How to upgrade from version 1 to 1.72?

[eluser]1234qwer[/eluser]
Hello.

I have one application (CMS with photo album and others) made in code igniter 1.0, now I want upgrade to 1.72, I saw the help and there are descriptions in how to upgrade from 1 to 1.1, from 1.1 to 1.2... etc. But how to take this big step?

Do I have to do it? is a good idea? or my script will be completely breaked?

thanks

[eluser]1234qwer[/eluser]
No body knows?

[eluser]tomcode[/eluser]
Hm ... I don' know version 1.

You surly will need to fix some code, but with a little luck it could work out :

1. install an empty current CI.

2. Copy Your app over it, except ! the config folder.

3. Copy manually each personalized value of Your old config files into the new config files.

try and debug