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09-14-2015, 01:29 AM
(This post was last modified: 09-14-2015, 01:30 AM by Muzikant.)
I reccomend you to use 3.x definetely. Most of 2.x tutorials can be used with version 3.x too. The only problem I found is, that you need to know, that 3.x version class names and files must start with a capital letter.
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It is not a matter of choice anymore, use Codeigniter 3.x.