Installation guide

I Standard Installation Procedure
Upgrade Installations
If you are upgrading your MATLAB installation to the latest release, The
MathWorks recommends that you install the new version in a new installation
folder. You do not need to delete an existing MATLAB installation before
installing this release. You can run multiple versions of MATLAB on the
same system—see "Running Multiple Versions of MATLAB" on page 3-21.
For information about adding an additional toolbox to an existing MATLAB
installation, see "Installing Additional Products" on page 1-26.
Note If you choose to overwrite an existing installation from a prior release,
the installer deletes all the products in your installation folder and installs
only those products included in your current license, to avoid potential
product incompatibilities. For example, if your existing installation includes
10 products, but your current PLP only includes 9 of those products, your
MATLAB installation will only include the 9 products included in your
current PLP.
Saving MATLAB Preferences Files
The installer does not overwrite existing MATLAB preference files on
your system. Note, however, that if you plan to remove a Release 12 or
earlier installation, you might want to first save your MATLAB preference
files. Before Release 12.1, the uninstaller automatically deleted MATLAB
preferences files. See "Using the Uninstaller" on page 3-30 for more
information.
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