Taken from the official FAQs of Zend Framework 2:
I’m starting a new project – which version of Zend Framework should I use?
Start using Zend Framework 2! It's already stable.
It is always a good idea to learn(and use) newer version.
Question
Hello I am new to the Zend & Stacjoverflow also.
I have just basic concepts of Zend in mind only. So please suggest me which version is better for the development zend2 (or) Zend 1.+.
Currently i am using zend 1.12.3 only
Solution
Taken from the official FAQs of Zend Framework 2:
I’m starting a new project – which version of Zend Framework should I use?
Start using Zend Framework 2! It's already stable.
It is always a good idea to learn(and use) newer version.