PHP 5 - is it production ready?

I see that PHP 5 stable release is out but I'm very reluctant to make the upgrade on my servers as I'm afraid it will break all my clients scripts and cause huge issues.

How backwards compatible is PHP 5 with PHP 4.3?
Will upgrading my servers cause lots of trouble, I'm expecting it will.

I'm running RHE and Cpanel boxes. Any suggestions would be great.

Thanks

Steve

 

 

 

 

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