What is the best authentication library for CodeIgniter ?

Good article. Thanks.

However ...
No link for IonAuth.
Link for A3M is pointing to BitAuth.

Also would be nice to have date of first and latest release or commit to give a hint about if the library is mature and still under active development.

Thanks peterdenk,
your advice in the point and i updated article with right links,also i will update this list if any library outdated or have important changes

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