diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7421037..88685e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# v1.2.0
+* Use middleware instead of listener
+* Require doctrine/dbal >= 3.2
+* Require symfony >= 6.x
+
 # v1.1.0
 * Drop compatibility workaround for PostgreSQL 10 on PHP 5.x
 * Require doctrine/dbal >= 2.7 (for proper upstream PostgreSQL >= 10 support)
diff --git a/README.md b/README.md
index 085067e..baa3eaa 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,3 @@
-NOTE: [older versions](https://github.com/WhereGroup/doctrine-dbal-shims/tree/v1.0.1) contained compatibility workarounds for
-PostgreSQL >= 10 on unmaintained DBAL (<=2.6.x). This support has been removed. Only the Oracle
-session init logic remains.
-
 ## Oracle session variable preinitialization
 Included is an event subscriber that automatically sets Oracle session variables required by DBAL and Doctrine ORM to
 work properly (date formats etc).
diff --git a/composer.json b/composer.json
index 3baf8ee..69eadcf 100644
--- a/composer.json
+++ b/composer.json
@@ -4,8 +4,8 @@
   "type": "library",
   "license": "MIT",
   "require": {
-    "php": ">=5.5",
-    "doctrine/dbal": "^2.7 || ^3"
+    "php": ">=8.1",
+    "doctrine/dbal": "^3.2"
   },
   "autoload": {
     "psr-4": { "Wheregroup\\DoctrineDbalShims\\": "lib" }
diff --git a/lib/DependencyInjection/Compiler/AddOracleSesssionInitPass.php b/lib/DependencyInjection/Compiler/AddOracleSessionInitPass.php
similarity index 86%
rename from lib/DependencyInjection/Compiler/AddOracleSesssionInitPass.php
rename to lib/DependencyInjection/Compiler/AddOracleSessionInitPass.php
index a820bcc..b1d9b52 100644
--- a/lib/DependencyInjection/Compiler/AddOracleSesssionInitPass.php
+++ b/lib/DependencyInjection/Compiler/AddOracleSessionInitPass.php
@@ -9,29 +9,27 @@
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Loader\XmlFileLoader;
 
-class AddOracleSesssionInitPass extends ShimPass
+class AddOracleSessionInitPass extends ShimPass
 {
-    /** @var FileLocator */
-    protected $fileLocator;
+    protected FileLocator $fileLocator;
 
     public function __construct()
     {
         $this->fileLocator = new FileLocator(realpath(__DIR__ . '/../../Resources/config'));
     }
 
-    public static function isShimRequired(ContainerBuilder $container)
+    public static function isShimRequired(ContainerBuilder $container): bool
     {
-        // Can't hurt
         return true;
     }
 
-    public function process(ContainerBuilder $container)
+    public function process(ContainerBuilder $container): void
     {
         $loader = new XmlFileLoader($container, $this->fileLocator);
         $loader->import('oracle-listener-init-session-vars.xml');
     }
 
-    public static function register(ContainerBuilder $container)
+    public static function register(ContainerBuilder $container): void
     {
         /**
          * Register for execution BEFORE doctrine event listeners are collected and
diff --git a/lib/DependencyInjection/Compiler/PassIndex.php b/lib/DependencyInjection/Compiler/PassIndex.php
index 369a8ab..addc97f 100644
--- a/lib/DependencyInjection/Compiler/PassIndex.php
+++ b/lib/DependencyInjection/Compiler/PassIndex.php
@@ -18,7 +18,7 @@ class PassIndex
     public static function getAllPasses()
     {
         return array(
-            new AddOracleSesssionInitPass(),
+            new AddOracleSessionInitPass(),
         );
     }
 
diff --git a/lib/DependencyInjection/Compiler/ShimPass.php b/lib/DependencyInjection/Compiler/ShimPass.php
index c28635c..c7df049 100644
--- a/lib/DependencyInjection/Compiler/ShimPass.php
+++ b/lib/DependencyInjection/Compiler/ShimPass.php
@@ -4,15 +4,17 @@
 namespace Wheregroup\DoctrineDbalShims\DependencyInjection\Compiler;
 
 
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 
-abstract class ShimPass implements ShimPassInterface
+abstract class ShimPass implements CompilerPassInterface
 {
+    public abstract static function isShimRequired(ContainerBuilder $container): bool;
+
     /**
      * Registers the compiler pass (invariantly) to the container builder.
-     * @param ContainerBuilder $container
      */
-    public static function register(ContainerBuilder $container)
+    public static function register(ContainerBuilder $container): void
     {
         $container->addCompilerPass(new static());
     }
@@ -20,10 +22,8 @@ public static function register(ContainerBuilder $container)
     /**
      * Registers the compiler pass to the container builder ONLY IF it
      * is required / applicable to current DBAL setup.
-     *
-     * @param ContainerBuilder $container
      */
-    public static function autoRegister(ContainerBuilder $container)
+    public static function autoRegister(ContainerBuilder $container): void
     {
         if (static::isShimRequired($container)) {
             static::register($container);
@@ -35,12 +35,8 @@ public static function autoRegister(ContainerBuilder $container)
      * before a certain other pass (by class name).
      * Performs no action unless a compiler pass of given $className was already
      * added to the builder.
-     *
-     * @param ContainerBuilder $container
-     * @param string $className
-     * @return bool if pass was injected
      */
-    protected static function registerBefore(ContainerBuilder $container, $className)
+    protected static function registerBefore(ContainerBuilder $container, string $className): bool
     {
         $passConfig = $container->getCompilerPassConfig();
         $searchPasses = $passConfig->getBeforeOptimizationPasses();
diff --git a/lib/DependencyInjection/Compiler/ShimPassInterface.php b/lib/DependencyInjection/Compiler/ShimPassInterface.php
deleted file mode 100644
index 4bab7e4..0000000
--- a/lib/DependencyInjection/Compiler/ShimPassInterface.php
+++ /dev/null
@@ -1,30 +0,0 @@
-<?php
-
-
-namespace Wheregroup\DoctrineDbalShims\DependencyInjection\Compiler;
-
-
-use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
-use Symfony\Component\DependencyInjection\ContainerBuilder;
-
-/**
- * Static methods required on ShimPass.
- * PHP < 7 does not agree with the utility of abstract static methods, but allows them
- * in interfaces.
- *
- * @internal
- */
-interface ShimPassInterface extends CompilerPassInterface
-{
-    /**
-     * @param ContainerBuilder $container
-     * @return boolean
-     */
-    public static function isShimRequired(ContainerBuilder $container);
-
-    /**
-     * @param ContainerBuilder $container
-     * @return void
-     */
-    public static function register(ContainerBuilder $container);
-}
diff --git a/lib/Event/Listeners/OnDemandOracleSessionInit.php b/lib/Event/Listeners/OnDemandOracleSessionInit.php
index 18c381f..90226f0 100644
--- a/lib/Event/Listeners/OnDemandOracleSessionInit.php
+++ b/lib/Event/Listeners/OnDemandOracleSessionInit.php
@@ -4,9 +4,10 @@
 namespace Wheregroup\DoctrineDbalShims\Event\Listeners;
 
 
+use Doctrine\DBAL\Driver;
 use Doctrine\DBAL\Driver\AbstractOracleDriver;
-use Doctrine\DBAL\Event\ConnectionEventArgs;
-use Doctrine\DBAL\Event\Listeners\OracleSessionInit;
+use Doctrine\DBAL\Driver\OCI8\Middleware\InitializeSession;
+use Doctrine\DBAL\Platforms\OraclePlatform;
 
 /**
  * Ensures DBAL-required session variables (like date format) are set on
@@ -15,12 +16,15 @@
  * multiple connections to different database servers, without the need to
  * preconfigure the listener to only process certain connections by name.
  */
-class OnDemandOracleSessionInit extends OracleSessionInit
+class OnDemandOracleSessionInit extends InitializeSession
 {
-    public function postConnect(ConnectionEventArgs $args)
+    public function wrap(Driver $driver): Driver
     {
-        if ($args->getConnection()->getDriver() instanceof AbstractOracleDriver) {
-            parent::postConnect($args);
+        $platform = $driver->getDatabasePlatform();
+        if ($platform instanceof OraclePlatform) {
+            return parent::wrap($driver);
         }
+
+        return $driver;
     }
 }
diff --git a/lib/Resources/config/oracle-listener-init-session-vars.xml b/lib/Resources/config/oracle-listener-init-session-vars.xml
index acac800..824bedb 100644
--- a/lib/Resources/config/oracle-listener-init-session-vars.xml
+++ b/lib/Resources/config/oracle-listener-init-session-vars.xml
@@ -4,7 +4,7 @@
            xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
     <services>
             <service id="dbal.listener.oracle.init_session_vars" class="Wheregroup\DoctrineDbalShims\Event\Listeners\OnDemandOracleSessionInit">
-                <tag name="doctrine.event_subscriber" />
+                <tag name="doctrine.middleware" />
             </service>
     </services>
 </container>