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<title>Version 4.1.5 — CodeIgniter 4.3.8 documentation</title>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/routing.html">URI Routing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/controllers.html">Controllers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/filters.html">Controller Filters</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/message.html">HTTP Messages</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/request.html">Request Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/incomingrequest.html">IncomingRequest Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/content_negotiation.html">Content Negotiation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/methodspoofing.html">HTTP Method Spoofing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../incoming/restful.html">RESTful Resource Handling</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../outgoing/index.html">Building Responses</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/views.html">Views</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/view_cells.html">View Cells</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/table.html">HTML Table Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/response.html">HTTP Responses</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/api_responses.html">API Response Trait</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/localization.html">Localization</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../outgoing/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Working with Databases</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/events.html">Database Events</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities</a></li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../models/index.html">Modeling Data</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../models/model.html">Using CodeIgniter's Model</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../models/entities.html">Using Entity Classes</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../dbmgmt/index.html">Managing Databases</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/forge.html">Database Manipulation with Database Forge</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/migration.html">Database Migrations</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/seeds.html">Database Seeding</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../dbmgmt/db_commands.html">Database Commands</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../libraries/index.html">Library Reference</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/caching.html">Caching Driver</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/cookies.html">Cookies</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/curlrequest.html">CURLRequest Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/email.html">Email Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/encryption.html">Encryption Service</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/files.html">Working with Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/file_collections.html">File Collections</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/honeypot.html">Honeypot Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/images.html">Image Manipulation Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/pagination.html">Pagination</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/publisher.html">Publisher</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/security.html">Security</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/sessions.html">Session Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/throttler.html">Throttler</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/time.html">Times and Dates</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/typography.html">Typography</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/uploaded_files.html">Working with Uploaded Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/uri.html">Working with URIs</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/user_agent.html">User Agent Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../libraries/validation.html">Validation</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/filesystem_helper.html">Filesystem Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/test_helper.html">Test Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../testing/index.html">Testing</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../testing/overview.html">Getting Started</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/database.html">Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/fabricator.html">Generating Data</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/controllers.html">Controller Testing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/feature.html">HTTP Testing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/response.html">Testing Responses</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/benchmark.html">Benchmarking</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/debugging.html">Debugging Your Application</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../testing/mocking.html">Mocking</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../cli/index.html">Command Line Usage</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_overview.html">CLI Overview</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_controllers.html">Running Controllers via CLI</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/spark_commands.html">Spark Commands</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_commands.html">Creating Spark Commands</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_generators.html">CLI Generators</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_library.html">CLI Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../cli/cli_request.html">CLIRequest Class</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../extending/index.html">Extending CodeIgniter</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../extending/core_classes.html">Creating Core System Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/common.html">Replacing Common Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/events.html">Events</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/basecontroller.html">Extending the Controller</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/authentication.html">Authentication</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/composer_packages.html">Creating Composer Packages</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../extending/contributing.html">Contributing to CodeIgniter</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../libraries/official_packages.html">Official Packages</a></li>
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<a class="btn btn-neutral float-right" href="https://github.com/codeigniter4/CodeIgniter4/edit/develop/user_guide_src/source/changelogs/v4.1.5.rst">Edit this page</a>
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<li class="breadcrumb-item active">Version 4.1.5</li>
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<section id="version-4-1-5">
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<h1>Version 4.1.5<a class="headerlink" href="#version-4-1-5" title="Permalink to this headline"></a></h1>
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<p>Release Date: November 8, 2021</p>
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<p><strong>4.1.5 release of CodeIgniter4</strong></p>
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<div class="contents local topic" id="contents">
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<ul class="simple">
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<li><p><a class="reference internal" href="#breaking" id="id1">BREAKING</a></p></li>
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<li><p><a class="reference internal" href="#enhancements" id="id2">Enhancements</a></p></li>
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<li><p><a class="reference internal" href="#changes" id="id3">Changes</a></p></li>
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<li><p><a class="reference internal" href="#deprecations" id="id4">Deprecations</a></p></li>
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<li><p><a class="reference internal" href="#bugs-fixed" id="id5">Bugs Fixed</a></p></li>
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</ul>
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</div>
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<section id="breaking">
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<h2><a class="toc-backref" href="#id1">BREAKING</a><a class="headerlink" href="#breaking" title="Permalink to this headline"></a></h2>
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<ul class="simple">
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<li><p>Fixed <a class="reference external" href="https://github.com/codeigniter4/CodeIgniter4/issues/2913">a bug</a> on CSRF protection. Now CSRF protection works on PUT/PATCH/DELETE requests when CSRF filter is applied. If you use such requests, you need to send CSRF token.</p></li>
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<li><p>In the previous version, if you didn’t provide your own headers, <code class="docutils literal notranslate"><span class="pre">CURLRequest</span></code> would send the request-headers from the browser, due to a bug. As of this version, it does not send them.</p></li>
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<li><p>Fixed <code class="docutils literal notranslate"><span class="pre">BaseBuilder::insertBatch()</span></code> return value for <code class="docutils literal notranslate"><span class="pre">testMode</span></code>. Now it returns SQL string array instead of a number of affected rows. This change was made because of maintaining compatibility between returning types for batch methods. Now the returned data type for <code class="docutils literal notranslate"><span class="pre">BaseBuilder::insertBatch()</span></code> is the same as the <cite>updateBatch()</cite> method.</p></li>
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<li><p>Major optimizations have been made to the way data is processed in <code class="docutils literal notranslate"><span class="pre">BaseBuilder::insertBatch()</span></code> and <code class="docutils literal notranslate"><span class="pre">BaseBuilder::updateBatch()</span></code> methods. This resulted in reduced memory usage and faster query processing. As a trade-off, the result generated by the <code class="docutils literal notranslate"><span class="pre">$query->getOriginalQuery()</span></code> method was changed. It no longer returns the query with the binded parameters, but the actual query that was run.</p></li>
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</ul>
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</section>
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<section id="enhancements">
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<h2><a class="toc-backref" href="#id2">Enhancements</a><a class="headerlink" href="#enhancements" title="Permalink to this headline"></a></h2>
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<ul class="simple">
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<li><p>Added Cache config for reserved characters</p></li>
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<li><p>The <a class="reference internal" href="../dbmgmt/forge.html#adding-foreign-keys"><span class="std std-ref">addForeignKey()</span></a> function of the <code class="docutils literal notranslate"><span class="pre">Forge</span></code> class can now define composite foreign keys in an array</p></li>
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<li><p>The <code class="docutils literal notranslate"><span class="pre">dropKey</span></code> function of the <code class="docutils literal notranslate"><span class="pre">Forge</span></code> class can remove key</p></li>
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<li><p>Now <code class="docutils literal notranslate"><span class="pre">_</span></code> can be used as separators in environment variable. See <a class="reference internal" href="../general/configuration.html#env-var-namespace-separator"><span class="std std-ref">Namespace Separator</span></a>.</p></li>
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<li><p>Added Multiple filters for a route and Classname filter</p></li>
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<li><p>Reduced memory usage of <code class="docutils literal notranslate"><span class="pre">insertBatch()</span></code> and <code class="docutils literal notranslate"><span class="pre">updateBatch()</span></code></p></li>
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<li><p>Added <a class="reference internal" href="../libraries/security.html#csrf-protection-methods"><span class="std std-ref">Session based CSRF Protection</span></a></p></li>
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<li><p>Added <code class="docutils literal notranslate"><span class="pre">valid_url_strict</span></code> rule for <code class="docutils literal notranslate"><span class="pre">Validation</span></code></p></li>
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<li><dl class="simple">
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<dt>Debug Toolbar</dt><dd><ul>
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<li><p>Added formatted query string to timeline</p></li>
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<li><p>Improved keyword highlighting and escaping of query strings</p></li>
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</ul>
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</dd>
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</dl>
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</li>
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</ul>
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</section>
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<section id="changes">
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<h2><a class="toc-backref" href="#id3">Changes</a><a class="headerlink" href="#changes" title="Permalink to this headline"></a></h2>
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<ul class="simple">
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<li><p>Always escape identifiers in the <code class="docutils literal notranslate"><span class="pre">set</span></code>, <code class="docutils literal notranslate"><span class="pre">setUpdateBatch</span></code>, and <code class="docutils literal notranslate"><span class="pre">insertBatch</span></code> functions in <code class="docutils literal notranslate"><span class="pre">BaseBuilder</span></code>.</p></li>
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</ul>
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</section>
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<section id="deprecations">
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<h2><a class="toc-backref" href="#id4">Deprecations</a><a class="headerlink" href="#deprecations" title="Permalink to this headline"></a></h2>
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<ul class="simple">
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<li><p>Deprecated <code class="docutils literal notranslate"><span class="pre">CodeIgniter\\Cache\\Handlers\\BaseHandler::RESERVED_CHARACTERS</span></code> in favor of the new config property</p></li>
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</ul>
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</section>
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<section id="bugs-fixed">
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<h2><a class="toc-backref" href="#id5">Bugs Fixed</a><a class="headerlink" href="#bugs-fixed" title="Permalink to this headline"></a></h2>
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<p>See the repo’s
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<a class="reference external" href="https://github.com/codeigniter4/CodeIgniter4/blob/develop/changelogs/CHANGELOG_4.1.md">CHANGELOG_4.1.md</a>
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for a complete list of bugs fixed.</p>
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