diff --git a/.github/workflows/dependabot-auto-merge.yml b/.github/workflows/dependabot-auto-merge.yml
index 5d73740..82070d2 100644
--- a/.github/workflows/dependabot-auto-merge.yml
+++ b/.github/workflows/dependabot-auto-merge.yml
@@ -13,7 +13,7 @@ jobs:
 
       - name: Dependabot metadata
         id: metadata
-        uses: dependabot/fetch-metadata@v1.6.0
+        uses: dependabot/fetch-metadata@v2.4.0
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
 
diff --git a/.github/workflows/fix-php-code-style-issues.yml b/.github/workflows/fix-php-code-style-issues.yml
index 802d168..af3491c 100644
--- a/.github/workflows/fix-php-code-style-issues.yml
+++ b/.github/workflows/fix-php-code-style-issues.yml
@@ -21,6 +21,6 @@ jobs:
           args: --config=.php-cs-fixer.dist.php --allow-risky=yes
 
       - name: Commit changes
-        uses: stefanzweifel/git-auto-commit-action@v5
+        uses: stefanzweifel/git-auto-commit-action@v6
         with:
           commit_message: Fix styling
diff --git a/.github/workflows/run-phpunit.yml b/.github/workflows/run-phpunit.yml
index a35cd53..d75dee5 100644
--- a/.github/workflows/run-phpunit.yml
+++ b/.github/workflows/run-phpunit.yml
@@ -39,7 +39,7 @@ jobs:
           XDEBUG_MODE: coverage
 
       - name: Upload to Codecov
-        uses: codecov/codecov-action@v2
+        uses: codecov/codecov-action@v5
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: ./build/coverage.xml
diff --git a/.github/workflows/update-changelog.yml b/.github/workflows/update-changelog.yml
index ec40921..859924d 100644
--- a/.github/workflows/update-changelog.yml
+++ b/.github/workflows/update-changelog.yml
@@ -24,7 +24,7 @@ jobs:
           release-notes: ${{ github.event.release.body }}
 
       - name: Commit updated CHANGELOG
-        uses: stefanzweifel/git-auto-commit-action@v5
+        uses: stefanzweifel/git-auto-commit-action@v6
         with:
           branch: main
           commit_message: Update CHANGELOG
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 33b9965..b36a0ad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,15 @@
 
 All notable changes to `cva` will be documented in this file.
 
+## 0.3.0 - 2024-09-25
+
+### What's Changed
+
+* Improve code coverage by @rojtjo in https://github.com/feature-ninja/cva/pull/10
+* Allow passing additional class names by @rojtjo in https://github.com/feature-ninja/cva/pull/11
+
+**Full Changelog**: https://github.com/feature-ninja/cva/compare/0.2.1...0.3.0
+
 ## 0.2.1 - 2024-09-10
 
 ### What's Changed
diff --git a/README.md b/README.md
index 97a0e22..2c7bdf0 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,35 @@ $button = ClassVarianceAuthority::new(
         ],
     ],
 );
+
+# Or by using the cva helper function
+
+$button = fn\cva(
+    ['font-semibold', 'border', 'rounded'],
+    [
+        'variants' => [
+            'intent' => [
+                'primary' => ['bg-blue-500', 'text-white', 'border-transparent', 'hover:bg-blue-600'],
+                'secondary' => 'bg-white text-gray-800 border-gray-400 hover:bg-gray-100',
+            ],
+            'size' => [
+                'small' => ['text-sm', 'py-1', 'px-2'],
+                'medium' => 'text-base py-2 px-4',
+            ],
+        ],
+        'compoundVariants' => [
+            [
+                'intent' => 'primary',
+                'size' => 'medium',
+                'class' => 'uppercase',
+            ],
+        ],
+        'defaultVariants' => [
+            'intent' => 'primary',
+            'size' => 'medium',
+        ],
+    ],
+);
 ```
 
 ```html
diff --git a/src/StringCollection.php b/src/StringCollection.php
index 0afd781..409c557 100644
--- a/src/StringCollection.php
+++ b/src/StringCollection.php
@@ -19,7 +19,7 @@ public function implode(string $separator): string
         return implode($separator, $this->items);
     }
 
-    public function filter(callable $callback = null): self
+    public function filter(?callable $callback = null): self
     {
         return new self(array_filter($this->items, $callback));
     }