0.1.3.0 2018-06-21

* Use raw POSIX io to write to proc files (Baojun Wang).
* Support denying setgroups to processes in user namespaces, needed to support unprivileged creation of user namespaces (Baojun Wang).

0.1.2.0 2014-10-30

* Provide Read instances for UserMapping & GroupMapping.

0.1.1.1 2014-10-30

* Improve documentation.

0.1.1.0 2014-10-29

* Export data constructors for UserMapping & GroupMapping.