If using a screenreader like VoiceOver for the Mac and you use Reline.readmultiline , for example in a loop , say in a REPL, and you output a string without terminating the line with a newline, funny things happen to your screenreader. Like, it no longer outputs the characters you type.
This can be easily demonstrated using Docker and 2 images: ruby:2.6 and ruby:3.2 In ruby:2.6 and before, the same program 'irb', Ruby's own REPL does not experience this problem. But in Ruby 2.7 and above, irb was changed to use the new Reline module instead of the venerable Readline, a wrapper around the venerable GNU readline library.