Finds all gems that satisfy dep
Perform hostname verification following RFC 6125.
This method MUST be called after calling connect to ensure that the hostname of a remote peer has been verified.
Oldest version we support downgrading to. This is the version that originally ships with the first patch version of each ruby, because we never test each ruby against older rubygems, so we can’t really guarantee it works. Version list can be checked here: stdgems.org/rubygems
The required_ruby_version constraint for this specification
A fallback is included because when generated, some marshalled specs have it set to nil.