# Migrating from Previous Versions

This chapter documents primarily backwards compatibility breaks made in `Zend_Filter`, and should serve to aid in migration from previous versions.

## Migrating from versions prior to 1.9

Prior to the 1.9 release, `Zend_Filter` allowed the usage of the static `get()` method. As with release 1.9 this method has been renamed to `filterStatic()` to be more descriptive. The old `get()` method is marked as deprecated.