should we change default names in a patch release?

This will break all URL generation that uses the existing names. So it might indeed be dangerous in a patch release

also, from my experience, dereferencing virtual route names is pure pain :D

This will break all URL generation that uses the existing names. So it might indeed be dangerous in a patch release

Only when an action method doesn't end with Action nor _action, but still ends with action, in a case-sensitive way.

I'm fine doing this on 5.4...

Now targetting 5.4

@Tobion comments addressed, thanks for the review!

Thank you @nicolas-grekas.