Derek Jones
President/CTO, EllisLab, Inc.

ExpressionEngine 2.0 Public Beta Trial and Zend Optimizer

A number of people are reporting problems running the free 30-day trial version of ExpressionEngine 2.0 Public Beta.  Some of the issues are of course with minor bugs in the beta itself, many of which were fixed in the 20091204 build.

But the show-stoppers are mostly related to Zend Optimizer incompatibility with certain versions of PHP, specifically when running PHP 5.2.10 or greater in conjunction with Zend Optimizer 3.3.3 or older.  Unfortunately, this incompatibility exists in the current default packages of many popular methods of running a web server on your local machine, such as MAMP and XAMPP.

If you find yourself in this situation, there are a number of free remedies available that you can find in this sticky topic in our forums.

And of course, the full versions of ExpressionEngine 2.0 Public Beta do not suffer this limitation since they do not require Zend Optimizer.  They also include the current version of ExpressionEngine 1.x, so you can use 1.x until you are ready to upgrade.