New Version Matlab means Users Need New MCR?

Hello!

I am developing code for clients that don't have MATLAB, so I use the Application Compiler under the APPS tab. When I run it, I have the "Runtime downloaded from web" box checked, so they only have to do this once, to my understanding.

Now that there is a new release (2014b), am I correct that updates to the code sent to the client will trigger another download of MCR from the web without any needed action by me or the client? In other words, just let them know that it will download the MCR again, and the installer will replace whatever they have? And all previous code needs to be recompiled with the new release, since the old MCR is gone?

Thanks

Doug

Answer 1

[Sean de Wolski]

When you compile code with the new release it will require a new version of the MCR to be downloaded. Old applications can continue to run against older versions of the MCR (there can be multiple versions installed at a time), but you they will need the new MCR as well for any new functionality.

[Douglas Anderson]

Thanks Sean -- then the applications know which MCR to look at?

[Sean de Wolski]

Yes.

http://www.mathworks.com/help/releases/R2014b/compiler/working-with-the-mcr.html#br2jauc-37

[Image Analyst]

I always give the MCRInstaller.exe to my end users and have them run it. I do not know if they run my/your executable if that will automatically and seamlessly download and install the 500+ MB MCR. Does it Sean? Anyway I'd at least have to tell them if that might happen, or else I'd get lots of calls that the app has hung when they try to run it, or else get questions about some new unexpected screens alerting them of something being downloaded and installed.

[Sean de Wolski]

When it's packaged, the redistribute folder contains a web installer to prompt:

[Image Analyst]

Is that only if you use deploytool? Because I don't use that - I only use mcc. I've not used deploytool since it is/was too primitive and couldn't do things like have custom graphics and other things that full fledged installer apps have. If it does now, then maybe I should take another look at it.

[Sean de Wolski]

@IA, it does. It was redone a few releases ago (12b maybe?) and now supports images/splash screens/all of the stuff you would expect.