Verified on precise:
... Setting up distro-info-data (0.8ubuntu0.6) ... Setting up distro-info (0.8.2) ... $ distro-info --devel ubuntu-distro-info: Distribution data outdated.
# enable proposed and upgrade distro-info-data (0.8ubuntu0.7) $ distro-info --devel vivid $ distro-info --devel --full Ubuntu 15.04 "Vivid Vervet"
The rest of the options, --lts, --supported, --unsupported, --stable, --all, look good as well.
Verified on precise:
... Setting up distro-info-data (0.8ubuntu0.6) ...
Setting up distro-info (0.8.2) ...
$ distro-info --devel
ubuntu-distro-info: Distribution data outdated.
# enable proposed and upgrade distro-info-data (0.8ubuntu0.7)
$ distro-info --devel
vivid
$ distro-info --devel --full
Ubuntu 15.04 "Vivid Vervet"
The rest of the options, --lts, --supported, --unsupported, --stable, --all, look good as well.