diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index b2319539..bd95fec4 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -47,7 +47,7 @@ jobs:
           CIBW_ARCHS_LINUX: "auto aarch64"
         run: python -m cibuildwheel
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: ./wheelhouse/*.whl
 
@@ -72,7 +72,7 @@ jobs:
           CIBW_ARCHS_MACOS: "x86_64 arm64"
         run: python -m cibuildwheel
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: ./wheelhouse/*.whl
 
@@ -98,7 +98,7 @@ jobs:
           SCOUT_DISABLE_EXTENSIONS: "1"
         run: python setup.py bdist_wheel
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: dist/*.whl
 
@@ -116,7 +116,7 @@ jobs:
       - name: Build sdist
         run: python setup.py sdist
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: dist/*.tar.gz
 
diff --git a/setup.py b/setup.py
index b649c6fd..fcc86bf5 100644
--- a/setup.py
+++ b/setup.py
@@ -33,7 +33,7 @@
 
 setup(
     name="scout_apm",
-    version="3.3.0",
+    version="3.3.1",
     description="Scout Application Performance Monitoring Agent",
     long_description=long_description,
     long_description_content_type="text/markdown",
diff --git a/tests/unit/core/test_sampler.py b/tests/unit/core/test_sampler.py
index 9d4d0bd3..88475012 100644
--- a/tests/unit/core/test_sampler.py
+++ b/tests/unit/core/test_sampler.py
@@ -168,3 +168,30 @@ def test_prefix_matching_precedence(config):
 
     # VIP users API should always be sampled
     assert sampler.should_sample("Controller/api/users/vip/list", False) is True
+
+
+def test_should_sample_with_legacy_ignore(config):
+    """Test that sampling works correctly when only legacy 'ignore' config is set."""
+    config.set(
+        sample_rate=100,  # Return config to defaults
+        sample_endpoints={},
+        sample_jobs={},
+        ignore_endpoints=[],  # No explicit ignore_endpoints
+        ignore_jobs=[],
+        ignore=["metrics", "health"],  # Only set legacy ignore patterns
+        endpoint_sample_rate=None,
+        job_sample_rate=None,
+    )
+    sampler = Sampler(config)
+
+    # Legacy ignored endpoints should not be sampled
+    assert sampler.should_sample("Controller/metrics/stats", False) is False
+    assert sampler.should_sample("Controller/health/check", False) is False
+
+    # Legacy ignore should be combined with ignore_endpoints
+    assert "metrics" in sampler.ignore_endpoints
+    assert "health" in sampler.ignore_endpoints
+
+    # Non-ignored endpoints and jobs should be sampled
+    assert sampler.should_sample("Controller/users/list", False) is True
+    assert sampler.should_sample("Job/process_data", False) is True