Unexpected method 'discontinued' called during caveats on Cask xmind8

[marcomaes]

Output of brew config

➜  ~ brew config
HOMEBREW_VERSION: 4.5.1
ORIGIN: https://github.com/Homebrew/brew
HEAD: 541d8879c4ba9b868aa8d6e1b54a5813d7621e39
Last commit: 3 days ago
Branch: stable
Core tap JSON: 09 May 11:51 UTC
Core cask tap JSON: 09 May 11:51 UTC
HOMEBREW_PREFIX: /opt/homebrew
HOMEBREW_CASK_OPTS: []
HOMEBREW_MAKE_JOBS: 10
Homebrew Ruby: 3.4.3 => /opt/homebrew/Library/Homebrew/vendor/portable-ruby/3.4.3/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: 15.4.1-arm64
CLT: 16.3.0.0.1.1742442376
Xcode: 16.3
Rosetta 2: false

Output of brew doctor

➜  ~ brew doctor
Error: Unexpected method 'discontinued' called during caveats on Cask xmind8.
Follow the instructions here:
  https://github.com/Homebrew/homebrew-cask#reporting-bugs
Error: Unexpected method 'discontinued' called during caveats on Cask xmind8.
Follow the instructions here:
  https://github.com/Homebrew/homebrew-cask#reporting-bugs
Please note that these warnings are just used to help the Homebrew maintainers
with debugging if you file an issue. If everything you use Homebrew for is
working fine: please don't worry or file an issue; just ignore this. Thanks!

Warning: Some installed formulae are deprecated or disabled.
You should find replacements for the following formulae:
  icu4c@76

Warning: The following formulae have the same name as core formulae:
  bufbuild/buf/buf
  facebook/fb/watchman
  lyft/formulae/swiftlint
  lyft/formulae/xcodegen
Their taps are in use, so you must use these full names throughout Homebrew.

Description of issue

On upgrading my Homebrew brew upgrade I keep getting the error:
Unexpected method 'discontinued' called during caveats on Cask xmind8
I understand that it's discontinued, but this seems more like something is not correct in their cask. What is the best way to get rid of this error?

Relevant casks

xmind8

[p-linnane]

discontinued was something we used in casks prior to implementing deprecate! and disable! like we have for formulae. Whoever is maintaining the tap that holds that cask just needs to remove discontinued.

[daeho-ro]

xmind8 was in the homebrew/cask-versions tap, and the tap is not used anymore. During the migration, xmind8 is deprecated and not moved I think. Can you run this command and show the outputs? brew tap

[marcomaes]

➜ ~ brew tap
bufbuild/buf
facebook/fb
lyft/formulae
powershell/tap
wix/brew

[daeho-ro]

If you don't need xmind8, remove it and then you can update without error I guess.

rm -rf $(brew --caskroom)/xmind8

[rschmitt]

I'm getting this error from the zulu7 cask.