How stable or unstable is symfony 2.0? [closed]

Question

Well, I know it's a preview, and I know it says that it's not yet ready for production, and yet I dare ask the question.

I need to start building a pretty big application, which is planned to go live at around sep-oct 2010.

Lets say I will not release the application to production until the stable version of symfony 2.0 will be released - is it a good idea (well, I'll settle for a viable idea) for me to start building the application using the 2.0 version ? How big is the chance I will need to rewrite/replace code I've written due to core changes in the framework ?

Thanks.

Edit: the other option right now, is to use symfony 1.4.
I have thought and tried Zend Framework, but I refuse to re-invent each and every module, which will cost me a lot of programming hours (if not days/weeks).

Answer 1

From Fabien's presentation of Symfony 2 at symfony live: use symfony 1.4 for your next project.

From Symfony 2 github page: things WILL change.

Now consider the following:

• symfony 1.4 will be supported until late 2012, that's 2 years after your project's release
• Symfony 2 does not have code generation, forms, unit tests, etc so everything that you'll do to cover up these fields, you'll have to redo when the official ways are coming (that answers your second question)

so as everyone already said here, go for 1.4