16: FactoryStudio Versions and Licenses > Using Multiple Versions Concurrently
  
Using Multiple Versions Concurrently
Major or minor releases install to different folders from previous releases. This lets you keep different FactoryStudio releases concurrently installed on the same computer.
The folder structure is:
\FactoryStudio—Folder with the project selection and management tools.
\FactoryStudio\fs-2014.1—Files specific to version fs-2014.1.
\FactoryStudio\fs-2012.1—Files specific to version fs-2012.1.
You will have as many sub folders as product versions are installed in your computer.
*Note: Because the installation footprint is very small, only around 100MB, we strongly recommend that you keep all versions. When opening a project, the system automatically verifies which version the project was created with, and it will open the version that matches the project.
If you try to open a project created with a new product version (for instance you have fs-2012.1 and are trying to open a project created with version 2014.1), the system will not open or run that project.At the top-right left area of the your workspace you will see warning message explaining why the project cannot be opened.
If you try to open a project last used with a newer update, for instance, you have version fs-2014.1.10 and you try to open a project that was used with version fs-fs-2014.1.20, as long your have the license for fs-2014, you still are able to run that project, and open the engineering configuration, even if the project is using an update that is newer that what you have in your computer. For protection and to avoid inconsistencies, we don’t allow that project to be modified though, in this scenario it opens in read-only. On the top-right left of your engineering tool you have a message when that scenario occurs.
If you have a project that was created in a previous product release (either major or minor), you can upgrade it to the version you are currently using. For more information, seeUpgrading Projects