diff --git a/gRPC.podspec b/gRPC.podspec
index 9ddbb18d393..19811a01e1f 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -40,7 +40,7 @@ Pod::Spec.new do |s|
   s.module_name = name
   s.header_dir = name
 
-  s.default_subspec = 'Interface', 'GRPCCore'
+  s.default_subspec = 'Interface', 'GRPCCore', 'Interface-Legacy'
 
   s.pod_target_xcconfig = {
     # This is needed by all pods that depend on gRPC-RxLibrary:
@@ -51,9 +51,11 @@ Pod::Spec.new do |s|
   s.subspec 'Interface-Legacy' do |ss|
     ss.header_mappings_dir = 'src/objective-c/GRPCClient'
 
-    ss.public_header_files = "src/objective-c/GRPCClient/GRPCCallLegacy.h"
+    ss.public_header_files = "src/objective-c/GRPCClient/GRPCCallLegacy.h",
+                             "src/objective-c/GRPCClient/GRPCTypes.h"
 
-    ss.source_files = "src/objective-c/GRPCClient/GRPCCallLegacy.h"
+    ss.source_files = "src/objective-c/GRPCClient/GRPCCallLegacy.h",
+                      "src/objective-c/GRPCClient/GRPCTypes.h"
   end
 
   s.subspec 'Interface' do |ss|
@@ -64,8 +66,7 @@ Pod::Spec.new do |s|
                              'src/objective-c/GRPCClient/GRPCCallOptions.h',
                              'src/objective-c/GRPCClient/GRPCInterceptor.h',
                              'src/objective-c/GRPCClient/GRPCTransport.h',
-                             'src/objective-c/GRPCClient/GRPCDispatchable.h',
-                             'src/objective-c/GRPCClient/internal/*.h'
+                             'src/objective-c/GRPCClient/GRPCDispatchable.h'
 
     ss.source_files = 'src/objective-c/GRPCClient/GRPCCall.h',
                       'src/objective-c/GRPCClient/GRPCCall.m',
@@ -112,6 +113,7 @@ Pod::Spec.new do |s|
     # Certificates, to be able to establish TLS connections:
     ss.resource_bundles = { 'gRPCCertificates' => ['etc/roots.pem'] }
 
+    ss.dependency "#{s.name}/Interface-Legacy", version
     ss.dependency "#{s.name}/Interface", version
     ss.dependency 'gRPC-Core', version
     ss.dependency 'gRPC-RxLibrary', version
diff --git a/src/objective-c/GRPCClient/GRPCCallLegacy.h b/src/objective-c/GRPCClient/GRPCCallLegacy.h
index e6103498639..51dd7da3440 100644
--- a/src/objective-c/GRPCClient/GRPCCallLegacy.h
+++ b/src/objective-c/GRPCClient/GRPCCallLegacy.h
@@ -22,7 +22,7 @@
  */
 
 #import <RxLibrary/GRXWriter.h>
-#import "GRPCCallOptions.h"
+#import "GRPCTypes.h"
 
 #pragma clang diagnostic push
 #pragma clang diagnostic ignored "-Wnullability-completeness"
diff --git a/src/objective-c/GRPCClient/GRPCCallOptions.h b/src/objective-c/GRPCClient/GRPCCallOptions.h
index 80c0244d78d..6adc8aa1776 100644
--- a/src/objective-c/GRPCClient/GRPCCallOptions.h
+++ b/src/objective-c/GRPCClient/GRPCCallOptions.h
@@ -18,48 +18,13 @@
 
 #import <Foundation/Foundation.h>
 
+#import "GRPCTypes.h"
+
 NS_ASSUME_NONNULL_BEGIN
 
 typedef char *GRPCTransportId;
 @protocol GRPCInterceptorFactory;
 
-/**
- * Safety remark of a gRPC method as defined in RFC 2616 Section 9.1
- */
-typedef NS_ENUM(NSUInteger, GRPCCallSafety) {
-  /** Signal that there is no guarantees on how the call affects the server state. */
-  GRPCCallSafetyDefault = 0,
-  /** Signal that the call is idempotent. gRPC is free to use PUT verb. */
-  GRPCCallSafetyIdempotentRequest = 1,
-  /**
-   * Signal that the call is cacheable and will not affect server state. gRPC is free to use GET
-   * verb.
-   */
-  GRPCCallSafetyCacheableRequest = 2,
-};
-
-// Compression algorithm to be used by a gRPC call
-typedef NS_ENUM(NSUInteger, GRPCCompressionAlgorithm) {
-  GRPCCompressNone = 0,
-  GRPCCompressDeflate,
-  GRPCCompressGzip,
-  GRPCStreamCompressGzip,
-};
-
-// GRPCCompressAlgorithm is deprecated; use GRPCCompressionAlgorithm
-typedef GRPCCompressionAlgorithm GRPCCompressAlgorithm;
-
-/** The transport to be used by a gRPC call */
-typedef NS_ENUM(NSUInteger, GRPCTransportType) {
-  GRPCTransportTypeDefault = 0,
-  /** gRPC internal HTTP/2 stack with BoringSSL */
-  GRPCTransportTypeChttp2BoringSSL = 0,
-  /** Cronet stack */
-  GRPCTransportTypeCronet,
-  /** Insecure channel. FOR TEST ONLY! */
-  GRPCTransportTypeInsecure,
-};
-
 /**
  * Implement this protocol to provide a token to gRPC when a call is initiated.
  */
diff --git a/src/objective-c/GRPCClient/GRPCTypes.h b/src/objective-c/GRPCClient/GRPCTypes.h
new file mode 100644
index 00000000000..45fbe219a91
--- /dev/null
+++ b/src/objective-c/GRPCClient/GRPCTypes.h
@@ -0,0 +1,37 @@
+/**
+ * Safety remark of a gRPC method as defined in RFC 2616 Section 9.1
+ */
+typedef NS_ENUM(NSUInteger, GRPCCallSafety) {
+  /** Signal that there is no guarantees on how the call affects the server state. */
+  GRPCCallSafetyDefault = 0,
+  /** Signal that the call is idempotent. gRPC is free to use PUT verb. */
+  GRPCCallSafetyIdempotentRequest = 1,
+  /**
+   * Signal that the call is cacheable and will not affect server state. gRPC is free to use GET
+   * verb.
+   */
+  GRPCCallSafetyCacheableRequest = 2,
+};
+
+// Compression algorithm to be used by a gRPC call
+typedef NS_ENUM(NSUInteger, GRPCCompressionAlgorithm) {
+  GRPCCompressNone = 0,
+  GRPCCompressDeflate,
+  GRPCCompressGzip,
+  GRPCStreamCompressGzip,
+};
+
+// GRPCCompressAlgorithm is deprecated; use GRPCCompressionAlgorithm
+typedef GRPCCompressionAlgorithm GRPCCompressAlgorithm;
+
+/** The transport to be used by a gRPC call */
+typedef NS_ENUM(NSUInteger, GRPCTransportType) {
+  GRPCTransportTypeDefault = 0,
+  /** gRPC internal HTTP/2 stack with BoringSSL */
+  GRPCTransportTypeChttp2BoringSSL = 0,
+  /** Cronet stack */
+  GRPCTransportTypeCronet,
+  /** Insecure channel. FOR TEST ONLY! */
+  GRPCTransportTypeInsecure,
+};
+
diff --git a/src/objective-c/tests/InteropTests/InteropTestsMultipleChannels.m b/src/objective-c/tests/InteropTests/InteropTestsMultipleChannels.m
index fef9f2e7ddd..4a3c2b955ac 100644
--- a/src/objective-c/tests/InteropTests/InteropTestsMultipleChannels.m
+++ b/src/objective-c/tests/InteropTests/InteropTestsMultipleChannels.m
@@ -23,6 +23,7 @@
 #import <RemoteTest/Test.pbobjc.h>
 #import <RemoteTest/Test.pbrpc.h>
 #import <RxLibrary/GRXBufferedPipe.h>
+#import <GRPCClient/GRPCCallOptions.h>
 
 #import "../ConfigureCronet.h"
 #import "InteropTestsBlockCallbacks.h"
diff --git a/templates/gRPC.podspec.template b/templates/gRPC.podspec.template
index 21cce3c23ee..78e95abdc9e 100644
--- a/templates/gRPC.podspec.template
+++ b/templates/gRPC.podspec.template
@@ -42,7 +42,7 @@
     s.module_name = name
     s.header_dir = name
 
-    s.default_subspec = 'Interface', 'GRPCCore'
+    s.default_subspec = 'Interface', 'GRPCCore', 'Interface-Legacy'
 
     s.pod_target_xcconfig = {
       # This is needed by all pods that depend on gRPC-RxLibrary:
@@ -53,9 +53,11 @@
     s.subspec 'Interface-Legacy' do |ss|
       ss.header_mappings_dir = 'src/objective-c/GRPCClient'
 
-      ss.public_header_files = "src/objective-c/GRPCClient/GRPCCallLegacy.h"
+      ss.public_header_files = "src/objective-c/GRPCClient/GRPCCallLegacy.h",
+                               "src/objective-c/GRPCClient/GRPCTypes.h"
 
-      ss.source_files = "src/objective-c/GRPCClient/GRPCCallLegacy.h"
+      ss.source_files = "src/objective-c/GRPCClient/GRPCCallLegacy.h",
+                        "src/objective-c/GRPCClient/GRPCTypes.h"
     end
 
     s.subspec 'Interface' do |ss|
@@ -66,8 +68,7 @@
                                'src/objective-c/GRPCClient/GRPCCallOptions.h',
                                'src/objective-c/GRPCClient/GRPCInterceptor.h',
                                'src/objective-c/GRPCClient/GRPCTransport.h',
-                               'src/objective-c/GRPCClient/GRPCDispatchable.h',
-                               'src/objective-c/GRPCClient/internal/*.h'
+                               'src/objective-c/GRPCClient/GRPCDispatchable.h'
 
       ss.source_files = 'src/objective-c/GRPCClient/GRPCCall.h',
                         'src/objective-c/GRPCClient/GRPCCall.m',
@@ -114,6 +115,7 @@
       # Certificates, to be able to establish TLS connections:
       ss.resource_bundles = { 'gRPCCertificates' => ['etc/roots.pem'] }
 
+      ss.dependency "#{s.name}/Interface-Legacy", version
       ss.dependency "#{s.name}/Interface", version
       ss.dependency 'gRPC-Core', version
       ss.dependency 'gRPC-RxLibrary', version