CodeIgniter-4.0.0-rc.1 launches today
This is a pre-release of 4.0.0. It is not suitable for production! (but it is pretty darn close)
Highlights:
Looking to upgrade from CI3 to CI4?
Generated API docs accessible at https://codeigniter4.github.io/api/
This is our first release candidate! A number of things have been fixed, and it is looking pretty good
We need to know what remains in the way of hiccups!
Thank you to the community for stepping up to help make this the best PHP framework!
Do NOT post support questions or feature requests in response to this thread - those will be deleted. Instead, use the appropriate CodeIgniter 4 subforum. We are trying to make the best of the limited resources that we have!
Thank you, and ENJOY!
This is a pre-release of 4.0.0. It is not suitable for production! (but it is pretty darn close)
Highlights:
- Migrations refactored and streamlined for more wholistic functionality (BC)
- CI3 Email ported to CI4
- Encryption (basic) added
- RESTful controllers added to shorten dev time for RESTful APIs
- New messages for Migrations and RESTful
Looking to upgrade from CI3 to CI4?
Generated API docs accessible at https://codeigniter4.github.io/api/
This is our first release candidate! A number of things have been fixed, and it is looking pretty good

Thank you to the community for stepping up to help make this the best PHP framework!
Do NOT post support questions or feature requests in response to this thread - those will be deleted. Instead, use the appropriate CodeIgniter 4 subforum. We are trying to make the best of the limited resources that we have!
Thank you, and ENJOY!
James Parry
Project Lead
Project Lead