diff --git a/include/armadillo_bits/compiler_setup.hpp b/include/armadillo_bits/compiler_setup.hpp
index 8e17425f..805a6f2d 100644
--- a/include/armadillo_bits/compiler_setup.hpp
+++ b/include/armadillo_bits/compiler_setup.hpp
@@ -162,10 +162,6 @@
     #error "*** newer compiler required; need at least gcc 8.1 ***"
   #endif
   
-  #if (__GNUC__ >= 17)
-    #undef ARMA_IGNORE_DEPRECATED_MARKER
-  #endif
-  
   #define ARMA_GOOD_COMPILER
   
   #undef  arma_hot
@@ -223,12 +219,6 @@
   
   // #pragma message ("using Clang extensions")
   
-  #if defined(__clang_major__) && !defined(__apple_build_version__)
-    #if (__clang_major__ >= 24)
-      #undef ARMA_IGNORE_DEPRECATED_MARKER
-    #endif
-  #endif
-  
   #define ARMA_GOOD_COMPILER
   
   #if !defined(__has_attribute)
@@ -474,15 +464,3 @@
 // https://sourceware.org/bugzilla/show_bug.cgi?id=19239
 #undef minor
 #undef major
-
-
-// WARNING: option 'ARMA_IGNORE_DEPRECATED_MARKER' is not supported when compiling with gcc 17+ or clang 24+
-// WARNING: disabling deprecation messages is counter-productive
-
-#if defined(ARMA_IGNORE_DEPRECATED_MARKER)
-  #undef  arma_deprecated
-  #define arma_deprecated
-
-  #undef  arma_frown
-  #define arma_frown(msg)
-#endif
diff --git a/include/armadillo_bits/config.hpp b/include/armadillo_bits/config.hpp
index f39aee53..926c7757 100644
--- a/include/armadillo_bits/config.hpp
+++ b/include/armadillo_bits/config.hpp
@@ -348,10 +348,6 @@
   #undef ARMA_CHECK_NONFINITE
 #endif
 
-#if defined(ARMA_DONT_IGNORE_DEPRECATED_MARKER)
-  #undef ARMA_IGNORE_DEPRECATED_MARKER
-#endif
-
 #if defined(ARMA_NO_DEBUG)
   #undef ARMA_DEBUG
   #undef ARMA_EXTRA_DEBUG
@@ -369,8 +365,6 @@
   
   #undef  ARMA_WARN_LEVEL
   #define ARMA_WARN_LEVEL 3
-  
-  #undef  ARMA_IGNORE_DEPRECATED_MARKER
 #endif
 
 #if defined(ARMA_DONT_PRINT_EXCEPTIONS)
@@ -381,13 +375,10 @@
   #undef ARMA_CRIPPLED_LAPACK
 #endif
 
-// WARNING: option ARMA_IGNORE_DEPRECATED_MARKER will be removed
-// WARNING: option ARMA_CRIPPLED_LAPACK          will be removed
+// WARNING: option ARMA_CRIPPLED_LAPACK will be removed
 
 #if defined(ARMA_CRIPPLED_LAPACK)
-  #if (!defined(ARMA_IGNORE_DEPRECATED_MARKER))
-    #pragma message ("option ARMA_CRIPPLED_LAPACK is deprecated and will be removed")
-  #endif
+  #pragma message ("option ARMA_CRIPPLED_LAPACK is deprecated and will be removed")
 #endif
 
 
diff --git a/include/armadillo_bits/config.hpp.cmake b/include/armadillo_bits/config.hpp.cmake
index 7ff5bcb7..d8bd5371 100644
--- a/include/armadillo_bits/config.hpp.cmake
+++ b/include/armadillo_bits/config.hpp.cmake
@@ -348,10 +348,6 @@
   #undef ARMA_CHECK_NONFINITE
 #endif
 
-#if defined(ARMA_DONT_IGNORE_DEPRECATED_MARKER)
-  #undef ARMA_IGNORE_DEPRECATED_MARKER
-#endif
-
 #if defined(ARMA_NO_DEBUG)
   #undef ARMA_DEBUG
   #undef ARMA_EXTRA_DEBUG
@@ -369,8 +365,6 @@
   
   #undef  ARMA_WARN_LEVEL
   #define ARMA_WARN_LEVEL 3
-  
-  #undef  ARMA_IGNORE_DEPRECATED_MARKER
 #endif
 
 #if defined(ARMA_DONT_PRINT_EXCEPTIONS)
@@ -381,13 +375,10 @@
   #undef ARMA_CRIPPLED_LAPACK
 #endif
 
-// WARNING: option ARMA_IGNORE_DEPRECATED_MARKER will be removed
-// WARNING: option ARMA_CRIPPLED_LAPACK          will be removed
+// WARNING: option ARMA_CRIPPLED_LAPACK will be removed
 
 #if defined(ARMA_CRIPPLED_LAPACK)
-  #if (!defined(ARMA_IGNORE_DEPRECATED_MARKER))
-    #pragma message ("option ARMA_CRIPPLED_LAPACK is deprecated and will be removed")
-  #endif
+  #pragma message ("option ARMA_CRIPPLED_LAPACK is deprecated and will be removed")
 #endif