Just

> Same here, I'm having a hard time understanding [this part of the documentation](https://github.com/devise-security/devise-security#e-mail-validation). > I'm trying to use the Ruby constant validation (without installing a gem) so I did:...

你是最近新建的Android工程吗？

> > [#198 (comment)](https://github.com/docker-library/ruby/pull/198#issuecomment-431638495) > > We're still hesitant to add this to the image without a recommendation by Ruby upstream. In the meantime, you can trivially add support in...

any solution now?