Upgrading Instructions for Yii Framework v1.1
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!!!IMPORTANT!!!

The following upgrading instructions are cumulative. That is,
if you want to upgrade from version A to version C and there is
version B between A and C, you need to following the instructions
for both A and B.

Upgrading from v1.0.0
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- An $on parameter is added to both CModel::beforeValidate() and afterValidate().
  If you override these methods in your child classes (form models, AR classes),
  make sure you change the method signature accordingly.