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266<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
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284<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
285<li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
286<li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
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288<li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
289<li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
290<li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
291<li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
292<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
293<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
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311<li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li>
312<li class="toctree-l2"><a class="reference internal" href="../libraries/calendar.html">Calendaring Class</a></li>
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314<li class="toctree-l2"><a class="reference internal" href="../libraries/config.html">Config Class</a></li>
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320<li class="toctree-l2"><a class="reference internal" href="../libraries/ftp.html">FTP Class</a></li>
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322<li class="toctree-l2"><a class="reference internal" href="../libraries/input.html">Input Class</a></li>
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325<li class="toctree-l2"><a class="reference internal" href="../libraries/loader.html">Loader Class</a></li>
326<li class="toctree-l2"><a class="reference internal" href="../libraries/migration.html">Migrations Class</a></li>
327<li class="toctree-l2"><a class="reference internal" href="../libraries/output.html">Output Class</a></li>
328<li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination Class</a></li>
329<li class="toctree-l2"><a class="reference internal" href="../libraries/parser.html">Template Parser Class</a></li>
330<li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security Class</a></li>
331<li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
332<li class="toctree-l2"><a class="reference internal" href="../libraries/table.html">HTML Table Class</a></li>
333<li class="toctree-l2"><a class="reference internal" href="../libraries/trackback.html">Trackback Class</a></li>
334<li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography Class</a></li>
335<li class="toctree-l2"><a class="reference internal" href="../libraries/unit_testing.html">Unit Testing Class</a></li>
336<li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">URI Class</a></li>
337<li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li>
338<li class="toctree-l2"><a class="reference internal" href="../libraries/xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
339<li class="toctree-l2"><a class="reference internal" href="../libraries/zip.html">Zip Encoding Class</a></li>
340</ul>
341</li>
342</ul>
343<ul>
344<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
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348<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
349<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
350<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
351<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
352<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
353<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
354<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
355<li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
356<li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
357<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
358<li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
359</ul>
360</li>
361</ul>
362<ul>
363<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
364<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
365<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
366<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
367<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
368<li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
369<li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
370<li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
371<li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
372<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
373<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
374<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
375<li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
376<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
377<li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
378<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
379<li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
380<li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
381<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
382<li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
383<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
384<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
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426
427 <div class="section" id="upgrading-from-3-1-6-to-3-1-7">
428<h1>Upgrading from 3.1.6 to 3.1.7<a class="headerlink" href="#upgrading-from-3-1-6-to-3-1-7" title="Permalink to this headline"></a></h1>
429<p>Before performing an update you should take your site offline by
430replacing the index.php file with a static one.</p>
431<div class="section" id="step-1-update-your-codeigniter-files">
432<h2>Step 1: Update your CodeIgniter files<a class="headerlink" href="#step-1-update-your-codeigniter-files" title="Permalink to this headline"></a></h2>
433<p>Replace all files and directories in your <em>system/</em> directory.</p>
434<div class="admonition note">
435<p class="first admonition-title">Note</p>
436<p class="last">If you have any custom developed files in these directories,
437please make copies of them first.</p>
438</div>
439</div>
440<div class="section" id="step-2-remove-usage-of-captcha-helper-extra-parameters-deprecation">
441<h2>Step 2: Remove usage of CAPTCHA helper extra parameters (deprecation)<a class="headerlink" href="#step-2-remove-usage-of-captcha-helper-extra-parameters-deprecation" title="Permalink to this headline"></a></h2>
442<p>The <a class="reference internal" href="../helpers/captcha_helper.html"><span class="doc">CAPTCHA Helper</span></a> function
443<a class="reference internal" href="../helpers/captcha_helper.html#create_captcha" title="create_captcha"><code class="xref php php-func docutils literal"><span class="pre">create_captcha()</span></code></a> allows passing of its <code class="docutils literal"><span class="pre">img_path</span></code>, <code class="docutils literal"><span class="pre">img_url</span></code>
444and <code class="docutils literal"><span class="pre">font_path</span></code> options as the 2nd, 3rd and 4th parameters respectively.</p>
445<p>This kind of usage is now deprecated and you should just pass the options
446in question as part of the first parameter array.</p>
447<div class="admonition note">
448<p class="first admonition-title">Note</p>
449<p class="last">The functionality in question is still available, but you’re
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