  * has_key?(...) now takes MongoDB style queries for embedded docs ("address.city")
  * has_key?(...) now takes MongoDB style queries for embedded docs ("address.city")

  * Document hash is now an MHash which is a subclass of HashWithIndifferentAccess. All keys are now strings.

  * Added value_for_key(...) method to quickly get the value of embedded docs

mongomatic/mongomatic,jsmestad/mongomatic