Can I run old GUI code with Matlab 2014/2015?

I am trying to run some code that was written with a much older version of Matlab (possibly 2011), and am running into a huge number of errors due to updates to Matlab since the code was written. The code is for a program with a GUI, and this seems to be causing many of the problems. Are there tools available for running old code with newer versions of Matlab, or making the necessary updates to the code so it can run?

Answer 1

[Image Analyst]

I have not had any errors. The only difference I found was that when I used plot() before with no color specified, it used to plot data in multiple calls (with hold on after the first call to plot) in blue but now it plots them in different colors.