Upgrading Drupal

What are the advantages of upgrading our Drupal version?

Is it only for security purposes? I havent upgraded my Drupal version for almost a year now and nothing went wrong so far? Can someone please advise?

Im assuming the only CON is: its a pain

Something similar was brought up in another post but I wanted to clarify a few specifics of the problem.

drupal 6.13 with marinelli 6x-2.95

after a successful (read: no errors) upgrade everything looked good here on my Firefox browser. I received a call from the client saying the site was looking bad on their IE system. I confirmed that it appeared drupal wasn't connecting to the template correctly (or at all).

Hello.
The person in charge of creating the database (MySQL) for my Drupal website made it originally for php4. Now I cannot use modules like Image API or filefield.

How can I upgrade the database to php5 without losing the data?

Thanks in advance.

So, I followed all the readme instructions to upgrade to 6.13. When I got to /update.php, I get a full installation window with "Choose language" "Verify requirements," etc.

First of all, is this what should be showing up? It didn't sound that way from the readme.

Secondly, going along with this screen, it won't accept my database information. When I submit it, it just refreshes on the same page with emptied fields, though I'm 99% sure everything there is correct.

Can someone help me out here? I'm desperate.

Hi all,

I have done all the steps for a successful upgrade from my 6.9 to 6.13 but it's just not working. The update page doesn't find anything to update and there are no errors.
The modules updates run without any problem.

My server is a Shared Linux Hostgator:
MySQL database 5.1.30
PHP 5.2.9

Thanks in advance

I have gone through the normal procedure of updating from Drupal v6.3 to v6.13 on a test subdomain. Everything went well and I was able to view the site as it should be, however, it seems overnight something is deleting the database entirely. I've had discussions with my ISP and we have determined it is not their server but must be something like a sql query running at a certain time. Anyone had this experience before or know what is going on??

Thanks