For Rails 4.0 +

0.3.2

Enable destroy-ing a key with falsy data; #32
Require Rails 4.0.0+;

0.3.1

false value can't got back bug has fixed.

0.3.0

Fix to work with Rails 4.0.0

For Rails 3.x

0.2.4

Setting.save_default method to direct write default value in database.
fix mass-update bug.

0.2.3

Fix bug with when key has cached a nil value, and then set a default value for that key, the default value can't right return.

0.2.2

Add auto cache feature to all key visit.