diff --git a/include/fluidsynth/event.h b/include/fluidsynth/event.h
index dde0bb23..374bdb53 100644
--- a/include/fluidsynth/event.h
+++ b/include/fluidsynth/event.h
@@ -59,7 +59,9 @@ enum fluid_seq_event_type {
   FLUID_SEQ_KEYPRESSURE,        /**< Polyphonic aftertouch event @since 2.0.0 */
   FLUID_SEQ_SYSTEMRESET,        /**< System reset event @since 1.1.0 */
   FLUID_SEQ_UNREGISTERING,      /**< Called when a sequencer client is being unregistered. @since 1.1.0 */
-  FLUID_SEQ_LASTEVENT		/**< Defines the count of event enums @deprecated As of 1.1.7 this enum value is deprecated and will be removed in a future release, because it prevents adding new enum values without breaking ABI compatibility. */
+#ifndef __DOXYGEN__
+  FLUID_SEQ_LASTEVENT		/**< @internal Defines the count of events enums @warning This symbol is not part of the public API and ABI stability guarantee and may change at any time! */
+#endif
 };
 
 /* Event alloc/free */
diff --git a/include/fluidsynth/gen.h b/include/fluidsynth/gen.h
index fa25414d..d4700073 100644
--- a/include/fluidsynth/gen.h
+++ b/include/fluidsynth/gen.h
@@ -99,7 +99,9 @@ enum fluid_gen_type {
    * is used, however, as the destination for the default pitch wheel
    * modulator. */
   GEN_PITCH,			/**< Pitch @note Not a real SoundFont generator */
-  GEN_LAST			/**< Value defines the count of generators (#fluid_gen_type) @deprecated As of 1.1.7 this enum value is deprecated and will be removed in a future release, because it prevents adding new enum values without breaking ABI compatibility. */
+#ifndef __DOXYGEN__
+  GEN_LAST			/**< @internal Value defines the count of generators (#fluid_gen_type) @warning This symbol is not part of the public API and ABI stability guarantee and may change at any time! */
+#endif
 };
 
 
diff --git a/include/fluidsynth/log.h b/include/fluidsynth/log.h
index cd9f4041..61bbef21 100644
--- a/include/fluidsynth/log.h
+++ b/include/fluidsynth/log.h
@@ -58,7 +58,9 @@ enum fluid_log_level {
   FLUID_WARN,    /**< Warning */
   FLUID_INFO,    /**< Verbose informational messages */
   FLUID_DBG,     /**< Debugging messages */
-  LAST_LOG_LEVEL /**< @deprecated As of 1.1.7 this enum value is deprecated and will be removed in a future release, because it prevents adding new enum values without breaking ABI compatibility. */
+#ifndef __DOXYGEN__
+  LAST_LOG_LEVEL /**< @warning This symbol is not part of the public API and ABI stability guarantee and may change at any time! */
+#endif
 };
 
 /**
diff --git a/include/fluidsynth/midi.h b/include/fluidsynth/midi.h
index 03a34776..9be82128 100644
--- a/include/fluidsynth/midi.h
+++ b/include/fluidsynth/midi.h
@@ -64,7 +64,9 @@ typedef enum
   FLUID_MIDI_ROUTER_RULE_PITCH_BEND,            /**< MIDI pitch bend rule */
   FLUID_MIDI_ROUTER_RULE_CHANNEL_PRESSURE,      /**< MIDI channel pressure rule */
   FLUID_MIDI_ROUTER_RULE_KEY_PRESSURE,          /**< MIDI key pressure rule */
-  FLUID_MIDI_ROUTER_RULE_COUNT                  /**< Total count of rule types */
+#ifndef __DOXYGEN__
+  FLUID_MIDI_ROUTER_RULE_COUNT                  /**< @internal Total count of rule types @warning This symbol is not part of the public API and ABI stability guarantee and may change at any time!*/
+#endif
 } fluid_midi_router_rule_type;
 
 /**