0.0206
  change: options delete
  change: the way to get result is changed
  add   : add some test
0.0205
  change : Build.PL requires => { Object::Simple => 2.0018 }
  add : can pass option to constraint function
  add : results attribute
  add : can inheritable customize
  add : error_stock attribute
  add : correlation check

0.0204
  catch up Object::Simple update 2.0003
  change: errors methods dereference
  
0.0203
  rename add_validator to add_constraint
  rename validators to constraints
  rename $VALIDATORS to $CONSTRINTS
  catch up Object::Simple bag fix
  
0.0202
  bag fix: $validator is spliced
0.0201
  first release
0.01_01
  first develope release