Rob Allen has posted an entry to his blog today about some of the fixes/additions he's been making to the Zend_Config module of the Zend Framework:

I've just finished going through the open Zend_Config issues and fixing them all. Nothing major, but a couple of nice fixes and one new function.

Bugs fixed included numbers ZF-2209, ZF-2162 and ZF-2021. The new feature he talks about is the addition of a new function called setReadOnly that lets you lock an object from being changed after it's been set.