Create classic.md

Author: egonw

classic.md

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+---
+title: WikiPathways Classic
+---
+<h2>WikiPathways Classic</h2>
+<p>WikiPathways was the name used until May 2026 for the old infrastructure, based on MediaWiki software.
+The Classic infrastructure was no longer maintainable and replaced by the current website.</p>
+
+If you used functionality form Classic that you have not found a replacement for on the new website,
+please feel free to reach out to our architects:
+<ul>
+<li>Martina Summer-Kutmon: <a href="mailto:martina.kutmon@maastrichtuniversity.nl">martina.kutmon@maastrichtuniversity.nl</a></li>
+<li>Egon Willighagen: <a href="mailto:egon.willighagen@maastrichtuniversity.nl">egon.willighagen@maastrichtuniversity.nl</a></li>
+</ul>