Forgot to update the \since value
diff --git a/qt5/src/poppler-form.h b/qt5/src/poppler-form.h
index 401d79c..7996a2c 100644
--- a/qt5/src/poppler-form.h
+++ b/qt5/src/poppler-form.h
@@ -350,7 +350,7 @@
/**
A signature validation info helper class.
- \since xy.z
+ \since 0.51
*/
class SignatureValidationInfoPrivate;
class POPPLER_QT5_EXPORT SignatureValidationInfo {
@@ -419,7 +419,7 @@
/**
A form field that represents a signature.
- \since xy.z
+ \since 0.51
*/
class POPPLER_QT5_EXPORT FormFieldSignature : public FormField {
public:
