insert_id not working

[eluser]Aken[/eluser]
[quote author="Fred Riley" date="1359410627"]I do hope that there'll not be such major changes when v3 finally comes around, as a major reason for adopting CI over 'freeform' PHP, as I used to write, was the promise of easier maintainability and scalability. Having to do a semi-rewrite of the application for v2 has dented that promise for me, but I'm too far down the CI road now to turn away.[/quote]

There will be some things that need to be revised. You can get a good idea from these files:

https://github.com/EllisLab/CodeIgniter/...de_300.rst
https://github.com/EllisLab/CodeIgniter/...ngelog.rst

You can always use the 3.0 code as it sits right now and work on moving your application directly to 3.0. Though that may provide more headaches for you, since you'll get new errors also (like the Session library is now a driver, and your authentication library will probably throw errors because of it). It could be more work, but it would save you a step from needing to upgrade again in the near future.