exe file you downloaded from the WebStore. arcgis 10.3 free download provides a comprehensive and comprehensive pathway for students to see progress after the end of each module.
So, in short, if you need to use MGET, I recommend you do not switch to ArcGIS 10.3 at this time.
If you are skilled with Python, you may be able to figure out how to copy over your MGET installation The ArcGIS 10.2 copy of Python into which your MGET was installed while MGET will still appear to be installed, I’m not sure it will work.
Also, I suspect but am not certain that if you have 10.2 with MGET and you upgrade to 10.3, the ArcGIS 10.3 installer will remove Work with 10.3, so if you have a brand new installation of 10.3, you will not be able to install MGET on it using the installer.
I do know that MGET’s installer will not yet I have been tied up with another project and unable to test MGET’s compatibility with it.