Emacs/emacs/Package-Statuses

A package can have one of the following statuses:

‘available’: The package is not installed, but can be downloaded and installed from the package archive.
‘avail-obso’: The package is available for installation, but a newer version is also available. Packages with this status are hidden by default.
‘built-in’: The package is included in Emacs by default. It cannot be deleted through the package menu, and is not considered for upgrading.
‘dependency’: The package was installed automatically to satisfy a dependency of another package.
‘disabled’: The package has been disabled using the package-load-list variable.
‘external’: The package is not built-in and not from the directory specified by package-user-dir (see Package Files). External packages are treated much like ‘built-in’ packages and cannot be deleted.
‘held’: The package is held, See Package Installation.
‘incompat’: The package cannot be installed for some reason, for example because it depends on uninstallable packages.
‘installed’: The package is installed.
‘new’: Equivalent to ‘available’, except that the package became newly available on the package archive after your last invocation of M-x list-packages.
‘obsolete’: The package is an outdated installed version; in addition to this version of the package, a newer version is also installed.