The latest version of CodeIgniter is version 4 and is actively supported. CodeIgniter 3 is still supported, but it mainly receives security fixes.
If you are planning to build a new web application using CodeIgniter, you should use CodeIgniter 4.
4.6.3
Latest release
Released 3 months ago (August 02, 2025)
| Software |
 CodeIgniter |
| Introduction | CodeIgniter is an open source web framework for building web applications, built on PHP. It provides many useful features to help you build a web application faster such as Form validation, Templating, many helper functions, Database query builder, etc. |
| Written in | PHP |
| Operating system | Cross-platform |
| Type | Web Framework |
| Repository | https://github.com/codeigniter4/CodeIgniter4 |
| Website | https://codeigniter.com |
| License | MIT license |
All Releases
| Version | Supported PHP versions | First official release | Latest patch release | Support status |
|---|---|---|---|---|
| 4 | PHP 7.4+ | 4.0.0 5 years ago February 23, 2020 | 4.6.3 3 months ago August 02, 2025 | Yes |
| 3 | PHP 5.6+ | 3.0.0 10 years ago April 24, 2015 | 3.1.13 3 years ago March 03, 2022 | Yes |
| 2 | PHP 5.1.6+ | 2.0.3 14 years ago August 20, 2011 | 2.2.6 10 years ago October 31, 2015 | No |
Recent Releases
| Version | Release date |
|---|---|
| 4.6.3 |
3 months ago August 02, 2025 |
| 4.6.2 |
3 months ago July 26, 2025 |
| 4.6.1 |
6 months ago May 02, 2025 |
| 4.6.0 |
9 months ago January 19, 2025 |
| 4.5.8 |
9 months ago January 19, 2025 |