diff --git a/src/blackmisc/json.h b/src/blackmisc/json.h
index cfd66d11a..e01934635 100644
--- a/src/blackmisc/json.h
+++ b/src/blackmisc/json.h
@@ -379,7 +379,7 @@ namespace BlackMisc
                     const auto value = json.value(name);
                     if (value.isUndefined())
                     {
-                        constexpr bool required = false; // \todo add RequiredForJson flag in metaclass system
+                        constexpr bool required = false; //! \fixme add RequiredForJson flag in metaclass system
                         if (required) { throw CJsonException(QStringLiteral("Missing required member '%1'").arg(name.m_latin1)); }
                     }
                     else
diff --git a/src/blackmisc/metaclass.h b/src/blackmisc/metaclass.h
index 063409709..6a67737f3 100644
--- a/src/blackmisc/metaclass.h
+++ b/src/blackmisc/metaclass.h
@@ -108,7 +108,7 @@ namespace BlackMisc
         const char *const m_name;
 
         //! Property index of the member.
-        //! \todo Not used yet.
+        //! \deprecated Reserved for future use.
         const int m_index;
 
         //! Any flags applying to the member.
diff --git a/src/blackmisc/simulation/interpolatorlinear.cpp b/src/blackmisc/simulation/interpolatorlinear.cpp
index 610eaa22f..6b7ac12bc 100644
--- a/src/blackmisc/simulation/interpolatorlinear.cpp
+++ b/src/blackmisc/simulation/interpolatorlinear.cpp
@@ -65,7 +65,7 @@ namespace BlackMisc
             CAircraftSituation oldSituation;
             CAircraftSituation newSituation;
             status.setInterpolationSucceeded(true);
-            status.setChangedPosition(true); //! \todo efficiently determine whether the position has changed
+            status.setChangedPosition(true); //! \fixme efficiently determine whether the position has changed
 
             // latest first, now 00:20 split time
             // time     pos