Rails 8 will target Ruby 3.3+ only for new apps

Author: dhh

railties/lib/rails/generators/rails/app/templates/Gemfile.tt

@@ -56,11 +56,6 @@ group :development do
   # gem "rack-mini-profiler"
 
 <%- end -%>
-<%- if RUBY_VERSION < "3.2" -%>
-
-  # Highlight the fine-grained location where an error occurred [https://github.com/ruby/error_highlight]
-  gem "error_highlight", ">= 0.4.0", platforms: [:ruby]
-<%- end -%>
 end
 
 <%- if depends_on_system_test? -%>