Since 3.3 the rubygems/indexer.rb lib is missing.

[johansmitsnl]

In all previous versions the file is present. Is this an error?

[yosifkit]

We don't do anything to remove this particular dependency. Our installation process is fairly straightforward; as far as I know, any rubygems dependency changes would have been changes in Ruby itself (or maybe transitive dependencies of those included gems).

Perhaps something caused by the changes here? https://github.com/ruby/ruby/blob/ruby_3_2/gems/bundled_gems vs https://github.com/ruby/ruby/blob/ruby_3_3/gems/bundled_gems