Compatibility issue between parse.y and Prism on the string returned by Hash#inspect

[lidimayra]

I noted different results from Hash#inspect when switching to Ruby 3.4 (example here).

Ruby 3.3

> {foo: "bar"}.inspect
=> "{:foo=>\"bar\"}"

Ruby 3.4

> {foo: "bar"}.inspect
=> "{foo: \"bar\"}"

[kddnewton]

That has nothing to do with Prism, it's an intentional change by the core team. Please see the Ruby 3.4 release notes https://www.ruby-lang.org/en/news/2024/12/25/ruby-3-4-0-released/.