Error: undefined method `tainted?` when using Ruby v3.2.0

[nshki]

Before submitting an issue, please be sure to

• [x] Read the contributing instructions
• [x] Update to the latest Gem version (run bundle update github-pages)

This issue affects

• [ ] The site generated by GitHub Pages
• [x] Building sites locally

The GitHub Pages Gem is intended to help users replicate the GitHub Pages build environment locally. If your issue affects both the hosted version and the version previewed locally, you may be better suited reporting seeking support in other forums.

What did you do (e.g., steps to reproduce)

1. Install Ruby v3.2.0 via rbenv with rbenv install 3.2.0.
2. Set global Ruby version to v3.2.0 with rbenv global 3.2.0.
3. bundle install in the Jekyll repo.
4. Try starting a dev server with bundle exec jekyll serve.

What did you expect to happen?

The Jekyll project to run on localhost:4000.

What happened instead?

The following error was thrown in the terminal:

  Liquid Exception: undefined method `tainted?' for "2013-12-27T00:00:00-08:00":String in /_layouts/post.html                                                                          
jekyll 3.9.2 | Error:  undefined method `tainted?' for "2013-12-27T00:00:00-08:00":String                                                                                              
/Users/nshki/.rbenv/versions/3.2.0/lib/ruby/gems/3.2.0/gems/liquid-4.0.3/lib/liquid/variable.rb:124:in `taint_check': undefined method `tainted?' for "2013-12-27T00:00:00-08:00":String (NoMethodError)

[parkr]

Liquid 4 is not compatible with Ruby 3.2. https://github.com/Shopify/liquid/issues/1625#issuecomment-1254061820

[parkr]

Liquid is updated. Upgrade to v4.0.4.