Upgrading tiki from a very old version
I was told that our company's tiki was installed more than 10-12 years ago. I do have an admin access to it via the web interface. I would appreciate if someone can answer or give hints on the following questions:
- How to find out what version of tiki is currently installed?
- When we do an upgrade, will the system automatically upgrade the other components too, like PHP or MySql?
- We have some content already in our tiki. Would it be better just to get a fresh install of the latest tiki, and then import the data to it? If so, how to do it?
Thank you in advance for your help.