# Upgrading from 0.9.0 to 1.0.0

The following should help most casual users of the project update their applications:

- The top level package name has changed. Simply find "net.sf.acegisecurity" and replace with "org.acegisecurity".
- DaoAuthenticationProvider has a property, authenticationDao. This property should now be renamed to userDetailsService.
- In JSPs, each "authz" taglib prefix must be changed from uri="http://acegisecurity.sf.net/authz" to uri="http://acegisecurity.org/authz".
- net.sf.acegisecurity.providers.dao.AuthenticationDao is now org.acegisecurity.userdetails.UserDetailsService. The interface signature has not changed. Similarly, User and UserDetails have moved into the latter's package as well. If you've implemented your own AuthenticationDao, you'll need to change the class it's implementing and quite likely the import packages for User and UserDetails. In addition, if using JdbcDaoImpl or InMemoryDaoImpl please note they have moved to this new package.
- Acegi Security is now localised. In net.sf.acegisecurity you will find a messages.properties. It is suggested to register this in your application context, perhaps using ReloadableResourceBundleMessageSource. If you do not do this, the default messages included in the source code will be used so this change is not critical. The Spring LocaleContextHolder class is used to determine the locale of messages included in exceptions. At present only the default messages.properties is included (which is in English). If you localise this file to another language, please consider attaching it to a new JIRA task so that we can include it in future Acegi Security releases.