How to save modifications

Hi!

I would like to understand something, when making changes with Studio, adding Fields, modifying Labels, modifying Relationships and Layouts, are these changes only applied in the database or even in PHP files?

I ask you this because I would like to understand how I have to behave in the modification of my istance, what I have to save every time I make changes to be sure I can go back if something goes wrong.

It changes php files, and also some things in the database.

This might be a good read to get you started:

http://blog.indrek.io/articles/version-control-and-deployment-practices-for-sugarcrm/

it applies equally to SuiteCRM.