diff --git a/experimental/iterators/include/iterators-c/Dialects.h b/experimental/iterators/include/iterators-c/Dialects.h
index 77ac7d2e22e8..22c88289c7fd 100644
--- a/experimental/iterators/include/iterators-c/Dialects.h
+++ b/experimental/iterators/include/iterators-c/Dialects.h
@@ -10,7 +10,6 @@
 #define ITERATORS_C_DIALECTS_H
 
 #include "mlir-c/IR.h"
-#include "mlir-c/Registration.h"
 #include "mlir-c/Support.h"
 
 #ifdef __cplusplus
diff --git a/experimental/iterators/python/CMakeLists.txt b/experimental/iterators/python/CMakeLists.txt
index cb2b54a61388..2824e33df08f 100644
--- a/experimental/iterators/python/CMakeLists.txt
+++ b/experimental/iterators/python/CMakeLists.txt
@@ -64,11 +64,10 @@ add_mlir_python_common_capi_library(IteratorsPythonCAPI
   RELATIVE_INSTALL_ROOT "../../../.."
   DECLARED_SOURCES
   IteratorsPythonSources
-  MLIRPythonExtension.AllPassesRegistration
+  MLIRPythonExtension.RegisterEverything
   MLIRPythonSources.Core
   MLIRPythonSources.Dialects
   MLIRPythonSources.ExecutionEngine
-  MLIRPythonSources.Passes
 )
 
 # ###############################################################################
@@ -79,11 +78,10 @@ add_mlir_python_modules(IteratorsPythonModules
   INSTALL_PREFIX "python_packages/mlir_iterators"
   DECLARED_SOURCES
   IteratorsPythonSources
-  MLIRPythonExtension.AllPassesRegistration
+  MLIRPythonExtension.RegisterEverything
   MLIRPythonSources.Core
   MLIRPythonSources.Dialects
   MLIRPythonSources.ExecutionEngine
-  MLIRPythonSources.Passes
   COMMON_CAPI_LINK_LIBS
   IteratorsPythonCAPI
 )
diff --git a/experimental/iterators/python/IteratorsDialects.cpp b/experimental/iterators/python/IteratorsDialects.cpp
index ed058bc36811..18feb945d5e8 100644
--- a/experimental/iterators/python/IteratorsDialects.cpp
+++ b/experimental/iterators/python/IteratorsDialects.cpp
@@ -13,7 +13,6 @@
 
 #include "iterators-c/Dialects.h"
 #include "mlir-c/IR.h"
-#include "mlir-c/Registration.h"
 #include "mlir/Bindings/Python/PybindAdaptors.h"
 
 namespace py = pybind11;
diff --git a/python/CMakeLists.txt b/python/CMakeLists.txt
index 3f1850902a31..ab62550ba9da 100644
--- a/python/CMakeLists.txt
+++ b/python/CMakeLists.txt
@@ -54,7 +54,7 @@ add_mlir_python_common_capi_library(SandboxSandboxCAPI
   RELATIVE_INSTALL_ROOT "../../../.."
   DECLARED_SOURCES
     MLIRPythonSources
-    MLIRPythonExtension.AllPassesRegistration
+    MLIRPythonExtension.RegisterEverything
     SandboxSources
 )
 
@@ -69,7 +69,7 @@ add_mlir_python_modules(SandboxSandboxPythonModules
   INSTALL_PREFIX "python_packages/iree_llvm_sandbox/mlir"
   DECLARED_SOURCES
     MLIRPythonSources
-    MLIRPythonExtension.AllPassesRegistration
+    MLIRPythonExtension.RegisterEverything
     SandboxSources
   COMMON_CAPI_LINK_LIBS
     SandboxSandboxCAPI
@@ -103,7 +103,7 @@ add_mlir_python_common_capi_library(IREECAPI
   RELATIVE_INSTALL_ROOT "../../../../.."
   DECLARED_SOURCES
     MLIRPythonSources
-    MLIRPythonExtension.AllPassesRegistration
+    MLIRPythonExtension.RegisterEverything
     ${_addl_sources}
 )
 
@@ -118,7 +118,7 @@ add_mlir_python_modules(IREEPythonModules
   INSTALL_PREFIX "python_packages/iree_llvm_sandboxiree/compiler"
   DECLARED_SOURCES
     MLIRPythonSources
-    MLIRPythonExtension.AllPassesRegistration
+    MLIRPythonExtension.RegisterEverything
     ${_addl_sources}
   COMMON_CAPI_LINK_LIBS
     IREECAPI