Dojo 1.0 has a few public API changes from Dojo 0.9 which are documented in this guide. After the 1.0 release, Dojo will return to a policy of a one release deprecation cycle for any public API changes.

This Porting Guide is indispensable to anyone who is familiar with writing to the older Dojo 0.4 APIs or wishes to port an application from an older Dojo release. Dojo 0.9 is not backward compatible with all previous Dojo releases, so this guide can save you some serious headaches. This guide outlines:

• Public API changes between 0.4.x and 0.9
• Alternative ways to achieve goals with 0.9 if function has been replaced