diff --git a/.github/workflows/coding-standards.yml b/.github/workflows/coding-standards.yml
index 249a050542..9a66c44db2 100644
--- a/.github/workflows/coding-standards.yml
+++ b/.github/workflows/coding-standards.yml
@@ -25,4 +25,4 @@ on:
 jobs:
   coding-standards:
     name: "Coding Standards"
-    uses: "doctrine/.github/.github/workflows/coding-standards.yml@3.1.0"
+    uses: "doctrine/.github/.github/workflows/coding-standards.yml@4.0.0"
diff --git a/.github/workflows/continuous-integration.yml b/.github/workflows/continuous-integration.yml
index 286c1385e2..1cfda1b111 100644
--- a/.github/workflows/continuous-integration.yml
+++ b/.github/workflows/continuous-integration.yml
@@ -87,9 +87,9 @@ jobs:
         run: "vendor/bin/phpunit -c ci/github/phpunit/${{ matrix.extension }}.xml --coverage-clover=coverage.xml"
 
       - name: "Upload coverage file"
-        uses: "actions/upload-artifact@v3"
+        uses: "actions/upload-artifact@v4"
         with:
-          name: "phpunit-${{ matrix.extension }}-${{ matrix.deps }}-${{ matrix.php-version }}.coverage"
+          name: "phpunit-${{ matrix.extension }}-${{ matrix.dependencies }}-${{ matrix.php-version }}.coverage"
           path: "coverage.xml"
 
   phpunit-oci8:
@@ -144,9 +144,9 @@ jobs:
         run: "vendor/bin/phpunit -c ci/github/phpunit/oci8${{ matrix.oracle-version < 23 && '-21' || ''  }}.xml --coverage-clover=coverage.xml"
 
       - name: "Upload coverage file"
-        uses: "actions/upload-artifact@v3"
+        uses: "actions/upload-artifact@v4"
         with:
-          name: "${{ github.job }}-${{ matrix.php-version }}.coverage"
+          name: "${{ github.job }}-${{ matrix.php-version }}-${{ matrix.oracle-version }}.coverage"
           path: "coverage.xml"
 
   phpunit-pdo-oci:
@@ -201,9 +201,9 @@ jobs:
         run: "vendor/bin/phpunit -c ci/github/phpunit/pdo_oci${{ matrix.oracle-version < 23 && '-21' || ''  }}.xml --coverage-clover=coverage.xml"
 
       - name: "Upload coverage file"
-        uses: "actions/upload-artifact@v3"
+        uses: "actions/upload-artifact@v4"
         with:
-          name: "${{ github.job }}-${{ matrix.php-version }}.coverage"
+          name: "${{ github.job }}-${{ matrix.php-version }}-${{ matrix.oracle-version }}.coverage"
           path: "coverage.xml"
 
   phpunit-postgres:
@@ -265,7 +265,7 @@ jobs:
         run: "vendor/bin/phpunit -c ci/github/phpunit/${{ matrix.extension }}.xml --coverage-clover=coverage.xml"
 
       - name: "Upload coverage file"
-        uses: "actions/upload-artifact@v3"
+        uses: "actions/upload-artifact@v4"
         with:
           name: "${{ github.job }}-${{ matrix.postgres-version }}-${{ matrix.extension }}-${{ matrix.php-version }}.coverage"
           path: "coverage.xml"
@@ -334,7 +334,7 @@ jobs:
         run: "vendor/bin/phpunit -c ci/github/phpunit/${{ matrix.extension }}.xml --coverage-clover=coverage.xml"
 
       - name: "Upload coverage file"
-        uses: "actions/upload-artifact@v3"
+        uses: "actions/upload-artifact@v4"
         with:
           name: "${{ github.job }}-${{ matrix.mariadb-version }}-${{ matrix.extension }}-${{ matrix.php-version }}.coverage"
           path: "coverage.xml"
@@ -409,7 +409,7 @@ jobs:
         run: "vendor/bin/phpunit -c ci/github/phpunit/${{ matrix.extension }}${{ matrix.config-file-suffix }}.xml --coverage-clover=coverage.xml"
 
       - name: "Upload coverage file"
-        uses: "actions/upload-artifact@v3"
+        uses: "actions/upload-artifact@v4"
         with:
           name: "${{ github.job }}-${{ matrix.mysql-version }}-${{ matrix.extension }}-${{ matrix.config-file-suffix }}-${{ matrix.php-version }}.coverage"
           path: "coverage.xml"
@@ -476,7 +476,7 @@ jobs:
         run: "vendor/bin/phpunit -c ci/github/phpunit/${{ matrix.extension }}.xml --coverage-clover=coverage.xml"
 
       - name: "Upload coverage file"
-        uses: "actions/upload-artifact@v3"
+        uses: "actions/upload-artifact@v4"
         with:
           name: "${{ github.job }}-${{ matrix.extension }}-${{ matrix.php-version }}-${{ matrix.collation }}.coverage"
           path: "coverage.xml"
@@ -547,7 +547,7 @@ jobs:
         run: "vendor/bin/phpunit -c ci/github/phpunit/ibm_db2.xml --coverage-clover=coverage.xml"
 
       - name: "Upload coverage file"
-        uses: "actions/upload-artifact@v3"
+        uses: "actions/upload-artifact@v4"
         with:
           name: "${{ github.job }}-${{ matrix.php-version }}.coverage"
           path: "coverage.xml"
@@ -601,7 +601,7 @@ jobs:
           fetch-depth: 2
 
       - name: "Download coverage files"
-        uses: "actions/download-artifact@v3"
+        uses: "actions/download-artifact@v4"
         with:
           path: "reports"
 
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index 4223053ca4..08a8852775 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -7,7 +7,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v6
+      - uses: actions/stale@v9
         with:
           stale-pr-message: >
             There hasn't been any activity on this pull request in the past 90 days, so
diff --git a/.github/workflows/static-analysis.yml b/.github/workflows/static-analysis.yml
index 9b1999f3f8..ce807684af 100644
--- a/.github/workflows/static-analysis.yml
+++ b/.github/workflows/static-analysis.yml
@@ -34,7 +34,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "8.2"
+          - "8.3"
 
     steps:
       - name: "Checkout code"
@@ -60,7 +60,7 @@ jobs:
     strategy:
       matrix:
         php-version:
-          - "8.2"
+          - "8.3"
 
     steps:
       - name: Checkout code
diff --git a/src/Platforms/AbstractPlatform.php b/src/Platforms/AbstractPlatform.php
index 3959e2fa29..0beb37a093 100644
--- a/src/Platforms/AbstractPlatform.php
+++ b/src/Platforms/AbstractPlatform.php
@@ -131,6 +131,7 @@ private function initializeAllDoctrineTypeMappings(): void
 
         foreach (Type::getTypesMap() as $typeName => $className) {
             foreach (Type::getType($typeName)->getMappedDatabaseTypes($this) as $dbType) {
+                $dbType                             = strtolower($dbType);
                 $this->doctrineTypeMapping[$dbType] = $typeName;
             }
         }
diff --git a/tests/Platforms/AbstractPlatformTestCase.php b/tests/Platforms/AbstractPlatformTestCase.php
index 4687394934..54f5022b2d 100644
--- a/tests/Platforms/AbstractPlatformTestCase.php
+++ b/tests/Platforms/AbstractPlatformTestCase.php
@@ -85,6 +85,40 @@ public function testRegisterDoctrineMappingType(): void
         self::assertEquals(Types::INTEGER, $this->platform->getDoctrineTypeMapping('foo'));
     }
 
+    public function testCaseInsensitiveDoctrineTypeMappingFromType(): void
+    {
+        $type = new class () extends Type {
+            /**
+             * {@inheritDoc}
+             */
+            public function getMappedDatabaseTypes(AbstractPlatform $platform): array
+            {
+                return ['TESTTYPE'];
+            }
+
+            public function getName(): string
+            {
+                return 'testtype';
+            }
+
+            /**
+             * {@inheritDoc}
+             */
+            public function getSQLDeclaration(array $column, AbstractPlatform $platform): string
+            {
+                return $platform->getDecimalTypeDeclarationSQL($column);
+            }
+        };
+
+        if (Type::hasType($type->getName())) {
+            Type::overrideType($type->getName(), $type::class);
+        } else {
+            Type::addType($type->getName(), $type::class);
+        }
+
+        self::assertSame($type->getName(), $this->platform->getDoctrineTypeMapping('TeStTyPe'));
+    }
+
     public function testRegisterUnknownDoctrineMappingType(): void
     {
         $this->expectException(Exception::class);