can I use several version of simulink?

I have R2011b right now. To get different versions simulink like 2014b, do I have to buy it? Or my license cover that?

Thank you!

>> ver
-------------------------------------------------------------------------------------
MATLAB Version 7.13.0.564 (R2011b)
MATLAB License Number: •••••••
Operating System: Microsoft Windows 7 Version 6.1 (Build 7601: Service Pack 1)
Java VM Version: Java 1.6.0_17-b04 with Sun Microsystems Inc. Java HotSpot(TM) 64-Bit Server VM mixed mode
-------------------------------------------------------------------------------------
MATLAB                                                Version 7.13       (R2011b)
Simulink                                              Version 7.8        (R2011b)
Fixed-Point Toolbox                                   Version 3.4        (R2011b)
MATLAB Coder                                          Version 2.1        (R2011b)
Simulink Coder                                        Version 8.1        (R2011b)
Stateflow                                             Version 7.8        (R2011b)

Answer 1

[John D'Errico]

No. You cannot use Simulink (or any other MATLAB toolbox) for a newer release of MATLAB with an older release.

In order to use the newer version of Simulink, you must upgrade your MATLAB release. Sorry.

[kevin kawakami]

Thank you, John. I understand to upgrade Simulink.

Answer 2

[Michelle Hirsch]

If your license is current on software maintenance service, you can upgrade to Simulink R2014b (or R2015a, for that matter) for no additional cost.