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You should upgrade to the newest version of CodeIgniter for security reasons.

What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )

You should upgrade to the newest version of CodeIgniter for security reasons.

Thanks for your reply. Do you know a best practices to do a version upgrade?

Follow the instructions here:
https://www.codeigniter.com/user_guide/i...ading.html

Is your server Apache or NGINX?

Gustavo, Hosting Support answered this

Our servers have a microcache capability that may have been caused by this behavior, now it has been deactivated for your domain. Could you please try it again?

The issue persist.. I must upgrade my Codeiniter version? would solve it the problem?

I updated Codeigniter to version 3.0.0 and the issue persist. I configured sessions in database but the trouble don't disapear

Code:

$config['sess_driver'] = 'database';
$config['sess_cookie_name'] = 'ci_sessions';
$config['sess_expiration'] = 7200;
$config['sess_save_path'] = 'ci_sessions';
$config['sess_match_ip'] = TRUE;
$config['sess_time_to_update'] = 300;
$config['sess_regenerate_destroy'] = FALSE;

What could I do? Locally in my computer I ran the app and works perfectly, but when I navigate mi app over Internet, sessions overlaped between users... I'm desperate! 

Note: In my ci_sessions table I can see this



This sessions were created from my user in only 5 minutes, is this normal?