diff --git a/examples/csharp/helloworld/README.md b/examples/csharp/helloworld/README.md
index 63131ed98c0004ff464c36e91a1549318890e557..d13c9ac9db418377c6822054a16ab6f6e94b6c71 100644
--- a/examples/csharp/helloworld/README.md
+++ b/examples/csharp/helloworld/README.md
@@ -5,23 +5,16 @@ BACKGROUND
 -------------
 For this sample, we've already generated the server and client stubs from [helloworld.proto][].
 
-Example projects depend on the [Grpc](https://www.nuget.org/packages/Grpc/)
+Example projects depend on the [Grpc](https://www.nuget.org/packages/Grpc/), [Grpc.Tools](https://www.nuget.org/packages/Grpc.Tools/)
 and [Google.Protobuf](https://www.nuget.org/packages/Google.Protobuf/) NuGet packages
 which have been already added to the project for you.
 
 PREREQUISITES
 -------------
-**Windows**
-- .NET 4.5+
-- Visual Studio 2013 or 2015
 
-**Linux**
-- Mono 4.0+
-- Monodevelop 5.9+ (with NuGet plugin installed)
-
-**Mac OS X**
-- Xamarin Studio 5.9+
-- [homebrew][]
+- Windows: .NET Framework 4.5+, Visual Studio 2013 or 2015
+- Linux: Mono 4+, MonoDevelop 5.9+ (with NuGet add-in installed)
+- Mac OS X: Xamarin Studio 5.9+
 
 BUILD
 -------
@@ -56,6 +49,5 @@ Tutorial
 
 You can find a more detailed tutorial in [gRPC Basics: C#][]
 
-[homebrew]:http://brew.sh
 [helloworld.proto]:../../protos/helloworld.proto
 [gRPC Basics: C#]:http://www.grpc.io/docs/tutorials/basic/csharp.html
diff --git a/gRPC.podspec b/gRPC.podspec
index e5556cc5448f9be2f2145131b414433a1616e6a7..fd58bd6281f0e60fb050ae01f7e9b14b36d72528 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -43,26 +43,703 @@ Pod::Spec.new do |s|
   s.license  = 'New BSD'
   s.authors  = { 'The gRPC contributors' => 'grpc-packages@google.com' }
 
-  s.source = {
-    :git => 'https://github.com/grpc/grpc.git',
-    :tag => "release-#{version.gsub(/\./, '_')}-objectivec-#{version}",
-  }
+  s.source = { :git => 'https://github.com/grpc/grpc.git',
+               :tag => "release-#{version.gsub(/\./, '_')}-objectivec-#{version}",
+               :submodules => true }
+
 
   s.ios.deployment_target = '7.1'
   s.osx.deployment_target = '10.9'
+  s.requires_arc = true
+
+  objc_dir = 'src/objective-c'
+
+  # Reactive Extensions library for iOS.
+  s.subspec 'RxLibrary' do |ss|
+    src_dir = "#{objc_dir}/RxLibrary"
+    ss.source_files = "#{src_dir}/*.{h,m}", "#{src_dir}/**/*.{h,m}"
+    ss.private_header_files = "#{src_dir}/private/*.h"
+    ss.header_mappings_dir = "#{objc_dir}"
+  end
+
+  # Core cross-platform gRPC library, written in C.
+  s.subspec 'C-Core' do |ss|
+    ss.source_files = 'src/core/lib/profiling/timers.h',
+                      'src/core/lib/support/backoff.h',
+                      'src/core/lib/support/block_annotate.h',
+                      'src/core/lib/support/env.h',
+                      'src/core/lib/support/murmur_hash.h',
+                      'src/core/lib/support/stack_lockfree.h',
+                      'src/core/lib/support/string.h',
+                      'src/core/lib/support/string_windows.h',
+                      'src/core/lib/support/thd_internal.h',
+                      'src/core/lib/support/time_precise.h',
+                      'src/core/lib/support/tmpfile.h',
+                      'include/grpc/support/alloc.h',
+                      'include/grpc/support/atm.h',
+                      'include/grpc/support/atm_gcc_atomic.h',
+                      'include/grpc/support/atm_gcc_sync.h',
+                      'include/grpc/support/atm_windows.h',
+                      'include/grpc/support/avl.h',
+                      'include/grpc/support/cmdline.h',
+                      'include/grpc/support/cpu.h',
+                      'include/grpc/support/histogram.h',
+                      'include/grpc/support/host_port.h',
+                      'include/grpc/support/log.h',
+                      'include/grpc/support/log_windows.h',
+                      'include/grpc/support/port_platform.h',
+                      'include/grpc/support/slice.h',
+                      'include/grpc/support/slice_buffer.h',
+                      'include/grpc/support/string_util.h',
+                      'include/grpc/support/subprocess.h',
+                      'include/grpc/support/sync.h',
+                      'include/grpc/support/sync_generic.h',
+                      'include/grpc/support/sync_posix.h',
+                      'include/grpc/support/sync_windows.h',
+                      'include/grpc/support/thd.h',
+                      'include/grpc/support/time.h',
+                      'include/grpc/support/tls.h',
+                      'include/grpc/support/tls_gcc.h',
+                      'include/grpc/support/tls_msvc.h',
+                      'include/grpc/support/tls_pthread.h',
+                      'include/grpc/support/useful.h',
+                      'include/grpc/impl/codegen/alloc.h',
+                      'include/grpc/impl/codegen/atm.h',
+                      'include/grpc/impl/codegen/atm_gcc_atomic.h',
+                      'include/grpc/impl/codegen/atm_gcc_sync.h',
+                      'include/grpc/impl/codegen/atm_windows.h',
+                      'include/grpc/impl/codegen/log.h',
+                      'include/grpc/impl/codegen/port_platform.h',
+                      'include/grpc/impl/codegen/slice.h',
+                      'include/grpc/impl/codegen/slice_buffer.h',
+                      'include/grpc/impl/codegen/sync.h',
+                      'include/grpc/impl/codegen/sync_generic.h',
+                      'include/grpc/impl/codegen/sync_posix.h',
+                      'include/grpc/impl/codegen/sync_windows.h',
+                      'include/grpc/impl/codegen/time.h',
+                      'src/core/lib/profiling/basic_timers.c',
+                      'src/core/lib/profiling/stap_timers.c',
+                      'src/core/lib/support/alloc.c',
+                      'src/core/lib/support/avl.c',
+                      'src/core/lib/support/backoff.c',
+                      'src/core/lib/support/cmdline.c',
+                      'src/core/lib/support/cpu_iphone.c',
+                      'src/core/lib/support/cpu_linux.c',
+                      'src/core/lib/support/cpu_posix.c',
+                      'src/core/lib/support/cpu_windows.c',
+                      'src/core/lib/support/env_linux.c',
+                      'src/core/lib/support/env_posix.c',
+                      'src/core/lib/support/env_windows.c',
+                      'src/core/lib/support/histogram.c',
+                      'src/core/lib/support/host_port.c',
+                      'src/core/lib/support/log.c',
+                      'src/core/lib/support/log_android.c',
+                      'src/core/lib/support/log_linux.c',
+                      'src/core/lib/support/log_posix.c',
+                      'src/core/lib/support/log_windows.c',
+                      'src/core/lib/support/murmur_hash.c',
+                      'src/core/lib/support/slice.c',
+                      'src/core/lib/support/slice_buffer.c',
+                      'src/core/lib/support/stack_lockfree.c',
+                      'src/core/lib/support/string.c',
+                      'src/core/lib/support/string_posix.c',
+                      'src/core/lib/support/string_util_windows.c',
+                      'src/core/lib/support/string_windows.c',
+                      'src/core/lib/support/subprocess_posix.c',
+                      'src/core/lib/support/subprocess_windows.c',
+                      'src/core/lib/support/sync.c',
+                      'src/core/lib/support/sync_posix.c',
+                      'src/core/lib/support/sync_windows.c',
+                      'src/core/lib/support/thd.c',
+                      'src/core/lib/support/thd_posix.c',
+                      'src/core/lib/support/thd_windows.c',
+                      'src/core/lib/support/time.c',
+                      'src/core/lib/support/time_posix.c',
+                      'src/core/lib/support/time_precise.c',
+                      'src/core/lib/support/time_windows.c',
+                      'src/core/lib/support/tls_pthread.c',
+                      'src/core/lib/support/tmpfile_msys.c',
+                      'src/core/lib/support/tmpfile_posix.c',
+                      'src/core/lib/support/tmpfile_windows.c',
+                      'src/core/lib/support/wrap_memcpy.c',
+                      'src/core/lib/channel/channel_args.h',
+                      'src/core/lib/channel/channel_stack.h',
+                      'src/core/lib/channel/channel_stack_builder.h',
+                      'src/core/lib/channel/compress_filter.h',
+                      'src/core/lib/channel/connected_channel.h',
+                      'src/core/lib/channel/context.h',
+                      'src/core/lib/channel/http_client_filter.h',
+                      'src/core/lib/channel/http_server_filter.h',
+                      'src/core/lib/compression/algorithm_metadata.h',
+                      'src/core/lib/compression/message_compress.h',
+                      'src/core/lib/debug/trace.h',
+                      'src/core/lib/http/format_request.h',
+                      'src/core/lib/http/httpcli.h',
+                      'src/core/lib/http/parser.h',
+                      'src/core/lib/iomgr/closure.h',
+                      'src/core/lib/iomgr/endpoint.h',
+                      'src/core/lib/iomgr/endpoint_pair.h',
+                      'src/core/lib/iomgr/error.h',
+                      'src/core/lib/iomgr/ev_epoll_linux.h',
+                      'src/core/lib/iomgr/ev_poll_and_epoll_posix.h',
+                      'src/core/lib/iomgr/ev_poll_posix.h',
+                      'src/core/lib/iomgr/ev_posix.h',
+                      'src/core/lib/iomgr/exec_ctx.h',
+                      'src/core/lib/iomgr/executor.h',
+                      'src/core/lib/iomgr/iocp_windows.h',
+                      'src/core/lib/iomgr/iomgr.h',
+                      'src/core/lib/iomgr/iomgr_internal.h',
+                      'src/core/lib/iomgr/iomgr_posix.h',
+                      'src/core/lib/iomgr/load_file.h',
+                      'src/core/lib/iomgr/network_status_tracker.h',
+                      'src/core/lib/iomgr/polling_entity.h',
+                      'src/core/lib/iomgr/pollset.h',
+                      'src/core/lib/iomgr/pollset_set.h',
+                      'src/core/lib/iomgr/pollset_set_windows.h',
+                      'src/core/lib/iomgr/pollset_windows.h',
+                      'src/core/lib/iomgr/resolve_address.h',
+                      'src/core/lib/iomgr/sockaddr.h',
+                      'src/core/lib/iomgr/sockaddr_posix.h',
+                      'src/core/lib/iomgr/sockaddr_utils.h',
+                      'src/core/lib/iomgr/sockaddr_windows.h',
+                      'src/core/lib/iomgr/socket_utils_posix.h',
+                      'src/core/lib/iomgr/socket_windows.h',
+                      'src/core/lib/iomgr/tcp_client.h',
+                      'src/core/lib/iomgr/tcp_posix.h',
+                      'src/core/lib/iomgr/tcp_server.h',
+                      'src/core/lib/iomgr/tcp_windows.h',
+                      'src/core/lib/iomgr/time_averaged_stats.h',
+                      'src/core/lib/iomgr/timer.h',
+                      'src/core/lib/iomgr/timer_heap.h',
+                      'src/core/lib/iomgr/udp_server.h',
+                      'src/core/lib/iomgr/unix_sockets_posix.h',
+                      'src/core/lib/iomgr/wakeup_fd_pipe.h',
+                      'src/core/lib/iomgr/wakeup_fd_posix.h',
+                      'src/core/lib/iomgr/workqueue.h',
+                      'src/core/lib/iomgr/workqueue_posix.h',
+                      'src/core/lib/iomgr/workqueue_windows.h',
+                      'src/core/lib/json/json.h',
+                      'src/core/lib/json/json_common.h',
+                      'src/core/lib/json/json_reader.h',
+                      'src/core/lib/json/json_writer.h',
+                      'src/core/lib/surface/api_trace.h',
+                      'src/core/lib/surface/call.h',
+                      'src/core/lib/surface/call_test_only.h',
+                      'src/core/lib/surface/channel.h',
+                      'src/core/lib/surface/channel_init.h',
+                      'src/core/lib/surface/channel_stack_type.h',
+                      'src/core/lib/surface/completion_queue.h',
+                      'src/core/lib/surface/event_string.h',
+                      'src/core/lib/surface/init.h',
+                      'src/core/lib/surface/lame_client.h',
+                      'src/core/lib/surface/server.h',
+                      'src/core/lib/transport/byte_stream.h',
+                      'src/core/lib/transport/connectivity_state.h',
+                      'src/core/lib/transport/metadata.h',
+                      'src/core/lib/transport/metadata_batch.h',
+                      'src/core/lib/transport/static_metadata.h',
+                      'src/core/lib/transport/transport.h',
+                      'src/core/lib/transport/transport_impl.h',
+                      'src/core/ext/transport/chttp2/transport/bin_decoder.h',
+                      'src/core/ext/transport/chttp2/transport/bin_encoder.h',
+                      'src/core/ext/transport/chttp2/transport/chttp2_transport.h',
+                      'src/core/ext/transport/chttp2/transport/frame.h',
+                      'src/core/ext/transport/chttp2/transport/frame_data.h',
+                      'src/core/ext/transport/chttp2/transport/frame_goaway.h',
+                      'src/core/ext/transport/chttp2/transport/frame_ping.h',
+                      'src/core/ext/transport/chttp2/transport/frame_rst_stream.h',
+                      'src/core/ext/transport/chttp2/transport/frame_settings.h',
+                      'src/core/ext/transport/chttp2/transport/frame_window_update.h',
+                      'src/core/ext/transport/chttp2/transport/hpack_encoder.h',
+                      'src/core/ext/transport/chttp2/transport/hpack_parser.h',
+                      'src/core/ext/transport/chttp2/transport/hpack_table.h',
+                      'src/core/ext/transport/chttp2/transport/http2_errors.h',
+                      'src/core/ext/transport/chttp2/transport/huffsyms.h',
+                      'src/core/ext/transport/chttp2/transport/incoming_metadata.h',
+                      'src/core/ext/transport/chttp2/transport/internal.h',
+                      'src/core/ext/transport/chttp2/transport/status_conversion.h',
+                      'src/core/ext/transport/chttp2/transport/stream_map.h',
+                      'src/core/ext/transport/chttp2/transport/timeout_encoding.h',
+                      'src/core/ext/transport/chttp2/transport/varint.h',
+                      'src/core/ext/transport/chttp2/alpn/alpn.h',
+                      'src/core/lib/security/context/security_context.h',
+                      'src/core/lib/security/credentials/composite/composite_credentials.h',
+                      'src/core/lib/security/credentials/credentials.h',
+                      'src/core/lib/security/credentials/fake/fake_credentials.h',
+                      'src/core/lib/security/credentials/google_default/google_default_credentials.h',
+                      'src/core/lib/security/credentials/iam/iam_credentials.h',
+                      'src/core/lib/security/credentials/jwt/json_token.h',
+                      'src/core/lib/security/credentials/jwt/jwt_credentials.h',
+                      'src/core/lib/security/credentials/jwt/jwt_verifier.h',
+                      'src/core/lib/security/credentials/oauth2/oauth2_credentials.h',
+                      'src/core/lib/security/credentials/plugin/plugin_credentials.h',
+                      'src/core/lib/security/credentials/ssl/ssl_credentials.h',
+                      'src/core/lib/security/transport/auth_filters.h',
+                      'src/core/lib/security/transport/handshake.h',
+                      'src/core/lib/security/transport/secure_endpoint.h',
+                      'src/core/lib/security/transport/security_connector.h',
+                      'src/core/lib/security/transport/tsi_error.h',
+                      'src/core/lib/security/util/b64.h',
+                      'src/core/lib/security/util/json_util.h',
+                      'src/core/lib/tsi/fake_transport_security.h',
+                      'src/core/lib/tsi/ssl_transport_security.h',
+                      'src/core/lib/tsi/ssl_types.h',
+                      'src/core/lib/tsi/transport_security.h',
+                      'src/core/lib/tsi/transport_security_interface.h',
+                      'src/core/ext/client_config/client_channel.h',
+                      'src/core/ext/client_config/client_channel_factory.h',
+                      'src/core/ext/client_config/client_config.h',
+                      'src/core/ext/client_config/connector.h',
+                      'src/core/ext/client_config/initial_connect_string.h',
+                      'src/core/ext/client_config/lb_policy.h',
+                      'src/core/ext/client_config/lb_policy_factory.h',
+                      'src/core/ext/client_config/lb_policy_registry.h',
+                      'src/core/ext/client_config/parse_address.h',
+                      'src/core/ext/client_config/resolver.h',
+                      'src/core/ext/client_config/resolver_factory.h',
+                      'src/core/ext/client_config/resolver_registry.h',
+                      'src/core/ext/client_config/subchannel.h',
+                      'src/core/ext/client_config/subchannel_call_holder.h',
+                      'src/core/ext/client_config/subchannel_index.h',
+                      'src/core/ext/client_config/uri_parser.h',
+                      'src/core/ext/lb_policy/grpclb/load_balancer_api.h',
+                      'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
+                      'third_party/nanopb/pb.h',
+                      'third_party/nanopb/pb_common.h',
+                      'third_party/nanopb/pb_decode.h',
+                      'third_party/nanopb/pb_encode.h',
+                      'src/core/ext/load_reporting/load_reporting.h',
+                      'src/core/ext/load_reporting/load_reporting_filter.h',
+                      'src/core/ext/census/aggregation.h',
+                      'src/core/ext/census/census_interface.h',
+                      'src/core/ext/census/census_rpc_stats.h',
+                      'src/core/ext/census/gen/census.pb.h',
+                      'src/core/ext/census/grpc_filter.h',
+                      'src/core/ext/census/mlog.h',
+                      'src/core/ext/census/rpc_metric_id.h',
+                      'include/grpc/byte_buffer.h',
+                      'include/grpc/byte_buffer_reader.h',
+                      'include/grpc/compression.h',
+                      'include/grpc/grpc.h',
+                      'include/grpc/grpc_posix.h',
+                      'include/grpc/status.h',
+                      'include/grpc/impl/codegen/byte_buffer.h',
+                      'include/grpc/impl/codegen/byte_buffer_reader.h',
+                      'include/grpc/impl/codegen/compression_types.h',
+                      'include/grpc/impl/codegen/connectivity_state.h',
+                      'include/grpc/impl/codegen/grpc_types.h',
+                      'include/grpc/impl/codegen/propagation_bits.h',
+                      'include/grpc/impl/codegen/status.h',
+                      'include/grpc/impl/codegen/alloc.h',
+                      'include/grpc/impl/codegen/atm.h',
+                      'include/grpc/impl/codegen/atm_gcc_atomic.h',
+                      'include/grpc/impl/codegen/atm_gcc_sync.h',
+                      'include/grpc/impl/codegen/atm_windows.h',
+                      'include/grpc/impl/codegen/log.h',
+                      'include/grpc/impl/codegen/port_platform.h',
+                      'include/grpc/impl/codegen/slice.h',
+                      'include/grpc/impl/codegen/slice_buffer.h',
+                      'include/grpc/impl/codegen/sync.h',
+                      'include/grpc/impl/codegen/sync_generic.h',
+                      'include/grpc/impl/codegen/sync_posix.h',
+                      'include/grpc/impl/codegen/sync_windows.h',
+                      'include/grpc/impl/codegen/time.h',
+                      'include/grpc/grpc_security.h',
+                      'include/grpc/grpc_security_constants.h',
+                      'include/grpc/census.h',
+                      'src/core/lib/surface/init.c',
+                      'src/core/lib/channel/channel_args.c',
+                      'src/core/lib/channel/channel_stack.c',
+                      'src/core/lib/channel/channel_stack_builder.c',
+                      'src/core/lib/channel/compress_filter.c',
+                      'src/core/lib/channel/connected_channel.c',
+                      'src/core/lib/channel/http_client_filter.c',
+                      'src/core/lib/channel/http_server_filter.c',
+                      'src/core/lib/compression/compression.c',
+                      'src/core/lib/compression/message_compress.c',
+                      'src/core/lib/debug/trace.c',
+                      'src/core/lib/http/format_request.c',
+                      'src/core/lib/http/httpcli.c',
+                      'src/core/lib/http/parser.c',
+                      'src/core/lib/iomgr/closure.c',
+                      'src/core/lib/iomgr/endpoint.c',
+                      'src/core/lib/iomgr/endpoint_pair_posix.c',
+                      'src/core/lib/iomgr/endpoint_pair_windows.c',
+                      'src/core/lib/iomgr/error.c',
+                      'src/core/lib/iomgr/ev_epoll_linux.c',
+                      'src/core/lib/iomgr/ev_poll_and_epoll_posix.c',
+                      'src/core/lib/iomgr/ev_poll_posix.c',
+                      'src/core/lib/iomgr/ev_posix.c',
+                      'src/core/lib/iomgr/exec_ctx.c',
+                      'src/core/lib/iomgr/executor.c',
+                      'src/core/lib/iomgr/iocp_windows.c',
+                      'src/core/lib/iomgr/iomgr.c',
+                      'src/core/lib/iomgr/iomgr_posix.c',
+                      'src/core/lib/iomgr/iomgr_windows.c',
+                      'src/core/lib/iomgr/load_file.c',
+                      'src/core/lib/iomgr/network_status_tracker.c',
+                      'src/core/lib/iomgr/polling_entity.c',
+                      'src/core/lib/iomgr/pollset_set_windows.c',
+                      'src/core/lib/iomgr/pollset_windows.c',
+                      'src/core/lib/iomgr/resolve_address_posix.c',
+                      'src/core/lib/iomgr/resolve_address_windows.c',
+                      'src/core/lib/iomgr/sockaddr_utils.c',
+                      'src/core/lib/iomgr/socket_utils_common_posix.c',
+                      'src/core/lib/iomgr/socket_utils_linux.c',
+                      'src/core/lib/iomgr/socket_utils_posix.c',
+                      'src/core/lib/iomgr/socket_windows.c',
+                      'src/core/lib/iomgr/tcp_client_posix.c',
+                      'src/core/lib/iomgr/tcp_client_windows.c',
+                      'src/core/lib/iomgr/tcp_posix.c',
+                      'src/core/lib/iomgr/tcp_server_posix.c',
+                      'src/core/lib/iomgr/tcp_server_windows.c',
+                      'src/core/lib/iomgr/tcp_windows.c',
+                      'src/core/lib/iomgr/time_averaged_stats.c',
+                      'src/core/lib/iomgr/timer.c',
+                      'src/core/lib/iomgr/timer_heap.c',
+                      'src/core/lib/iomgr/udp_server.c',
+                      'src/core/lib/iomgr/unix_sockets_posix.c',
+                      'src/core/lib/iomgr/unix_sockets_posix_noop.c',
+                      'src/core/lib/iomgr/wakeup_fd_eventfd.c',
+                      'src/core/lib/iomgr/wakeup_fd_nospecial.c',
+                      'src/core/lib/iomgr/wakeup_fd_pipe.c',
+                      'src/core/lib/iomgr/wakeup_fd_posix.c',
+                      'src/core/lib/iomgr/workqueue_posix.c',
+                      'src/core/lib/iomgr/workqueue_windows.c',
+                      'src/core/lib/json/json.c',
+                      'src/core/lib/json/json_reader.c',
+                      'src/core/lib/json/json_string.c',
+                      'src/core/lib/json/json_writer.c',
+                      'src/core/lib/surface/alarm.c',
+                      'src/core/lib/surface/api_trace.c',
+                      'src/core/lib/surface/byte_buffer.c',
+                      'src/core/lib/surface/byte_buffer_reader.c',
+                      'src/core/lib/surface/call.c',
+                      'src/core/lib/surface/call_details.c',
+                      'src/core/lib/surface/call_log_batch.c',
+                      'src/core/lib/surface/channel.c',
+                      'src/core/lib/surface/channel_init.c',
+                      'src/core/lib/surface/channel_ping.c',
+                      'src/core/lib/surface/channel_stack_type.c',
+                      'src/core/lib/surface/completion_queue.c',
+                      'src/core/lib/surface/event_string.c',
+                      'src/core/lib/surface/lame_client.c',
+                      'src/core/lib/surface/metadata_array.c',
+                      'src/core/lib/surface/server.c',
+                      'src/core/lib/surface/validate_metadata.c',
+                      'src/core/lib/surface/version.c',
+                      'src/core/lib/transport/byte_stream.c',
+                      'src/core/lib/transport/connectivity_state.c',
+                      'src/core/lib/transport/metadata.c',
+                      'src/core/lib/transport/metadata_batch.c',
+                      'src/core/lib/transport/static_metadata.c',
+                      'src/core/lib/transport/transport.c',
+                      'src/core/lib/transport/transport_op_string.c',
+                      'src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.c',
+                      'src/core/ext/transport/chttp2/transport/bin_decoder.c',
+                      'src/core/ext/transport/chttp2/transport/bin_encoder.c',
+                      'src/core/ext/transport/chttp2/transport/chttp2_plugin.c',
+                      'src/core/ext/transport/chttp2/transport/chttp2_transport.c',
+                      'src/core/ext/transport/chttp2/transport/frame_data.c',
+                      'src/core/ext/transport/chttp2/transport/frame_goaway.c',
+                      'src/core/ext/transport/chttp2/transport/frame_ping.c',
+                      'src/core/ext/transport/chttp2/transport/frame_rst_stream.c',
+                      'src/core/ext/transport/chttp2/transport/frame_settings.c',
+                      'src/core/ext/transport/chttp2/transport/frame_window_update.c',
+                      'src/core/ext/transport/chttp2/transport/hpack_encoder.c',
+                      'src/core/ext/transport/chttp2/transport/hpack_parser.c',
+                      'src/core/ext/transport/chttp2/transport/hpack_table.c',
+                      'src/core/ext/transport/chttp2/transport/huffsyms.c',
+                      'src/core/ext/transport/chttp2/transport/incoming_metadata.c',
+                      'src/core/ext/transport/chttp2/transport/parsing.c',
+                      'src/core/ext/transport/chttp2/transport/status_conversion.c',
+                      'src/core/ext/transport/chttp2/transport/stream_lists.c',
+                      'src/core/ext/transport/chttp2/transport/stream_map.c',
+                      'src/core/ext/transport/chttp2/transport/timeout_encoding.c',
+                      'src/core/ext/transport/chttp2/transport/varint.c',
+                      'src/core/ext/transport/chttp2/transport/writing.c',
+                      'src/core/ext/transport/chttp2/alpn/alpn.c',
+                      'src/core/lib/http/httpcli_security_connector.c',
+                      'src/core/lib/security/context/security_context.c',
+                      'src/core/lib/security/credentials/composite/composite_credentials.c',
+                      'src/core/lib/security/credentials/credentials.c',
+                      'src/core/lib/security/credentials/credentials_metadata.c',
+                      'src/core/lib/security/credentials/fake/fake_credentials.c',
+                      'src/core/lib/security/credentials/google_default/credentials_posix.c',
+                      'src/core/lib/security/credentials/google_default/credentials_windows.c',
+                      'src/core/lib/security/credentials/google_default/google_default_credentials.c',
+                      'src/core/lib/security/credentials/iam/iam_credentials.c',
+                      'src/core/lib/security/credentials/jwt/json_token.c',
+                      'src/core/lib/security/credentials/jwt/jwt_credentials.c',
+                      'src/core/lib/security/credentials/jwt/jwt_verifier.c',
+                      'src/core/lib/security/credentials/oauth2/oauth2_credentials.c',
+                      'src/core/lib/security/credentials/plugin/plugin_credentials.c',
+                      'src/core/lib/security/credentials/ssl/ssl_credentials.c',
+                      'src/core/lib/security/transport/client_auth_filter.c',
+                      'src/core/lib/security/transport/handshake.c',
+                      'src/core/lib/security/transport/secure_endpoint.c',
+                      'src/core/lib/security/transport/security_connector.c',
+                      'src/core/lib/security/transport/server_auth_filter.c',
+                      'src/core/lib/security/transport/tsi_error.c',
+                      'src/core/lib/security/util/b64.c',
+                      'src/core/lib/security/util/json_util.c',
+                      'src/core/lib/surface/init_secure.c',
+                      'src/core/lib/tsi/fake_transport_security.c',
+                      'src/core/lib/tsi/ssl_transport_security.c',
+                      'src/core/lib/tsi/transport_security.c',
+                      'src/core/ext/transport/chttp2/client/secure/secure_channel_create.c',
+                      'src/core/ext/client_config/channel_connectivity.c',
+                      'src/core/ext/client_config/client_channel.c',
+                      'src/core/ext/client_config/client_channel_factory.c',
+                      'src/core/ext/client_config/client_config.c',
+                      'src/core/ext/client_config/client_config_plugin.c',
+                      'src/core/ext/client_config/connector.c',
+                      'src/core/ext/client_config/default_initial_connect_string.c',
+                      'src/core/ext/client_config/initial_connect_string.c',
+                      'src/core/ext/client_config/lb_policy.c',
+                      'src/core/ext/client_config/lb_policy_factory.c',
+                      'src/core/ext/client_config/lb_policy_registry.c',
+                      'src/core/ext/client_config/parse_address.c',
+                      'src/core/ext/client_config/resolver.c',
+                      'src/core/ext/client_config/resolver_factory.c',
+                      'src/core/ext/client_config/resolver_registry.c',
+                      'src/core/ext/client_config/subchannel.c',
+                      'src/core/ext/client_config/subchannel_call_holder.c',
+                      'src/core/ext/client_config/subchannel_index.c',
+                      'src/core/ext/client_config/uri_parser.c',
+                      'src/core/ext/transport/chttp2/server/insecure/server_chttp2.c',
+                      'src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c',
+                      'src/core/ext/transport/chttp2/client/insecure/channel_create.c',
+                      'src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c',
+                      'src/core/ext/lb_policy/grpclb/load_balancer_api.c',
+                      'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
+                      'third_party/nanopb/pb_common.c',
+                      'third_party/nanopb/pb_decode.c',
+                      'third_party/nanopb/pb_encode.c',
+                      'src/core/ext/lb_policy/pick_first/pick_first.c',
+                      'src/core/ext/lb_policy/round_robin/round_robin.c',
+                      'src/core/ext/resolver/dns/native/dns_resolver.c',
+                      'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
+                      'src/core/ext/load_reporting/load_reporting.c',
+                      'src/core/ext/load_reporting/load_reporting_filter.c',
+                      'src/core/ext/census/context.c',
+                      'src/core/ext/census/gen/census.pb.c',
+                      'src/core/ext/census/grpc_context.c',
+                      'src/core/ext/census/grpc_filter.c',
+                      'src/core/ext/census/grpc_plugin.c',
+                      'src/core/ext/census/initialize.c',
+                      'src/core/ext/census/mlog.c',
+                      'src/core/ext/census/operation.c',
+                      'src/core/ext/census/placeholders.c',
+                      'src/core/ext/census/tracing.c',
+                      'src/core/plugin_registry/grpc_plugin_registry.c'
+
+    ss.private_header_files = 'src/core/lib/profiling/timers.h',
+                              'src/core/lib/support/backoff.h',
+                              'src/core/lib/support/block_annotate.h',
+                              'src/core/lib/support/env.h',
+                              'src/core/lib/support/murmur_hash.h',
+                              'src/core/lib/support/stack_lockfree.h',
+                              'src/core/lib/support/string.h',
+                              'src/core/lib/support/string_windows.h',
+                              'src/core/lib/support/thd_internal.h',
+                              'src/core/lib/support/time_precise.h',
+                              'src/core/lib/support/tmpfile.h',
+                              'src/core/lib/channel/channel_args.h',
+                              'src/core/lib/channel/channel_stack.h',
+                              'src/core/lib/channel/channel_stack_builder.h',
+                              'src/core/lib/channel/compress_filter.h',
+                              'src/core/lib/channel/connected_channel.h',
+                              'src/core/lib/channel/context.h',
+                              'src/core/lib/channel/http_client_filter.h',
+                              'src/core/lib/channel/http_server_filter.h',
+                              'src/core/lib/compression/algorithm_metadata.h',
+                              'src/core/lib/compression/message_compress.h',
+                              'src/core/lib/debug/trace.h',
+                              'src/core/lib/http/format_request.h',
+                              'src/core/lib/http/httpcli.h',
+                              'src/core/lib/http/parser.h',
+                              'src/core/lib/iomgr/closure.h',
+                              'src/core/lib/iomgr/endpoint.h',
+                              'src/core/lib/iomgr/endpoint_pair.h',
+                              'src/core/lib/iomgr/error.h',
+                              'src/core/lib/iomgr/ev_epoll_linux.h',
+                              'src/core/lib/iomgr/ev_poll_and_epoll_posix.h',
+                              'src/core/lib/iomgr/ev_poll_posix.h',
+                              'src/core/lib/iomgr/ev_posix.h',
+                              'src/core/lib/iomgr/exec_ctx.h',
+                              'src/core/lib/iomgr/executor.h',
+                              'src/core/lib/iomgr/iocp_windows.h',
+                              'src/core/lib/iomgr/iomgr.h',
+                              'src/core/lib/iomgr/iomgr_internal.h',
+                              'src/core/lib/iomgr/iomgr_posix.h',
+                              'src/core/lib/iomgr/load_file.h',
+                              'src/core/lib/iomgr/network_status_tracker.h',
+                              'src/core/lib/iomgr/polling_entity.h',
+                              'src/core/lib/iomgr/pollset.h',
+                              'src/core/lib/iomgr/pollset_set.h',
+                              'src/core/lib/iomgr/pollset_set_windows.h',
+                              'src/core/lib/iomgr/pollset_windows.h',
+                              'src/core/lib/iomgr/resolve_address.h',
+                              'src/core/lib/iomgr/sockaddr.h',
+                              'src/core/lib/iomgr/sockaddr_posix.h',
+                              'src/core/lib/iomgr/sockaddr_utils.h',
+                              'src/core/lib/iomgr/sockaddr_windows.h',
+                              'src/core/lib/iomgr/socket_utils_posix.h',
+                              'src/core/lib/iomgr/socket_windows.h',
+                              'src/core/lib/iomgr/tcp_client.h',
+                              'src/core/lib/iomgr/tcp_posix.h',
+                              'src/core/lib/iomgr/tcp_server.h',
+                              'src/core/lib/iomgr/tcp_windows.h',
+                              'src/core/lib/iomgr/time_averaged_stats.h',
+                              'src/core/lib/iomgr/timer.h',
+                              'src/core/lib/iomgr/timer_heap.h',
+                              'src/core/lib/iomgr/udp_server.h',
+                              'src/core/lib/iomgr/unix_sockets_posix.h',
+                              'src/core/lib/iomgr/wakeup_fd_pipe.h',
+                              'src/core/lib/iomgr/wakeup_fd_posix.h',
+                              'src/core/lib/iomgr/workqueue.h',
+                              'src/core/lib/iomgr/workqueue_posix.h',
+                              'src/core/lib/iomgr/workqueue_windows.h',
+                              'src/core/lib/json/json.h',
+                              'src/core/lib/json/json_common.h',
+                              'src/core/lib/json/json_reader.h',
+                              'src/core/lib/json/json_writer.h',
+                              'src/core/lib/surface/api_trace.h',
+                              'src/core/lib/surface/call.h',
+                              'src/core/lib/surface/call_test_only.h',
+                              'src/core/lib/surface/channel.h',
+                              'src/core/lib/surface/channel_init.h',
+                              'src/core/lib/surface/channel_stack_type.h',
+                              'src/core/lib/surface/completion_queue.h',
+                              'src/core/lib/surface/event_string.h',
+                              'src/core/lib/surface/init.h',
+                              'src/core/lib/surface/lame_client.h',
+                              'src/core/lib/surface/server.h',
+                              'src/core/lib/transport/byte_stream.h',
+                              'src/core/lib/transport/connectivity_state.h',
+                              'src/core/lib/transport/metadata.h',
+                              'src/core/lib/transport/metadata_batch.h',
+                              'src/core/lib/transport/static_metadata.h',
+                              'src/core/lib/transport/transport.h',
+                              'src/core/lib/transport/transport_impl.h',
+                              'src/core/ext/transport/chttp2/transport/bin_decoder.h',
+                              'src/core/ext/transport/chttp2/transport/bin_encoder.h',
+                              'src/core/ext/transport/chttp2/transport/chttp2_transport.h',
+                              'src/core/ext/transport/chttp2/transport/frame.h',
+                              'src/core/ext/transport/chttp2/transport/frame_data.h',
+                              'src/core/ext/transport/chttp2/transport/frame_goaway.h',
+                              'src/core/ext/transport/chttp2/transport/frame_ping.h',
+                              'src/core/ext/transport/chttp2/transport/frame_rst_stream.h',
+                              'src/core/ext/transport/chttp2/transport/frame_settings.h',
+                              'src/core/ext/transport/chttp2/transport/frame_window_update.h',
+                              'src/core/ext/transport/chttp2/transport/hpack_encoder.h',
+                              'src/core/ext/transport/chttp2/transport/hpack_parser.h',
+                              'src/core/ext/transport/chttp2/transport/hpack_table.h',
+                              'src/core/ext/transport/chttp2/transport/http2_errors.h',
+                              'src/core/ext/transport/chttp2/transport/huffsyms.h',
+                              'src/core/ext/transport/chttp2/transport/incoming_metadata.h',
+                              'src/core/ext/transport/chttp2/transport/internal.h',
+                              'src/core/ext/transport/chttp2/transport/status_conversion.h',
+                              'src/core/ext/transport/chttp2/transport/stream_map.h',
+                              'src/core/ext/transport/chttp2/transport/timeout_encoding.h',
+                              'src/core/ext/transport/chttp2/transport/varint.h',
+                              'src/core/ext/transport/chttp2/alpn/alpn.h',
+                              'src/core/lib/security/context/security_context.h',
+                              'src/core/lib/security/credentials/composite/composite_credentials.h',
+                              'src/core/lib/security/credentials/credentials.h',
+                              'src/core/lib/security/credentials/fake/fake_credentials.h',
+                              'src/core/lib/security/credentials/google_default/google_default_credentials.h',
+                              'src/core/lib/security/credentials/iam/iam_credentials.h',
+                              'src/core/lib/security/credentials/jwt/json_token.h',
+                              'src/core/lib/security/credentials/jwt/jwt_credentials.h',
+                              'src/core/lib/security/credentials/jwt/jwt_verifier.h',
+                              'src/core/lib/security/credentials/oauth2/oauth2_credentials.h',
+                              'src/core/lib/security/credentials/plugin/plugin_credentials.h',
+                              'src/core/lib/security/credentials/ssl/ssl_credentials.h',
+                              'src/core/lib/security/transport/auth_filters.h',
+                              'src/core/lib/security/transport/handshake.h',
+                              'src/core/lib/security/transport/secure_endpoint.h',
+                              'src/core/lib/security/transport/security_connector.h',
+                              'src/core/lib/security/transport/tsi_error.h',
+                              'src/core/lib/security/util/b64.h',
+                              'src/core/lib/security/util/json_util.h',
+                              'src/core/lib/tsi/fake_transport_security.h',
+                              'src/core/lib/tsi/ssl_transport_security.h',
+                              'src/core/lib/tsi/ssl_types.h',
+                              'src/core/lib/tsi/transport_security.h',
+                              'src/core/lib/tsi/transport_security_interface.h',
+                              'src/core/ext/client_config/client_channel.h',
+                              'src/core/ext/client_config/client_channel_factory.h',
+                              'src/core/ext/client_config/client_config.h',
+                              'src/core/ext/client_config/connector.h',
+                              'src/core/ext/client_config/initial_connect_string.h',
+                              'src/core/ext/client_config/lb_policy.h',
+                              'src/core/ext/client_config/lb_policy_factory.h',
+                              'src/core/ext/client_config/lb_policy_registry.h',
+                              'src/core/ext/client_config/parse_address.h',
+                              'src/core/ext/client_config/resolver.h',
+                              'src/core/ext/client_config/resolver_factory.h',
+                              'src/core/ext/client_config/resolver_registry.h',
+                              'src/core/ext/client_config/subchannel.h',
+                              'src/core/ext/client_config/subchannel_call_holder.h',
+                              'src/core/ext/client_config/subchannel_index.h',
+                              'src/core/ext/client_config/uri_parser.h',
+                              'src/core/ext/lb_policy/grpclb/load_balancer_api.h',
+                              'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
+                              'third_party/nanopb/pb.h',
+                              'third_party/nanopb/pb_common.h',
+                              'third_party/nanopb/pb_decode.h',
+                              'third_party/nanopb/pb_encode.h',
+                              'src/core/ext/load_reporting/load_reporting.h',
+                              'src/core/ext/load_reporting/load_reporting_filter.h',
+                              'src/core/ext/census/aggregation.h',
+                              'src/core/ext/census/census_interface.h',
+                              'src/core/ext/census/census_rpc_stats.h',
+                              'src/core/ext/census/gen/census.pb.h',
+                              'src/core/ext/census/grpc_filter.h',
+                              'src/core/ext/census/mlog.h',
+                              'src/core/ext/census/rpc_metric_id.h'
+
+    ss.header_mappings_dir = '.'
+    # This isn't officially supported in Cocoapods. We've asked for an alternative:
+    # https://github.com/CocoaPods/CocoaPods/issues/4386
+    ss.xcconfig = {
+      'USE_HEADERMAP' => 'NO',
+      'ALWAYS_SEARCH_USER_PATHS' => 'NO',
+      'USER_HEADER_SEARCH_PATHS' => '"$(PODS_ROOT)/Headers/Private/gRPC"',
+      'HEADER_SEARCH_PATHS' => '"$(PODS_ROOT)/Headers/Private/gRPC/include"'
+    }
+
+    ss.requires_arc = false
+    ss.libraries = 'z'
+    ss.dependency 'BoringSSL', '~> 3.0'
+
+    # ss.compiler_flags = '-GCC_WARN_INHIBIT_ALL_WARNINGS', '-w'
+  end
+
+  # Objective-C wrapper around the core gRPC library.
+  s.subspec 'GRPCClient' do |ss|
+    src_dir = "#{objc_dir}/GRPCClient"
+    ss.source_files = "#{src_dir}/*.{h,m}", "#{src_dir}/**/*.{h,m}"
+    ss.private_header_files = "#{src_dir}/private/*.h"
+    ss.header_mappings_dir = "#{objc_dir}"
 
-  name = 'GRPCClient'
-  s.module_name = name
-  s.header_dir = name
+    ss.dependency 'gRPC/C-Core'
+    ss.dependency 'gRPC/RxLibrary'
 
-  src_dir = 'src/objective-c/GRPCClient'
-  s.source_files = "#{src_dir}/*.{h,m}", "#{src_dir}/**/*.{h,m}"
-  s.private_header_files = "#{src_dir}/private/*.h"
-  s.header_mappings_dir = "#{src_dir}"
+    # Certificates, to be able to establish TLS connections:
+    ss.resource_bundles = { 'gRPCCertificates' => ['etc/roots.pem'] }
+  end
 
-  s.dependency 'gRPC-Core', version
-  s.dependency 'gRPC-RxLibrary', version
+  # RPC library for ProtocolBuffers, based on gRPC
+  s.subspec 'ProtoRPC' do |ss|
+    src_dir = "#{objc_dir}/ProtoRPC"
+    ss.source_files = "#{src_dir}/*.{h,m}"
+    ss.header_mappings_dir = "#{objc_dir}"
 
-  # Certificates, to be able to establish TLS connections:
-  s.resource_bundles = { 'gRPCCertificates' => ['etc/roots.pem'] }
+    ss.dependency 'gRPC/GRPCClient'
+    ss.dependency 'gRPC/RxLibrary'
+    ss.dependency 'Protobuf', '~> 3.0.0-alpha-4'
+  end
 end
diff --git a/src/csharp/README.md b/src/csharp/README.md
index 86394135c842cb24b8c6622c263913a3f452d7cf..18d5945a8a1ac53868c271021eeaab5da6cad1a2 100644
--- a/src/csharp/README.md
+++ b/src/csharp/README.md
@@ -23,9 +23,9 @@ HOW TO USE
 
 - Open Visual Studio / MonoDevelop / Xamarin Studio and start a new project/solution.
 
-- Add NuGet package `Grpc` as a dependency (Project options -> Manage NuGet Packages).
+- Add the [Grpc](https://www.nuget.org/packages/Grpc/) NuGet package as a dependency (Project options -> Manage NuGet Packages).
 
-- To be able to generate code from Protocol Buffer (`.proto`) file definitions, add NuGet package `Grpc.Tools` that contains Protocol Buffers compiler (_protoc_) and the gRPC _protoc_ plugin.
+- To be able to generate code from Protocol Buffer (`.proto`) file definitions, add the [Grpc.Tools](https://www.nuget.org/packages/Grpc.Tools/) NuGet package that contains Protocol Buffers compiler (_protoc_) and the gRPC _protoc_ plugin.
 
 BUILD FROM SOURCE
 -----------------
diff --git a/src/objective-c/BoringSSL.podspec b/src/objective-c/BoringSSL.podspec
index 26a0451f7d3f132e51313f6715bf72c19ee12996..42b4434d0d3268ee623340e7ebb77c29d0e9fca4 100644
--- a/src/objective-c/BoringSSL.podspec
+++ b/src/objective-c/BoringSSL.podspec
@@ -109,8 +109,6 @@ Pod::Spec.new do |s|
   s.subspec 'Interface' do |ss|
     ss.header_mappings_dir = 'include/openssl'
     ss.source_files = 'include/openssl/*.h'
-    # Doesn't compile correctly; but doesn't seem to be needed:
-    ss.exclude_files = 'include/openssl/arm_arch.h'
   end
   s.subspec 'Implementation' do |ss|
     ss.header_mappings_dir = '.'
@@ -147,6 +145,11 @@ Pod::Spec.new do |s|
       #include "ssl.h"
       #include "crypto.h"
       #include "aes.h"
+      /* The following macros are defined by base.h. The latter is the first file included by the
+         other headers. */
+      #if defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)
+      #  include "arm_arch.h"
+      #endif
       #include "asn1.h"
       #include "asn1_mac.h"
       #include "asn1t.h"
diff --git a/src/python/grpcio/grpc/__init__.py b/src/python/grpcio/grpc/__init__.py
index afd7db1f75dd92dbf78e4e9b6746ac9efd67d5f9..de18421cf326e7d239571d8720307c80585f48e7 100644
--- a/src/python/grpcio/grpc/__init__.py
+++ b/src/python/grpcio/grpc/__init__.py
@@ -1219,9 +1219,9 @@ def server(thread_pool, handlers=None):
       to service RPCs.
     handlers: An optional sequence of GenericRpcHandlers to be used to service
       RPCs after the returned Server is started. These handlers need not be the
-      only handlers the returned Server will use to service RPCs; other
-      handlers may later be added to the returned Server by calling its
-      add_generic_rpc_handlers method any time before it is started.
+      only handlers the server will use to service RPCs; other handlers may
+      later be added by calling add_generic_rpc_handlers any time before the
+      returned Server is started.
 
   Returns:
     A Server with which RPCs can be serviced.
diff --git a/templates/gRPC.podspec.template b/templates/gRPC.podspec.template
new file mode 100644
index 0000000000000000000000000000000000000000..979cb1ef8e8fbb80e1308b84d315ae0f28538975
--- /dev/null
+++ b/templates/gRPC.podspec.template
@@ -0,0 +1,130 @@
+%YAML 1.2
+--- |
+  # GRPC CocoaPods podspec
+  # This file has been automatically generated from a template file.
+  # Please look at the templates directory instead.
+  # This file can be regenerated from the template by running
+  # tools/buildgen/generate_projects.sh
+
+  # Copyright 2015, Google Inc.
+  # All rights reserved.
+  #
+  # Redistribution and use in source and binary forms, with or without
+  # modification, are permitted provided that the following conditions are
+  # met:
+  #
+  #     * Redistributions of source code must retain the above copyright
+  # notice, this list of conditions and the following disclaimer.
+  #     * Redistributions in binary form must reproduce the above
+  # copyright notice, this list of conditions and the following disclaimer
+  # in the documentation and/or other materials provided with the
+  # distribution.
+  #     * Neither the name of Google Inc. nor the names of its
+  # contributors may be used to endorse or promote products derived from
+  # this software without specific prior written permission.
+  #
+  # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+  # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+  # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+  # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+  # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+  # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+  # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+  # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+  # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+  # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+  <%!
+  def grpc_files(libs):
+    out = []
+    for lib in libs:
+      if lib.name in ("grpc", "gpr"):
+        out += lib.get('headers', [])
+        out += lib.get('public_headers', [])
+        out += lib.get('src', [])
+    return out;
+  
+  def grpc_private_headers(libs):
+    out = []
+    for lib in libs:
+      if lib.name in ("grpc", "gpr"):
+        out += lib.get('headers', [])
+    return out
+  %>
+  Pod::Spec.new do |s|
+    s.name     = 'gRPC'
+    version = '0.14.0'
+    s.version  = version
+    s.summary  = 'gRPC client library for iOS/OSX'
+    s.homepage = 'http://www.grpc.io'
+    s.license  = 'New BSD'
+    s.authors  = { 'The gRPC contributors' => 'grpc-packages@google.com' }
+
+    s.source = { :git => 'https://github.com/grpc/grpc.git',
+                 :tag => "release-#{version.gsub(/\./, '_')}-objectivec-#{version}",
+                 :submodules => true }
+
+  
+    s.ios.deployment_target = '7.1'
+    s.osx.deployment_target = '10.9'
+    s.requires_arc = true
+  
+    objc_dir = 'src/objective-c'
+
+    # Reactive Extensions library for iOS.
+    s.subspec 'RxLibrary' do |ss|
+      src_dir = "#{objc_dir}/RxLibrary"
+      ss.source_files = "#{src_dir}/*.{h,m}", "#{src_dir}/**/*.{h,m}"
+      ss.private_header_files = "#{src_dir}/private/*.h"
+      ss.header_mappings_dir = "#{objc_dir}"
+    end
+
+    # Core cross-platform gRPC library, written in C.
+    s.subspec 'C-Core' do |ss|
+      ss.source_files = ${(',\n' + 22*' ').join('\'%s\'' % f for f in grpc_files(libs))}
+
+      ss.private_header_files = ${(',\n' + 30*' ').join('\'%s\'' % f for f in grpc_private_headers(libs))}
+
+      ss.header_mappings_dir = '.'
+      # This isn't officially supported in Cocoapods. We've asked for an alternative:
+      # https://github.com/CocoaPods/CocoaPods/issues/4386
+      ss.xcconfig = {
+        'USE_HEADERMAP' => 'NO',
+        'ALWAYS_SEARCH_USER_PATHS' => 'NO',
+        'USER_HEADER_SEARCH_PATHS' => '"$(PODS_ROOT)/Headers/Private/gRPC"',
+        'HEADER_SEARCH_PATHS' => '"$(PODS_ROOT)/Headers/Private/gRPC/include"'
+      }
+
+      ss.requires_arc = false
+      ss.libraries = 'z'
+      ss.dependency 'BoringSSL', '~> 3.0'
+
+      # ss.compiler_flags = '-GCC_WARN_INHIBIT_ALL_WARNINGS', '-w'
+    end
+
+    # Objective-C wrapper around the core gRPC library.
+    s.subspec 'GRPCClient' do |ss|
+      src_dir = "#{objc_dir}/GRPCClient"
+      ss.source_files = "#{src_dir}/*.{h,m}", "#{src_dir}/**/*.{h,m}"
+      ss.private_header_files = "#{src_dir}/private/*.h"
+      ss.header_mappings_dir = "#{objc_dir}"
+
+      ss.dependency 'gRPC/C-Core'
+      ss.dependency 'gRPC/RxLibrary'
+
+      # Certificates, to be able to establish TLS connections:
+      ss.resource_bundles = { 'gRPCCertificates' => ['etc/roots.pem'] }
+    end
+
+    # RPC library for ProtocolBuffers, based on gRPC
+    s.subspec 'ProtoRPC' do |ss|
+      src_dir = "#{objc_dir}/ProtoRPC"
+      ss.source_files = "#{src_dir}/*.{h,m}"
+      ss.header_mappings_dir = "#{objc_dir}"
+
+      ss.dependency 'gRPC/GRPCClient'
+      ss.dependency 'gRPC/RxLibrary'
+      ss.dependency 'Protobuf', '~> 3.0.0-alpha-4'
+    end
+  end
diff --git a/tools/distrib/python/grpcio_tools/setup.py b/tools/distrib/python/grpcio_tools/setup.py
index e025158a82bea07445c25414ddd3543bad7865dc..d804f34fc60b2ac824aea2e9c62d5e31ab816d73 100644
--- a/tools/distrib/python/grpcio_tools/setup.py
+++ b/tools/distrib/python/grpcio_tools/setup.py
@@ -134,7 +134,7 @@ setuptools.setup(
   namespace_packages=['grpc'],
   install_requires=[
     'protobuf>=3.0.0a3',
-    'grpcio>=0.14.0',
+    'grpcio>=0.15.0',
   ],
   package_data=package_data(),
 )
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index b0e20698bdef9ccb5af71b84f50a084618d65876..f081887fc0883b469183c3665fe9546dfcbf8eec 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -1081,6 +1081,18 @@ runs_per_test = args.runs_per_test
 forever = args.forever
 
 
+def _shut_down_legacy_server(legacy_server_port):
+  try:
+    version = int(urllib2.urlopen(
+        'http://localhost:%d/version_number' % legacy_server_port,
+        timeout=10).read())
+  except:
+    pass
+  else:
+    urllib2.urlopen(
+        'http://localhost:%d/quitquitquit' % legacy_server_port).read()
+
+
 def _shut_down_legacy_server(legacy_server_port):
   try:
     version = int(urllib2.urlopen(