Contributor Guide (ZF v1)
Zend Framework version 1 is currently supported in maintenance mode where bug fixes are accepted until End Of Life is announced. Version 1.12 is the last version in the 1.x series. If it is a new feature you wish to contribute, the best place to take this is ZF2.
For ZF1, we are accepting bug fixes to existing components. Security fixes will be provided on the 1.12 branch until EOL. If you have a fix for a ZF1 issue, please carefully read this document. It explains the procedures as it relates to the ZF1 process, including the requirement to sign and send in the Contributor License Agreement (CLA).
Note: while ZF2 is CLA free, ZF1 and its contribution process still require this. The license has not changed, and like ZF2 is the New BSD license.