# Revision history for hackage-db
## 2.1.3
* `hackageTarball` / `cabalStateDir` now support overriding the cabal directory
location by setting the `CABAL_DIR` environment variable. This is useful if
`hackage-db` doesn't detect the correct location on its own:
- A matching cabal state directory may exist, but should not be used for some
reason.
- A non-standard cabal state directory may be used, but `hackage-db` can't
find it (as it doesn't check the `cabal-install` configuration file).
* `hackageTarball` now supports all state dir location(s) (newly) supported by
`cabal-install`. If `CABAL_DIR` is not set, it will look in the following
locations in that order:
1. `$HOME/.cabal`, the classic location, will be preferred if it exists.
2. `$XDG_CACHE_HOME/cabal` (usually `$HOME/.cache/cabal`) is used otherwise.
`cabal-install` 3.10.1.0 and newer will default to this location for
fresh installations.
## 2.1.2
Fix a bug which lead to `parsePackageData` always failing if the package had
a `preferred-versions` file in the hackage tarball.