in 1 second
==> Trusted cask timac/vpnstatus/vpnstatus
Warning: Calling string comparison format for depends_on macos: is deprecated! Use depends_on macos: :monterey instead.
Please report this issue to the timac/homebrew-vpnstatus tap (not Homebrew/* repositories), or even better, submit a PR to fix it:
/opt/homebrew/Library/Taps/timac/homebrew-vpnstatus/Casks/vpnstatus.rb:16

==> Would install 1 cask:
timac/vpnstatus/vpnstatus
==> Fetching downloads for: timac/vpnstatus/vpnstatus
✔︎ Cask vpnstatus (3.1) Downloaded 542.5KB/542.5KB
==> Installing Cask vpnstatus
Warning: Calling string comparison format for depends_on macos: is deprecated! Use depends_on macos: :monterey instead.
Please report this issue to the timac/homebrew-vpnstatus tap (not Homebrew/* repositories), or even better, submit a PR to fix it:
/opt/homebrew/Library/Taps/timac/homebrew-vpnstatus/Casks/vpnstatus.rb:16

==> Purging files for version 3.1 of Cask vpnstatus
Error: timac/vpnstatus/vpnstatus: It seems there is already an App at '/Applications/VPNStatus.app'.

Environment
macOS: Tahoe 26.6.2
homebrew: 6.0.22

[tjsoftworks]

Note for others.

Environment
macOS: Tahoe 26.6.2

I am able to use this command to do what I need for open, closing and status of VPN

VPN="MY VPN NAME"
networksetup -connectpppoeservice "$VPN"
connected
networksetup -disconnectpppoeservice "$VPN"
networksetup -showpppoestatus "$VPN"
disconnected