core: add NS_DEPRECATED_3_48

Author: TommyPec

doc/doxygen.conf

@@ -2303,6 +2303,7 @@ EXPAND_AS_DEFINED      = ATTRIBUTE_ACCESSOR_DEFINE \
                          ATTRIBUTE_VALUE_IMPLEMENT_WITH_NAME \
                          NS_UNUSED_GLOBAL \
                          NS_DEPRECATED \
+                         NS_DEPRECATED_3_48 \
                          NS_DEPRECATED_3_47 \
                          NS_DEPRECATED_3_46 \
                          NS_DEPRECATED_3_45 \

src/core/model/deprecated.h

@@ -83,6 +83,13 @@
  */
 #define NS_DEPRECATED(msg) /** \deprecated msg */ [[deprecated(msg)]]
 
+/**
+ * @ingroup deprecation
+ * @def NS_DEPRECATED_3_48
+ * Tag for things deprecated in version ns-3.48.
+ */
+#define NS_DEPRECATED_3_48(msg) NS_DEPRECATED("Deprecated in ns-3.48: " msg)
+
 /**
  * @ingroup deprecation
  * @def NS_DEPRECATED_3_47