[LRUG] Upgrading a Rails v2.1.2

[Chris Waters]

Hi LRUG,

I've got a pretty large application (200ish model classes, 100ish 
controllers) that's been running happily(ish) for about 4 years now.

It is Rails 2.1.2 running against Ruby 1.8.7.  It feels as though it is 
time that we brought things up-to-date as things are starting to creak.


To my mind, there are 2 options;
* we upgrade to v2.3.4 and be happy with that for now
* or continue on from 2.3.4 and go the whole hog and get to v3.2

One thing that is looming in the background is that the test coverage 
is, er, not 100% and that a lot of the code has been written a long time 
ago by coders who are no longer here.

I'm assuming that the upgrade to 2.3.4 should be reasonably straight 
forward, and that the big leap to 3.2 is likely to hurt more.


Anyone get any words of advice?  Is it worth the pain?  How many people 
out there are still running against 2.1.2?


Thanks for any comments/help

Chris.


Chris Waters
Lead Developer
YOU Group