|Original author(s)||EllisLab, Inc.|
|Developer(s)||British Columbia Institute of Technology|
|Initial release||February 28, 2006|
|Stable release||2.2.0 / June 5, 2014|
|Type||Web application framework|
CodeIgniter is an open source rapid development web application framework, for use in building dynamic web sites with PHP. The first public version of CodeIgniter was released on February 28, 2006, and the latest stable version 2.2.0 was released June 5, 2014.
CodeIgniter is loosely based on the popular Model-View-Controller development pattern. While controller classes are a necessary part of development under CodeIgniter, models and views are optional.
CodeIgniter is most often noted for its speed when compared to other PHP frameworks. In a critical take on PHP frameworks in general, PHP creator Rasmus Lerdorf spoke at frOSCon in August 2008, noting that he liked CodeIgniter "because it is faster, lighter and the least like a framework."
CodeIgniter's source code is maintained at GitHub, and as of the preview version 3.0-dev, is certified open source software licensed with the MIT License. Versions of CodeIgniter prior to 3.0 are licensed under a proprietary Apache/BSD-style open source license.
The decision to switch to an OSL license sparked some community controversy, especially about the GPL incompatibility of the new license, to which EllisLab has responded with a series of articles entitled Software License Awareness Week.
On July 9, 2013, EllisLab announced that it is seeking a new owner for its CodeIgniter, stating lack of involvement as a reason. On October 6, 2014, EllisLab announced that CodeIgniter will continue its development under the stewardship of the British Columbia Institute of Technology.
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