CodeIgniter 2 documentation broken references

Hi,

Is it possible to fix old CodeIgniter documentation links? Codeigniter version 2?

For example, this old link which refers to "fil helper"...
https://ellislab.com/codeigniter/user-gu...elper.html

Redirects to this page : 
http://www.codeigniter.com/docs


The redirection should be : 
http://www.codeigniter.com/userguide2/he...elper.html


There is actually tons of old but useful and precious CI 2 Q&A threads over the web that contains CI 2 references. All theses references now redirect people to a broken link -> http://www.codeigniter.com/docs.

Is there someone from codeigniter able to fix that issue?