Redmine

Wow, that's old... I'm not sure if you can just jump to the latest version, but you could backup and go to version 1.x, then 2.x...

Are there instructions on how to do an upgrade of Redmine?

This is the version we are running... Redmine 0.8.7.stable.3095 (MySQL)

Thanks!

Here it is

First of all back up all data (redmine folder, databases, redmine files).

I suggest to create a copy of your instance so you can do testing if everything works flawesly without breaking down the old one.

After you check everything then shut down your old instance, backup all data and do the upgrade.