diff --git a/driver/cl_options.cpp b/driver/cl_options.cpp
index 2307d9d495..37a4a23250 100644
--- a/driver/cl_options.cpp
+++ b/driver/cl_options.cpp
@@ -454,17 +454,18 @@ cl::opt<unsigned, true> nestedTemplateDepth(
     cl::desc(
         "Set maximum number of nested template instantiations (experimental)"));
 
+// legacy options superseded by `-preview=dip<N>`
 static cl::opt<bool, true>
     useDIP25("dip25", cl::ZeroOrMore, cl::location(global.params.useDIP25),
-             cl::desc("Implement DIP25 (sealed references)"));
-
+             cl::desc("Implement DIP25 (sealed references)"), cl::ReallyHidden);
 static cl::opt<bool, true>
     useDIP1000("dip1000", cl::ZeroOrMore, cl::location(global.params.vsafe),
-               cl::desc("Implement DIP1000 (scoped pointers)"));
-
+               cl::desc("Implement DIP1000 (scoped pointers)"),
+               cl::ReallyHidden);
 static cl::opt<bool, true>
     useDIP1008("dip1008", cl::ZeroOrMore, cl::location(global.params.ehnogc),
-               cl::desc("Implement DIP1008 (@nogc Throwable)"));
+               cl::desc("Implement DIP1008 (@nogc Throwable)"),
+               cl::ReallyHidden);
 
 cl::opt<bool, true> betterC(
     "betterC", cl::ZeroOrMore, cl::location(global.params.betterC),
diff --git a/driver/ldmd.cpp b/driver/ldmd.cpp
index 1d92aa22d9..589928c2b0 100644
--- a/driver/ldmd.cpp
+++ b/driver/ldmd.cpp
@@ -185,9 +185,6 @@ Where:\n\
   -deps=<filename> write module dependencies to filename (only imports)\n\
   -extern-std=<standard>  set C++ name mangling compatibility with <standard>\n\
   -fPIC            generate position independent code\n\
-  -dip25           implement https://github.com/dlang/DIPs/blob/master/DIPs/archive/DIP25.md\n\
-  -dip1000         implement https://github.com/dlang/DIPs/blob/master/DIPs/DIP1000.md\n\
-  -dip1008         implement https://github.com/dlang/DIPs/blob/master/DIPs/DIP1008.md\n\
   -g               add symbolic debug info\n\
   -gf              emit debug info for all referenced types\n\
   -gs              always emit stack frame\n"