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+<html>
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+    <meta http-equiv="Content-Language" content="en" />
+    <title>skalibs: how to upgrade</title>
+    <meta name="Description" content="skalibs: How to upgrade" />
+    <meta name="Keywords" content="skalibs installation upgrade" />
+    <!-- <link rel="stylesheet" type="text/css" href="http://skarnet.org/default.css" /> -->
+  </head>
+<body>
+
+<p>
+<a href="index.html">skalibs</a><br />
+<a href="http://skarnet.org/software/">Software</a><br />
+<a href="http://skarnet.org/">skarnet.org</a>
+</p>
+
+<h1> Upgrade incompatibilities: notes for developers </h1>
+
+<h2> From previous versions to 2.0.0.0 </h2>
+
+<ul>
+ <li> No compatibility is ensured. Most APIs haven't changed, but no guarantee
+is offered. </li>
+ <li> The most important change is probably the disparition of <tt>struct tai</tt>
+and <tt>struct taia</tt>, replaced with the <tt>tai_t</tt> and <tt>tain_t</tt>
+types. Attosecond precision has been removed - processor speed is almost capped now,
+and it looks like nanosecond precision will be enough for the foreseeable future. </li>
+ <li> Programs should now link with <tt>-lskarnet</tt> followed by the appropriate
+sysdeps links. </li>
+</ul>
+
+</body>
+</html>