1 <?xml version="1.0" encoding="UTF-8"?>
3 <sect1 id="migration.introduction">
4 <title>Introduction</title>
7 When you are working with Zend Framework for a longer time, then you may
8 want to upgrade to new releases as new features are integrated and found
13 We at Zend Framework try to prevent possible problems which you may have
14 when you are in need to do a upgrade. Backwards compatibility is one of our
19 Still, from time to time, it is not possible or even necessary to make
20 changes which have effect on your code, to prevent or solve other problems.
21 To help you to detect possible changes you may need to do when upgrading
22 to a new Zend Framework release, you should carefully read this section.
26 Below you will find informations about all known changes which can have
27 effect on your code, and examples for you about necessary changes you
28 have to do when doing an upgrade.