diff --git a/sdk/manifest.go b/sdk/manifest.go
index 1e91bfa82..5331badb3 100644
--- a/sdk/manifest.go
+++ b/sdk/manifest.go
@@ -62,7 +62,7 @@ type Manifest struct {
 	EncryptionInformation `json:"encryptionInformation"`
 	Payload               `json:"payload"`
 	Assertions            []Assertion `json:"assertions,omitempty"`
-	TDFVersion            string      `json:"tdf_spec_version,omitempty"`
+	TDFVersion            string      `json:"schemaVersion,omitempty"`
 }
 
 type attributeObject struct {
diff --git a/sdk/tdf.go b/sdk/tdf.go
index db919927e..ffb62bb27 100644
--- a/sdk/tdf.go
+++ b/sdk/tdf.go
@@ -335,10 +335,17 @@ func (s SDK) prepareManifest(ctx context.Context, t *TDFObject, tdfConfig TDFCon
 
 	version, err := semver.NewVersion(sdkVersion)
 	if err != nil {
-		return fmt.Errorf("ReadVersion failed:%w", err)
+		return fmt.Errorf("failed to parse semantic version %q: %w", sdkVersion, err)
 	}
 
-	manifest.TDFVersion = version.String()
+	// Only attempt to set metadata if it's provided
+	if metadata := strings.TrimSpace(tdfConfig.buildMetadata); metadata != "" {
+		versionWithMetadata, err := version.SetMetadata(metadata)
+		if err != nil {
+			return fmt.Errorf("failed to set build metadata %q: %w", metadata, err)
+		}
+		manifest.TDFVersion = versionWithMetadata.String()
+	}
 
 	if len(tdfConfig.splitPlan) == 0 && len(tdfConfig.kasInfoList) == 0 {
 		return fmt.Errorf("%w: no key access template specified or inferred", errInvalidKasInfo)
diff --git a/sdk/tdf_config.go b/sdk/tdf_config.go
index 25f761a85..902ee3774 100644
--- a/sdk/tdf_config.go
+++ b/sdk/tdf_config.go
@@ -56,6 +56,7 @@ type TDFConfig struct {
 	tdfPrivateKey             string
 	metaData                  string
 	mimeType                  string
+	buildMetadata             string
 	integrityAlgorithm        IntegrityAlgorithm
 	segmentIntegrityAlgorithm IntegrityAlgorithm
 	assertions                []AssertionConfig
@@ -172,6 +173,14 @@ func WithMetaData(metaData string) TDFOption {
 	}
 }
 
+// WithBuildMetadata returns an Option that add build metadata to TDF.
+func WithBuildMetadata(buildMetadata string) TDFOption {
+	return func(c *TDFConfig) error {
+		c.buildMetadata = buildMetadata
+		return nil
+	}
+}
+
 func WithMimeType(mimeType string) TDFOption {
 	return func(c *TDFConfig) error {
 		c.mimeType = mimeType
diff --git a/sdk/tdf_test.go b/sdk/tdf_test.go
index fa408c9fd..cadd340a7 100644
--- a/sdk/tdf_test.go
+++ b/sdk/tdf_test.go
@@ -18,6 +18,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/Masterminds/semver/v3"
 	"github.com/lestrrat-go/jwx/v2/jwt"
 	"github.com/opentdf/platform/lib/ocrypto"
 	kaspb "github.com/opentdf/platform/protocol/go/kas"
@@ -259,6 +260,7 @@ func TestTDF(t *testing.T) {
 
 func (s *TDFSuite) Test_SimpleTDF() {
 	metaData := []byte(`{"displayName" : "openTDF go sdk"}`)
+	buildMetadata := "test.01"
 	attributes := []string{
 		"https://example.com/attr/Classification/value/S",
 		"https://example.com/attr/Classification/value/X",
@@ -290,13 +292,14 @@ func (s *TDFSuite) Test_SimpleTDF() {
 			WithKasInformation(kasURLs...),
 			WithMetaData(string(metaData)),
 			WithDataAttributes(attributes...),
+			WithBuildMetadata(buildMetadata),
 		)
 
 		s.Require().NoError(err)
 		s.InDelta(float64(expectedTdfSize), float64(tdfObj.size), 32.0)
 	}
 
-	// test meta data
+	// test meta data and build meta data
 	{
 		readSeeker, err := os.Open(tdfFilename)
 		s.Require().NoError(err)
@@ -323,6 +326,11 @@ func (s *TDFSuite) Test_SimpleTDF() {
 		payloadKey, err := r.UnsafePayloadKeyRetrieval()
 		s.Require().NoError(err)
 		s.Len(payloadKey, kKeySize)
+
+		version, err := semver.NewVersion(r.manifest.TDFVersion)
+		s.Require().NoError(err)
+
+		s.EqualValues(buildMetadata, version.Metadata())
 	}
 
 	// test reader