Zend announced today the release of Zend Core for Oracle 2.0.1. This release contains Core 2.0 and 2.0.1 functionality and improvements.
Zend Core for Oracle is a Zend certified and supported version of the open source PHP. It uniquely delivers a seamless out-of-the box experience by bundling all the necessary drivers and third party libraries to work with Oracle database.
Zend Core is the leading production quality PHP 5 stack that provides the certified, enhanced capabilities with support and PHP maintenance that serious professionals need for PHP development and production.
Please check the site for the most updated information about the product and the new Core support and PHP maintenance policy:
http://www.zend.com/products/zend_core/support
http://www.zend.com/products/zend_core/zend_core_for_oracle

Comments
With the Zend Core standard package there is no way to get PEAR packages installed (on Windows installations).
You can use zend framework, it has all packages same as PEAR, zend code comes with the zend framework.
that's okay, but what if I want to use Zend Core ( and Zend platform ) to debug some pear-related projects ( in my case there are some symfony based projects)?