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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="../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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<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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<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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<div class="wy-nav-content">
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<div class="rst-content">
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<a class="btn btn-neutral float-right" href="https://github.com/codeigniter4/CodeIgniter4/edit/develop/user_guide_src/source/installation/upgrade_420.rst">Edit this page</a>
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<div role="navigation" aria-label="Page navigation">
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<ul class="wy-breadcrumbs">
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<li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
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<li class="breadcrumb-item"><a href="index.html">Installation</a></li>
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<li class="breadcrumb-item"><a href="upgrading.html">Upgrading From a Previous Version</a></li>
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<li class="breadcrumb-item active">Upgrading from 4.1.9 to 4.2.0</li>
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<li class="wy-breadcrumbs-aside">
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</li>
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</ul>
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<hr/>
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</div>
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<div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
|
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<div itemprop="articleBody">
|
||
|
||
<section id="upgrading-from-4-1-9-to-4-2-0">
|
||
<h1>Upgrading from 4.1.9 to 4.2.0<a class="headerlink" href="#upgrading-from-4-1-9-to-4-2-0" title="Permalink to this headline"></a></h1>
|
||
<p>Please refer to the upgrade instructions corresponding to your installation method.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference internal" href="installing_composer.html#app-starter-upgrading"><span class="std std-ref">Composer Installation App Starter Upgrading</span></a></p></li>
|
||
<li><p><a class="reference internal" href="installing_composer.html#adding-codeigniter4-upgrading"><span class="std std-ref">Composer Installation Adding CodeIgniter4 to an Existing Project Upgrading</span></a></p></li>
|
||
<li><p><a class="reference internal" href="installing_manual.html#installing-manual-upgrading"><span class="std std-ref">Manual Installation Upgrading</span></a></p></li>
|
||
</ul>
|
||
<div class="contents local topic" id="contents">
|
||
<ul class="simple">
|
||
<li><p><a class="reference internal" href="#mandatory-file-changes" id="id1">Mandatory File Changes</a></p>
|
||
<ul>
|
||
<li><p><a class="reference internal" href="#index-php-and-spark" id="id2">index.php and spark</a></p></li>
|
||
<li><p><a class="reference internal" href="#config-constants-php" id="id3">Config/Constants.php</a></p></li>
|
||
<li><p><a class="reference internal" href="#composer-json" id="id4">composer.json</a></p></li>
|
||
</ul>
|
||
</li>
|
||
<li><p><a class="reference internal" href="#breaking-changes" id="id5">Breaking Changes</a></p></li>
|
||
<li><p><a class="reference internal" href="#breaking-enhancements" id="id6">Breaking Enhancements</a></p></li>
|
||
<li><p><a class="reference internal" href="#project-files" id="id7">Project Files</a></p>
|
||
<ul>
|
||
<li><p><a class="reference internal" href="#content-changes" id="id8">Content Changes</a></p></li>
|
||
<li><p><a class="reference internal" href="#all-changes" id="id9">All Changes</a></p></li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</div>
|
||
<section id="mandatory-file-changes">
|
||
<h2><a class="toc-backref" href="#id1">Mandatory File Changes</a><a class="headerlink" href="#mandatory-file-changes" title="Permalink to this headline"></a></h2>
|
||
<section id="index-php-and-spark">
|
||
<h3><a class="toc-backref" href="#id2">index.php and spark</a><a class="headerlink" href="#index-php-and-spark" title="Permalink to this headline"></a></h3>
|
||
<p>The following files received significant changes and
|
||
<strong>you must merge the updated versions</strong> with your application:</p>
|
||
<ul class="simple">
|
||
<li><p><code class="docutils literal notranslate"><span class="pre">public/index.php</span></code></p></li>
|
||
<li><p><code class="docutils literal notranslate"><span class="pre">spark</span></code></p></li>
|
||
</ul>
|
||
<div class="admonition important">
|
||
<p class="admonition-title">Important</p>
|
||
<p>If you don’t update the above two files, CodeIgniter will not work at all
|
||
after running <code class="docutils literal notranslate"><span class="pre">composer</span> <span class="pre">update</span></code>.</p>
|
||
<p>The upgrade procedure, for example, is as follows:</p>
|
||
<div class="highlight-console notranslate"><div class="highlight"><pre><span></span><span class="go">composer update</span>
|
||
<span class="go">cp vendor/codeigniter4/framework/public/index.php public/index.php</span>
|
||
<span class="go">cp vendor/codeigniter4/framework/spark .</span>
|
||
</pre></div>
|
||
</div>
|
||
</div>
|
||
</section>
|
||
<section id="config-constants-php">
|
||
<h3><a class="toc-backref" href="#id3">Config/Constants.php</a><a class="headerlink" href="#config-constants-php" title="Permalink to this headline"></a></h3>
|
||
<p>The constants <code class="docutils literal notranslate"><span class="pre">EVENT_PRIORITY_LOW</span></code>, <code class="docutils literal notranslate"><span class="pre">EVENT_PRIORITY_NORMAL</span></code> and <code class="docutils literal notranslate"><span class="pre">EVENT_PRIORITY_HIGH</span></code> are deprecated, and the definitions are moved to <code class="docutils literal notranslate"><span class="pre">app/Config/Constants.php</span></code>. If you use these constants, define them in <code class="docutils literal notranslate"><span class="pre">app/Config/Constants.php</span></code>. Or use new class constants <code class="docutils literal notranslate"><span class="pre">CodeIgniter\Events\Events::PRIORITY_LOW</span></code>, <code class="docutils literal notranslate"><span class="pre">CodeIgniter\Events\Events::PRIORITY_NORMAL</span></code> and <code class="docutils literal notranslate"><span class="pre">CodeIgniter\Events\Events::PRIORITY_HIGH</span></code>.</p>
|
||
</section>
|
||
<section id="composer-json">
|
||
<h3><a class="toc-backref" href="#id4">composer.json</a><a class="headerlink" href="#composer-json" title="Permalink to this headline"></a></h3>
|
||
<p>If you use Composer, when you installed CodeIgniter v4.1.9 or before, and
|
||
if there are <code class="docutils literal notranslate"><span class="pre">App\\</span></code> and <code class="docutils literal notranslate"><span class="pre">Config\\</span></code> namespaces in your <code class="docutils literal notranslate"><span class="pre">/composer.json</span></code>’s <code class="docutils literal notranslate"><span class="pre">autoload.psr-4</span></code>
|
||
like the following, you need to remove these lines, and run <code class="docutils literal notranslate"><span class="pre">composer</span> <span class="pre">dump-autoload</span></code>.</p>
|
||
<div class="highlight-text notranslate"><div class="highlight"><pre><span></span>{
|
||
...
|
||
"autoload": {
|
||
"psr-4": {
|
||
"App\\": "app", <-- Remove this line
|
||
"Config\\": "app/Config" <-- Remove this line
|
||
}
|
||
},
|
||
...
|
||
}
|
||
</pre></div>
|
||
</div>
|
||
</section>
|
||
</section>
|
||
<section id="breaking-changes">
|
||
<h2><a class="toc-backref" href="#id5">Breaking Changes</a><a class="headerlink" href="#breaking-changes" title="Permalink to this headline"></a></h2>
|
||
<ul class="simple">
|
||
<li><p>The <code class="docutils literal notranslate"><span class="pre">system/bootstrap.php</span></code> file no longer returns a <code class="docutils literal notranslate"><span class="pre">CodeIgniter</span></code> instance, and does not load the <code class="docutils literal notranslate"><span class="pre">.env</span></code> file (now handled in <code class="docutils literal notranslate"><span class="pre">index.php</span></code> and <code class="docutils literal notranslate"><span class="pre">spark</span></code>). If you have code that expects these behaviors it will no longer work and must be modified. This has been changed to make <a class="reference external" href="https://www.php.net/manual/en/opcache.preloading.php">Preloading</a> easier to implement.</p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="breaking-enhancements">
|
||
<h2><a class="toc-backref" href="#id6">Breaking Enhancements</a><a class="headerlink" href="#breaking-enhancements" title="Permalink to this headline"></a></h2>
|
||
<ul class="simple">
|
||
<li><p>The method signature of <code class="docutils literal notranslate"><span class="pre">Validation::setRule()</span></code> has been changed. The <code class="docutils literal notranslate"><span class="pre">string</span></code> typehint on the <code class="docutils literal notranslate"><span class="pre">$rules</span></code> parameter was removed. Extending classes should likewise remove the parameter so as not to break LSP.</p></li>
|
||
<li><p>The method signature of <code class="docutils literal notranslate"><span class="pre">CodeIgniter\Database\BaseBuilder::join()</span></code> and <code class="docutils literal notranslate"><span class="pre">CodeIgniter\Database\*\Builder::join()</span></code> have been changed. The <code class="docutils literal notranslate"><span class="pre">string</span></code> typehint on the <code class="docutils literal notranslate"><span class="pre">$cond</span></code> parameter was removed. Extending classes should likewise remove the parameter so as not to break LSP.</p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="project-files">
|
||
<h2><a class="toc-backref" href="#id7">Project Files</a><a class="headerlink" href="#project-files" title="Permalink to this headline"></a></h2>
|
||
<p>Numerous files in the <strong>project space</strong> (root, app, public, writable) received updates. Due to
|
||
these files being outside of the <strong>system</strong> scope they will not be changed without your intervention.
|
||
There are some third-party CodeIgniter modules available to assist with merging changes to
|
||
the project space: <a class="reference external" href="https://packagist.org/explore/?query=codeigniter4%20updates">Explore on Packagist</a>.</p>
|
||
<div class="admonition note">
|
||
<p class="admonition-title">Note</p>
|
||
<p>Except in very rare cases for bug fixes, no changes made to files for the project space
|
||
will break your application. All changes noted here are optional until the next major version,
|
||
and any mandatory changes will be covered in the sections above.</p>
|
||
</div>
|
||
<section id="content-changes">
|
||
<h3><a class="toc-backref" href="#id8">Content Changes</a><a class="headerlink" href="#content-changes" title="Permalink to this headline"></a></h3>
|
||
<p>The following files received significant changes (including deprecations or visual adjustments)
|
||
and it is recommended that you merge the updated versions with your application:</p>
|
||
<ul class="simple">
|
||
<li><dl class="simple">
|
||
<dt><code class="docutils literal notranslate"><span class="pre">app/Config/Routes.php</span></code></dt><dd><ul>
|
||
<li><p>To make the default configuration more secure, auto-routing has been changed to disabled by default.</p></li>
|
||
</ul>
|
||
</dd>
|
||
</dl>
|
||
</li>
|
||
</ul>
|
||
</section>
|
||
<section id="all-changes">
|
||
<h3><a class="toc-backref" href="#id9">All Changes</a><a class="headerlink" href="#all-changes" title="Permalink to this headline"></a></h3>
|
||
<p>This is a list of all files in the <strong>project space</strong> that received changes;
|
||
many will be simple comments or formatting that have no effect on the runtime:</p>
|
||
<ul class="simple">
|
||
<li><p>app/Config/App.php</p></li>
|
||
<li><p>app/Config/Constants.php</p></li>
|
||
<li><p>app/Config/ContentSecurityPolicy.php</p></li>
|
||
<li><p>app/Config/Database.php</p></li>
|
||
<li><p>app/Config/Events.php</p></li>
|
||
<li><p>app/Config/Feature.php</p></li>
|
||
<li><p>app/Config/Filters.php</p></li>
|
||
<li><p>app/Config/Format.php</p></li>
|
||
<li><p>app/Config/Logger.php</p></li>
|
||
<li><p>app/Config/Mimes.php</p></li>
|
||
<li><p>app/Config/Publisher.php</p></li>
|
||
<li><p>app/Config/Routes.php</p></li>
|
||
<li><p>app/Config/Security.php</p></li>
|
||
<li><p>app/Config/Validation.php</p></li>
|
||
<li><p>app/Config/View.php</p></li>
|
||
<li><p>app/Controllers/BaseController.php</p></li>
|
||
<li><p>app/Views/errors/html/debug.css</p></li>
|
||
<li><p>app/Views/errors/html/debug.js</p></li>
|
||
<li><p>app/Views/errors/html/error_404.php</p></li>
|
||
<li><p>app/Views/errors/html/error_exception.php</p></li>
|
||
<li><p>app/Views/errors/html/production.php</p></li>
|
||
<li><p>app/Views/welcome_message.php</p></li>
|
||
<li><p>app/index.html</p></li>
|
||
<li><p>preload.php</p></li>
|
||
<li><p>public/index.php</p></li>
|
||
<li><p>spark</p></li>
|
||
</ul>
|
||
</section>
|
||
</section>
|
||
</section>
|
||
|
||
|
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<a href="upgrade_418.html" class="btn btn-neutral float-right" title="Upgrading from 4.1.7 to 4.1.8" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right" aria-hidden="true"></span></a>
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<p>© Copyright 2019-2023 CodeIgniter Foundation.
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<span class="lastupdated">Last updated on Oct 22, 2023.
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