diff --git a/native/exports.go b/native/exports.go
index 1b4603c..2c3f1c7 100644
--- a/native/exports.go
+++ b/native/exports.go
@@ -426,6 +426,7 @@ import (
 	civisibility "github.com/DataDog/dd-trace-go/v2/internal/civisibility/integrations"
 	"github.com/DataDog/dd-trace-go/v2/internal/civisibility/utils"
 	"github.com/DataDog/dd-trace-go/v2/internal/civisibility/utils/net"
+	"github.com/DataDog/dd-trace-go/v2/internal/civisibility/utils/telemetry"
 )
 
 // *******************************************************************************************************************
@@ -1570,25 +1571,38 @@ func topt_test_set_error(test_id C.topt_TestId, error_type *C.char, error_messag
 //export topt_test_set_source
 func topt_test_set_source(test_id C.topt_TestId, file *C.char, start_line *C.int, end_line *C.int) C.Bool {
 	if test, ok := getTest(test_id); ok {
+		var sFile string
+		var iStartline, iEndline int
+
 		if file != nil {
-			gFile := C.GoString(file)
-			gFile = utils.GetRelativePathFromCITagsSourceRoot(gFile)
-			test.SetTag(constants.TestSourceFile, gFile)
+			sFile = C.GoString(file)
+			sFile = utils.GetRelativePathFromCITagsSourceRoot(sFile)
+			test.SetTag(constants.TestSourceFile, sFile)
 
 			// get the codeowner of the function
 			codeOwners := utils.GetCodeOwners()
 			if codeOwners != nil {
-				match, found := codeOwners.Match("/" + gFile)
+				match, found := codeOwners.Match("/" + sFile)
 				if found {
 					test.SetTag(constants.TestCodeOwners, match.GetOwnersString())
 				}
 			}
 		}
 		if start_line != nil {
-			test.SetTag(constants.TestSourceStartLine, int(*start_line))
+			iStartline = int(*start_line)
+			test.SetTag(constants.TestSourceStartLine, iStartline)
 		}
 		if end_line != nil {
-			test.SetTag(constants.TestSourceEndLine, int(*end_line))
+			iEndline = int(*end_line)
+			test.SetTag(constants.TestSourceEndLine, iEndline)
+		}
+		if sFile != "" && iStartline > 0 && iEndline > 0 {
+			if analyzer := civisibility.GetImpactedTestsAnalyzer(); analyzer != nil {
+				if analyzer.IsImpacted(test.Name(), sFile, iStartline, iEndline) {
+					test.SetTag(constants.TestIsModified, "true")
+					telemetry.ImpactedTestsModified()
+				}
+			}
 		}
 		return toBool(true)
 	}
@@ -1663,6 +1677,32 @@ func topt_test_set_benchmark_number_data(test_id C.topt_TestId, measure_type *C.
 	return toBool(false)
 }
 
+// topt_test_log logs a message for a test.
+//
+// Parameters:
+//   - test_id: The ID of the test.
+//   - message: A string message to log.
+//   - tags: Optional string containing tags associated with the log message.
+//
+// Returns:
+//   - C.Bool: True if the message was logged successfully, false if the test was not found or message was nil.
+//
+//export topt_test_log
+func topt_test_log(test_id C.topt_TestId, message *C.char, tags *C.char) C.Bool {
+	if message == nil {
+		return toBool(false)
+	}
+	var sTags string
+	if tags != nil {
+		sTags = C.GoString(tags)
+	}
+	if test, ok := getTest(test_id); ok {
+		test.Log(C.GoString(message), sTags)
+		return toBool(true)
+	}
+	return toBool(false)
+}
+
 // *******************************************************************************************************************
 // Spans
 // *******************************************************************************************************************
diff --git a/sdks/python/test-optimization-sdk/setup.py b/sdks/python/test-optimization-sdk/setup.py
index 4161c4f..4d31f8e 100644
--- a/sdks/python/test-optimization-sdk/setup.py
+++ b/sdks/python/test-optimization-sdk/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name="test-optimization-sdk",
-    version="0.0.2",
+    version="0.0.3",
     description="Datadog's test optimization SDK for Python",
     author="Datadog",
     author_email="info@datadoghq.com",
diff --git a/sdks/python/test-optimization-sdk/src/test_optimization_sdk/__init__.py b/sdks/python/test-optimization-sdk/src/test_optimization_sdk/__init__.py
index af2df23..f5cb8f0 100644
--- a/sdks/python/test-optimization-sdk/src/test_optimization_sdk/__init__.py
+++ b/sdks/python/test-optimization-sdk/src/test_optimization_sdk/__init__.py
@@ -26,7 +26,7 @@
     TEST_OPTIMIZATION_DOWNLOAD_URL_FORMAT,
 )
 
-__version__ = "0.0.1"
+__version__ = "0.0.4"
 
 __all__ = [
     "TestOptimization",
diff --git a/sdks/python/test-optimization-sdk/src/test_optimization_sdk/constants.py b/sdks/python/test-optimization-sdk/src/test_optimization_sdk/constants.py
index fe1f899..2675571 100644
--- a/sdks/python/test-optimization-sdk/src/test_optimization_sdk/constants.py
+++ b/sdks/python/test-optimization-sdk/src/test_optimization_sdk/constants.py
@@ -6,4 +6,4 @@
 TEST_OPTIMIZATION_SDK_SKIP_NATIVE_INSTALL = "TEST_OPTIMIZATION_SDK_SKIP_NATIVE_INSTALL"
 TEST_OPTIMIZATION_SDK_NATIVE_SEARCH_PATH = "TEST_OPTIMIZATION_SDK_NATIVE_SEARCH_PATH"
 TEST_OPTIMIZATION_DEV_MODE = "TEST_OPTIMIZATION_DEV_MODE"
-TEST_OPTIMIZATION_DOWNLOAD_URL_FORMAT = "https://github.com/DataDog/test-optimization-native/releases/download/v0.0.3-preview/"
\ No newline at end of file
+TEST_OPTIMIZATION_DOWNLOAD_URL_FORMAT = "https://github.com/DataDog/test-optimization-native/releases/download/v0.0.4-preview/"
\ No newline at end of file
diff --git a/sdks/python/test-optimization-sdk/src/test_optimization_sdk/lib.py b/sdks/python/test-optimization-sdk/src/test_optimization_sdk/lib.py
index 41c82cc..28ba54e 100644
--- a/sdks/python/test-optimization-sdk/src/test_optimization_sdk/lib.py
+++ b/sdks/python/test-optimization-sdk/src/test_optimization_sdk/lib.py
@@ -257,6 +257,7 @@
     Bool topt_test_close(topt_TestId test_id, topt_TestCloseOptions options);
     Bool topt_test_set_benchmark_string_data(topt_TestId test_id, char* measure_type, topt_KeyValueArray data);
     Bool topt_test_set_benchmark_number_data(topt_TestId test_id, char* measure_type, topt_KeyNumberArray data);
+    Bool topt_test_log(topt_TestId test_id, char* message, char* tags);
 
     topt_SpanResult topt_span_create(topt_TslvId parent_id, topt_SpanStartOptions span_options);
     Bool topt_span_set_string_tag(topt_TslvId span_id, char* key, char* value);
@@ -392,6 +393,7 @@ def _get_library_path() -> str:
     "topt_test_close",
     "topt_test_set_benchmark_string_data",
     "topt_test_set_benchmark_number_data",
+    "topt_test_log",
     "topt_span_create",
     "topt_span_set_string_tag",
     "topt_span_set_number_tag",
diff --git a/sdks/python/test-optimization-sdk/src/test_optimization_sdk/test.py b/sdks/python/test-optimization-sdk/src/test_optimization_sdk/test.py
index 739675a..9b34a33 100644
--- a/sdks/python/test-optimization-sdk/src/test_optimization_sdk/test.py
+++ b/sdks/python/test-optimization-sdk/src/test_optimization_sdk/test.py
@@ -21,6 +21,7 @@
     topt_send_code_coverage_payload,
     topt_test_set_benchmark_number_data,
     topt_test_set_benchmark_string_data,
+    topt_test_log
 )
 from .utils import get_now
 from .base import BaseEntity
@@ -455,4 +456,37 @@ def set_benchmark_number_data(
                 kn_array[0],
             ))
         except Exception as e:
-            raise RuntimeError(f"Failed to set benchmark number data: {e}") 
\ No newline at end of file
+            raise RuntimeError(f"Failed to set benchmark number data: {e}") 
+
+    def log(self, message: str, tags: Optional[str]) -> bool:
+        """Log a message for this test.
+
+        Args:
+            message: Message to log
+            tags: Optional tags to log
+
+        Returns:
+            True if successful, False otherwise
+
+        Raises:
+            RuntimeError: If the test is already closed
+        """
+        if self._closed:
+            raise RuntimeError("Cannot log on closed test")
+
+        try:
+            # Create C strings for the message and tags
+            message_bytes = message.encode()
+            tags_bytes = tags.encode() if tags else None
+
+            message_cstr = self._track_c_string(ffi.new("char[]", message_bytes))
+            tags_cstr = self._track_c_string(ffi.new("char[]", tags_bytes)) if tags else ffi.NULL
+
+            # Log the message
+            return bool(topt_test_log(
+                self.test_id,
+                message_cstr,
+                tags_cstr,
+            ))
+        except Exception as e:
+            raise RuntimeError(f"Failed to log the message: {e}")
diff --git a/sdks/python/test-optimization-sdk/tests/test_complete.py b/sdks/python/test-optimization-sdk/tests/test_complete.py
index 07096b9..5646acd 100644
--- a/sdks/python/test-optimization-sdk/tests/test_complete.py
+++ b/sdks/python/test-optimization-sdk/tests/test_complete.py
@@ -110,6 +110,8 @@ def test_complete():
     pass_test.set_number_tag("Pass-NumberFromPython", 42.0)
     pass_test.set_test_source("test.py", 6, 58)
     pass_test.set_coverage_data(["file.py"])
+    pass_test.log("Hello world", "tag1=value1,tag2=value2")
+    pass_test.log("Hello world", None)
 
     # Set benchmark data for pass test
     measurement_data: Dict[str, float] = {
diff --git a/sdks/rust/test-optimization-sdk/Cargo.toml b/sdks/rust/test-optimization-sdk/Cargo.toml
index c6b4fbd..c11f371 100644
--- a/sdks/rust/test-optimization-sdk/Cargo.toml
+++ b/sdks/rust/test-optimization-sdk/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "test-optimization-sdk"
-version = "0.0.3"
+version = "0.0.4"
 edition = "2021"
 description = "Datadog's test optimization sdk"
 license = "Apache-2.0"
diff --git a/sdks/rust/test-optimization-sdk/build.rs b/sdks/rust/test-optimization-sdk/build.rs
index e8b97ec..0246590 100644
--- a/sdks/rust/test-optimization-sdk/build.rs
+++ b/sdks/rust/test-optimization-sdk/build.rs
@@ -12,7 +12,7 @@ use ureq::AsSendBody;
 const TEST_OPTIMIZATION_SDK_SKIP_NATIVE_INSTALL: &str = "TEST_OPTIMIZATION_SDK_SKIP_NATIVE_INSTALL";
 const TEST_OPTIMIZATION_SDK_NATIVE_SEARCH_PATH: &str = "TEST_OPTIMIZATION_SDK_NATIVE_SEARCH_PATH";
 const TEST_OPTIMIZATION_DEV_MODE: &str = "TEST_OPTIMIZATION_DEV_MODE";
-const TEST_OPTIMIZATION_DOWNLOAD_URL_FORMAT: &str = "https://github.com/DataDog/test-optimization-native/releases/download/v0.0.3-preview/";
+const TEST_OPTIMIZATION_DOWNLOAD_URL_FORMAT: &str = "https://github.com/DataDog/test-optimization-native/releases/download/v0.0.4-preview/";
 
 fn main() {
     let target = env::var("TARGET").expect("Cargo did not provide TARGET");
diff --git a/sdks/rust/test-optimization-sdk/src/test_optimization/lib/bindings.rs b/sdks/rust/test-optimization-sdk/src/test_optimization/lib/bindings.rs
index 83c227f..091ba71 100644
--- a/sdks/rust/test-optimization-sdk/src/test_optimization/lib/bindings.rs
+++ b/sdks/rust/test-optimization-sdk/src/test_optimization/lib/bindings.rs
@@ -307,6 +307,7 @@ unsafe extern "C" {
     pub fn topt_test_set_source(test_id: topt_TestId, file: *mut c_char, start_line: *mut c_int, end_line: *mut c_int) -> Bool;
     pub fn topt_test_set_benchmark_string_data(test_id: topt_TestId, measure_type: *mut c_char, data_array: topt_KeyValueArray) -> Bool;
     pub fn topt_test_set_benchmark_number_data(test_id: topt_TestId, measure_type: *mut c_char, data_array: topt_KeyNumberArray) -> Bool;
+    pub fn topt_test_log(test_id: topt_TestId, message: *mut c_char, tags: *mut c_char) -> Bool;
 
     // Span functions
     pub fn topt_span_create(parent_id: topt_TslvId, span_options: topt_SpanStartOptions) -> topt_SpanResult;
diff --git a/sdks/rust/test-optimization-sdk/src/test_optimization/test.rs b/sdks/rust/test-optimization-sdk/src/test_optimization/test.rs
index 1166015..61a827a 100644
--- a/sdks/rust/test-optimization-sdk/src/test_optimization/test.rs
+++ b/sdks/rust/test-optimization-sdk/src/test_optimization/test.rs
@@ -297,4 +297,20 @@ impl Test {
         unsafe { dealloc(kn_array_ptr as *mut u8, layout); }
         result
     }
+
+    /// Write a log message for this test
+    #[allow(dead_code)]
+    pub fn log(&self, message: impl AsRef<str>, tags: Option<impl AsRef<str>>) -> bool {
+        let message_cstring = CString::new(message.as_ref()).unwrap();
+        let tags_cstring = tags.map(|wd| CString::new(wd.as_ref()).unwrap());
+        unsafe {
+            Bool_to_bool(topt_test_log(
+                self.test_id,
+                message_cstring.as_ptr() as *mut c_char,
+                tags_cstring
+                    .as_ref()
+                    .map_or(null_mut(), |s| s.as_ptr() as *mut c_char),
+            ))
+        }
+    }
 }
diff --git a/sdks/rust/test-optimization-sdk/src/tests.rs b/sdks/rust/test-optimization-sdk/src/tests.rs
index cdbd295..f8b4673 100644
--- a/sdks/rust/test-optimization-sdk/src/tests.rs
+++ b/sdks/rust/test-optimization-sdk/src/tests.rs
@@ -73,6 +73,8 @@ fn complete() {
     pass_test.set_number_tag("Pass-NumberFromRust", 42f64);
     pass_test.set_test_source("test.rs", &6, &58);
     pass_test.set_coverage_data(&["file.rs"]);
+    pass_test.log("Hello world", Some("tag1=value1,tag2=value2"));
+    pass_test.log("Hello world", None::<&str>);
 
     let mut measurement_data: HashMap<&str, f64> = HashMap::new();
     measurement_data.insert("data1", 42f64);