diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 59f515f..3162db3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -62,6 +62,7 @@ jobs:
           diff -B ./PHPCompatibilitySymfonyPolyfillPHP80/ruleset.xml <(xmllint --format "./PHPCompatibilitySymfonyPolyfillPHP80/ruleset.xml")
           diff -B ./PHPCompatibilitySymfonyPolyfillPHP81/ruleset.xml <(xmllint --format "./PHPCompatibilitySymfonyPolyfillPHP81/ruleset.xml")
           diff -B ./PHPCompatibilitySymfonyPolyfillPHP82/ruleset.xml <(xmllint --format "./PHPCompatibilitySymfonyPolyfillPHP82/ruleset.xml")
+          diff -B ./PHPCompatibilitySymfonyPolyfillPHP83/ruleset.xml <(xmllint --format "./PHPCompatibilitySymfonyPolyfillPHP83/ruleset.xml")
 
   test:
     # Don't run the cron job on forks.
@@ -110,13 +111,13 @@ jobs:
           # Remove the PHP 8.x polyfills on PHP < 7 as the minimum requirement is PHP 7.1 and the autoloading
           # of the polyfill bootstrap file via Composer would generate a parse error, blocking the DealerDirect plugin
           # from setting the installed_paths for PHPCS.
-          composer remove --dev symfony/polyfill-php80 symfony/polyfill-php81 symfony/polyfill-php82 --no-update --no-scripts --no-interaction
+          composer remove --dev symfony/polyfill-php80 symfony/polyfill-php81 symfony/polyfill-php82 symfony/polyfill-php83 --no-update --no-scripts --no-interaction
           composer require --no-update symfony/polyfill-php72:"1.19" symfony/polyfill-php73:"1.19" symfony/polyfill-php74:"1.19" --no-interaction
 
       - name: "Conditionally require specific versions of the polyfills (PHP 7.1)"
         if: ${{ matrix.php == '7.1' }}
         run: |
-          composer require --no-update symfony/polyfill-php73:"1.30" symfony/polyfill-php74:"1.30" symfony/polyfill-php80:"1.30" symfony/polyfill-php81:"1.30" symfony/polyfill-php82:"1.30" --no-interaction
+          composer require --no-update symfony/polyfill-php73:"1.30" symfony/polyfill-php74:"1.30" symfony/polyfill-php80:"1.30" symfony/polyfill-php81:"1.30" symfony/polyfill-php82:"1.30" symfony/polyfill-php83:"1.30" --no-interaction
 
       - name: Conditionally update PHPCompatibility to develop version
         if: ${{ matrix.phpcompat != 'stable' }}
@@ -151,6 +152,7 @@ jobs:
           vendor/bin/phpcs -ps ./Test/SymfonyPolyfillPHP80Test.php --standard=PHPCompatibilitySymfonyPolyfillPHP80  --exclude=PHPCompatibility.Upgrade.LowPHP --runtime-set testVersion 7.1-
           vendor/bin/phpcs -ps ./Test/SymfonyPolyfillPHP81Test.php --standard=PHPCompatibilitySymfonyPolyfillPHP81  --exclude=PHPCompatibility.Upgrade.LowPHP --runtime-set testVersion 7.1-
           vendor/bin/phpcs -ps ./Test/SymfonyPolyfillPHP82Test.php --standard=PHPCompatibilitySymfonyPolyfillPHP82 --exclude=PHPCompatibility.Upgrade.LowPHP --runtime-set testVersion 7.1-
+          vendor/bin/phpcs -ps ./Test/SymfonyPolyfillPHP83Test.php --standard=PHPCompatibilitySymfonyPolyfillPHP83 --exclude=PHPCompatibility.Upgrade.LowPHP --runtime-set testVersion 7.1-
 
       # Check that the rulesets don't throw unnecessary errors for the compat libraries themselves.
       # Note: the polyfills for PHP 5.4 - 7.1 have been decoupled from the monorepo at version 1.19.
@@ -182,6 +184,8 @@ jobs:
           vendor/bin/phpcs -ps ./vendor/symfony/polyfill-php80/ --standard=PHPCompatibilitySymfonyPolyfillPHP80 --exclude=PHPCompatibility.Upgrade.LowPHP --runtime-set testVersion 7.1-
           vendor/bin/phpcs -ps ./vendor/symfony/polyfill-php81/ --standard=PHPCompatibilitySymfonyPolyfillPHP81  --exclude=PHPCompatibility.Upgrade.LowPHP --runtime-set testVersion 7.1-
           vendor/bin/phpcs -ps ./vendor/symfony/polyfill-php82/ --standard=PHPCompatibilitySymfonyPolyfillPHP82 --exclude=PHPCompatibility.Upgrade.LowPHP --runtime-set testVersion 7.1-
+          # The PHP 8.3 polyfills at version 1.30 are not tested against PHP 7.1 as they are not in actual fact
+          # compatible with PHP 7.1. This was correctly detected by PHPCompatibility and would cause this test to fail.
 
       # The polyfills for PHP 7.3 and higher are compatible with PHP 7.2+ at the current version.
       - name: "Test running against the polyfills - polyfills 7.3- (current)"
@@ -192,3 +196,4 @@ jobs:
           vendor/bin/phpcs -ps ./vendor/symfony/polyfill-php80/ --standard=PHPCompatibilitySymfonyPolyfillPHP80 --runtime-set testVersion 7.2-
           vendor/bin/phpcs -ps ./vendor/symfony/polyfill-php81/ --standard=PHPCompatibilitySymfonyPolyfillPHP81 --runtime-set testVersion 7.2-
           vendor/bin/phpcs -ps ./vendor/symfony/polyfill-php82/ --standard=PHPCompatibilitySymfonyPolyfillPHP82 --runtime-set testVersion 7.2-
+          vendor/bin/phpcs -ps ./vendor/symfony/polyfill-php83/ --standard=PHPCompatibilitySymfonyPolyfillPHP83 --runtime-set testVersion 7.2-
diff --git a/PHPCompatibilitySymfonyPolyfillPHP83/ruleset.xml b/PHPCompatibilitySymfonyPolyfillPHP83/ruleset.xml
new file mode 100644
index 0000000..3562500
--- /dev/null
+++ b/PHPCompatibilitySymfonyPolyfillPHP83/ruleset.xml
@@ -0,0 +1,98 @@
+<?xml version="1.0"?>
+<ruleset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" name="PHPCompatibilitySymfonyPolyfillPHP83" xsi:noNamespaceSchemaLocation="https://schema.phpcodesniffer.com/phpcs.xsd">
+
+    <description>PHPCompatibility ruleset for PHP_CodeSniffer which accounts for polyfills provided by the Symfony PHP 8.3 library.</description>
+
+    <rule ref="PHPCompatibility">
+        <!-- https://github.com/symfony/polyfill-php83/blob/master/bootstrap.php -->
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.json_validateFound"/>
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.mb_str_padFound"/>
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.stream_context_set_optionsFound"/>
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.str_incrementFound"/>
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.str_decrementFound"/>
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.ldap_exop_syncFound"/>
+        <exclude name="PHPCompatibility.FunctionUse.NewFunctions.ldap_connect_walletFound"/>
+
+        <!-- https://github.com/symfony/polyfill-php83/tree/main/Resources/stubs -->
+        <!--
+        Detection for the Override attributes is incomplete in PHPCompatibility 10.0.0-alpha1.
+        Handling for this should be added once the detection implementation is known.
+        -->
+        <exclude name="PHPCompatibility.Classes.NewClasses.dateerrorFound"/>
+        <exclude name="PHPCompatibility.Classes.NewClasses.dateexceptionFound"/>
+        <exclude name="PHPCompatibility.Classes.NewClasses.dateinvalidoperationexceptionFound"/>
+        <exclude name="PHPCompatibility.Classes.NewClasses.dateinvalidtimezoneexceptionFound"/>
+        <exclude name="PHPCompatibility.Classes.NewClasses.datemalformedintervalstringexceptionFound"/>
+        <exclude name="PHPCompatibility.Classes.NewClasses.datemalformedperiodstringexceptionFound"/>
+        <exclude name="PHPCompatibility.Classes.NewClasses.datemalformedstringexceptionFound"/>
+        <exclude name="PHPCompatibility.Classes.NewClasses.dateobjecterrorFound"/>
+        <exclude name="PHPCompatibility.Classes.NewClasses.daterangeerrorFound"/>
+        <exclude name="PHPCompatibility.Classes.NewClasses.sqlite3exceptionFound"/>
+    </rule>
+
+    <!-- Prevent false positives being thrown when run over the code of polyfill-php83 itself. -->
+    <rule ref="PHPCompatibility.Attributes.NewAttributes.PHPNativeAttributeFound">
+        <exclude-pattern>/polyfill-php83/Resources/stubs/Override\.php$</exclude-pattern>
+    </rule>
+    <rule ref="PHPCompatibility.Classes.NewClasses.attributeFound">
+        <exclude-pattern>/polyfill-php83/Resources/stubs/Override\.php$</exclude-pattern>
+    </rule>
+
+    <rule ref="PHPCompatibility.FunctionUse.OptionalToRequiredFunctionParameters.stream_context_set_option_option_nameSoftRequired">
+        <exclude-pattern>/polyfill-php83/bootstrap\.php$</exclude-pattern>
+    </rule>
+    <rule ref="PHPCompatibility.FunctionUse.OptionalToRequiredFunctionParameters.stream_context_set_option_valueSoftRequired">
+        <exclude-pattern>/polyfill-php83/bootstrap\.php$</exclude-pattern>
+    </rule>
+    <rule ref="PHPCompatibility.FunctionUse.RemovedFunctionParameters.ldap_exop_response_dataDeprecated">
+        <exclude-pattern>/polyfill-php83/bootstrap\.php$</exclude-pattern>
+        <exclude-pattern>/polyfill-php83/bootstrap81\.php$</exclude-pattern>
+    </rule>
+    <rule ref="PHPCompatibility.FunctionUse.RemovedFunctionParameters.ldap_exop_response_oidDeprecated">
+        <exclude-pattern>/polyfill-php83/bootstrap\.php$</exclude-pattern>
+        <exclude-pattern>/polyfill-php83/bootstrap81\.php$</exclude-pattern>
+    </rule>
+    <rule ref="PHPCompatibility.ParameterValues.RemovedLdapConnectSignatures.DeprecatedThreePlusParamSignature">
+        <exclude-pattern>/polyfill-php83/bootstrap\.php$</exclude-pattern>
+        <exclude-pattern>/polyfill-php83/bootstrap81\.php$</exclude-pattern>
+    </rule>
+
+    <!-- These are fine as this file will only be used for PHP 8.1 and 8.2. -->
+    <rule ref="PHPCompatibility.Classes.NewClasses.ldap_connectionFound">
+        <exclude-pattern>/polyfill-php83/bootstrap81\.php$</exclude-pattern>
+    </rule>
+    <rule ref="PHPCompatibility.FunctionUse.NewFunctionParameters.ldap_exop_controlsFound">
+        <exclude-pattern>/polyfill-php83/bootstrap81\.php$</exclude-pattern>
+    </rule>
+    <rule ref="PHPCompatibility.FunctionDeclarations.NewReturnTypeDeclarations.UnionTypeFound">
+        <exclude-pattern>/polyfill-php83/bootstrap81\.php$</exclude-pattern>
+    </rule>
+    <rule ref="PHPCompatibility.FunctionDeclarations.NewReturnTypeDeclarations.falseFound">
+        <exclude-pattern>/polyfill-php83/bootstrap81\.php$</exclude-pattern>
+    </rule>
+    <rule ref="PHPCompatibility.Attributes.NewAttributes.PHPNativeAttributeFound">
+        <exclude-pattern>/polyfill-php83/bootstrap81\.php$</exclude-pattern>
+    </rule>
+    <rule ref="PHPCompatibility.Attributes.NewAttributes.FoundInline">
+        <exclude-pattern>/polyfill-php83/bootstrap81\.php$</exclude-pattern>
+    </rule>
+
+    <!--
+    Not a false positive, but a bug in the Symfony PHP 8.3 polyfill package.
+    Bug has been reported: https://github.com/symfony/polyfill/issues/499#issuecomment-3430297592
+    Temporarily silencing the error as this needs to be solved upstream.
+    -->
+    <rule ref="PHPCompatibility.Classes.NewClasses.valueerrorFound">
+        <exclude-pattern>/polyfill-php83/Php83\.php$</exclude-pattern>
+    </rule>
+
+    <!--
+    Not a false positive, but a bug in the Symfony PHP 8.3 polyfill package.
+    Bug has been reported: https://github.com/symfony/polyfill/issues/550
+    Temporarily silencing the error as this needs to be solved upstream.
+    -->
+    <rule ref="PHPCompatibility.FunctionUse.NewFunctionParameters.ldap_exop_controlsFound">
+        <exclude-pattern>/polyfill-php83/bootstrap\.php$</exclude-pattern>
+    </rule>
+
+</ruleset>
diff --git a/README.md b/README.md
index b07dc17..90340dc 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,7 @@ These rulesets prevent false positives from the [PHPCompatibility standard][PHPC
 | [`polyfill-php80`]       | `PHPCompatibilitySymfonyPolyfillPHP80` |                                                                      |
 | [`polyfill-php81`]       | `PHPCompatibilitySymfonyPolyfillPHP81` |                                                                      |
 | [`polyfill-php82`]       | `PHPCompatibilitySymfonyPolyfillPHP82` |                                                                      |
+| [`polyfill-php83`]       | `PHPCompatibilitySymfonyPolyfillPHP83` |                                                                      |
 
 > [!NOTE]
 > About "Includes":  
@@ -101,6 +102,7 @@ vendor/bin/phpcs -p . --standard=PHPCompatibilitySymfonyPolyfillPHP74
 vendor/bin/phpcs -p . --standard=PHPCompatibilitySymfonyPolyfillPHP80
 vendor/bin/phpcs -p . --standard=PHPCompatibilitySymfonyPolyfillPHP81
 vendor/bin/phpcs -p . --standard=PHPCompatibilitySymfonyPolyfillPHP82
+vendor/bin/phpcs -p . --standard=PHPCompatibilitySymfonyPolyfillPHP83
 
 # You can also combine the standards if your project uses several:
 vendor/bin/phpcs -p . --standard=PHPCompatibilitySymfonyPolyfillPHP55,PHPCompatibilitySymfonyPolyfillPHP70,PHPCompatibilitySymfonyPolyfillPHP73
@@ -156,3 +158,4 @@ All code within the PHPCompatibility organisation is released under the GNU Less
 [`polyfill-php80`]:           https://github.com/symfony/polyfill-php80
 [`polyfill-php81`]:           https://github.com/symfony/polyfill-php81
 [`polyfill-php82`]:           https://github.com/symfony/polyfill-php82
+[`polyfill-php83`]:           https://github.com/symfony/polyfill-php83
diff --git a/Test/SymfonyPolyfillPHP83Test.php b/Test/SymfonyPolyfillPHP83Test.php
new file mode 100644
index 0000000..a071114
--- /dev/null
+++ b/Test/SymfonyPolyfillPHP83Test.php
@@ -0,0 +1,26 @@
+<?php
+/*
+ * Test file to run PHP_CodeSniffer against to make sure the polyfills are correctly excluded.
+ */
+
+json_validate($json, $depth);
+mb_str_pad($string, $length);
+str_increment($string);
+str_decrement($string);
+
+stream_context_set_options($context, $options);
+ldap_exop_sync($ldap, $request_oid);
+ldap_connect_wallet($uri, $wallet, $password);
+
+echo Override::class;
+
+class Foo extends DateError {}
+
+if (is_a($token, DateException::class)) {}
+
+try {
+} catch (DateInvalidOperationException | DateInvalidTimeZoneException $e) {
+} catch (DateMalformedIntervalStringException | DateMalformedPeriodStringException | DateMalformedStringException $e) {
+} catch (DateObjectError | DateRangeError $e) {
+} catch (SQLite3Exception $e) {
+}
diff --git a/composer.json b/composer.json
index 4ebafef..00c87b7 100644
--- a/composer.json
+++ b/composer.json
@@ -40,7 +40,8 @@
     "symfony/polyfill-php74": "1.x-dev",
     "symfony/polyfill-php80": "1.x-dev",
     "symfony/polyfill-php81": "1.x-dev",
-    "symfony/polyfill-php82": "1.x-dev"
+    "symfony/polyfill-php82": "1.x-dev",
+    "symfony/polyfill-php83": "1.x-dev"
   },
   "prefer-stable" : true
 }