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# Upgrading From XMDS 1.X

While XMDS2 is a complete rewrite of the XMDS project, much of the syntax has remained very similar. That said, your code will have to be rewritten as an XMDS2 program. We recommend that you work through the Quickstart Tutorial and perhaps the Worked Examples sections, and then you should be good to go.

The main news when switching to XMDS2 is the long list of new things you can do. If it’s an initial value problem, XMDS2 has a good chance of being able to solve it.

We have made the decision to call the executables “xmds2” and “xsil2graphics2” so that you can keep using your old installation in parallel with the new version.

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