Hey slimboyfatz35,
That is certainly a loaded question! So there are a few key points to keep in mind.
1. BACKUP. EVERYTHING. Pretty obvious step, but worth emphasizing. Backup ALL your files, AND your database. That way if things go awry, you’re not hung out to dry.
2. Update on a sub-domain on a different database first. That way, you can get an idea for what obstacles may present themselves when updating the live site.
3. Update every addon you have. Every last one of them. If there is one thing I tend to see, it’s an out of date addon causing a developer to go insane and waste time.
4. Check specific version notes outlined for any oddities that may arise.
5. And finally follow the update instructions to a tee.
Since you’re already on EE 2, I don’t see it as being as big an issue as going from 1.x to 2.x, but still, always better to have a plan in case things get funky.
And, when in the process, if you come across any issues, feel free to post them up here on the forums.
Hope I didn’t scare you off in wanting to update (because I totally recommend it), but, I just want to inform you of what *could* happen. It could go perfectly smooth and flawless, which would be awesome. But, for the “if"s and “could"s, I figured I’d prepare you as best I could.
Does that make it a little clearer?
Thanks slimboyfatz35!