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Restore SearchStat to retain backward compatibility with older Blitz's particularly for Dashboard.
author Dan Creswell <dan.creswell@gmail.com>
date Fri, 28 Aug 2009 21:01:53 +0100
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1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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2 <html>
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3 <head>
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4 <title>Blitz Licensing</title>
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5 </head>
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6 <body>
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7 <h1>Blitz Licensing</h1>
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9 <h2>Introduction</h2>
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11 The key factor in determining how Blitz's licensing (and that of Sleepycat's with respect to Db) affects you, is whether you plan to use it as is or with modifications.
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13 <h3>Using Blitz Unmodified</h3>
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15 <p>In all cases where you wish to use Blitz unmodified (compiled from source or using binaries), there are minimal licensing requirements. You may do as you wish, including:
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16 </p>
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17 <ol>
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18 <li>Incorporating Blitz into a commercial product.</li>
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19 <li>Using Blitz for research.</li>
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20 <li>Using Blitz in another open source project.</li>
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21 </ol>
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23 <p>The only stipulation is that you obey the requirements in Blitz's license file which, amongst other things, requires that you include a copy of the license in your software release (be it a commercial product or source code release for research purposes).</p>
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25 <h3>Using Blitz in Modified Form</h3>
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27 <p>In the case where you release your modifications publicly, in source code form, the licensing restrictions are identical to those for using Blitz unmodified.</p>
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29 <p>If you make modifications to Blitz and wish to keep them proprietary, you become subject in full to the Sleepycat <a href="http://www.sleepycat.com/download/licensinginfo.shtml">licensing conditions</a>. Under some very limited circumstances, Sleepycat permits usage of Blitz/Db without requiring a commercial license but in the majority of such cases, you will be required to pay for a commercial Db license.</p>
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31 <a NAME="sleepycat"></a><h3>Appendix A - Sleepycat's position on Licensing</h3>
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32
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33 Explained in this email from the Sleepycat sales team:
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35 <pre>
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36 Dan, I think as long as the customer doesn't see BDB at all, but BDB only runs behind your BSD-licensed Blitz
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37 application, that your users can use Blitz (and indirectly Berkeley DB) without buying a separate license from
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38 Sleepycat. As long as they don't modify Blitz or call the Berkeley DB APIs directly, then this use should be all
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39 right under Sleepycat's public license.
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41 If they should make proprietary modifications to Blitz, or make direct calls to Berkeley DB APIs, then they'd need
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42 to come to us for a commercial license, or make their own source code publicly available.
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43 </pre>
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45 <p><div align="center"><a href="../index.html">Back to Documentation</a></div></p>
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46 </body>
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47 </html>