A development package needs an explicit dependency, i.e. development package xxx-dev version A must depend on xxx1 version A. Right now, there is no explicit version dependency for the dev to the binary package, so if one installs an older dev package, one will get the latest binary package, which more than likely will not match.
A development package needs an explicit dependency, i.e. development package xxx-dev version A must depend on xxx1 version A. Right now, there is no explicit version dependency for the dev to the binary package, so if one installs an older dev package, one will get the latest binary package, which more than likely will not match.
This is for all packages, in all repos.