diff --git a/.gitmodules b/.gitmodules
index ce647f3c455a9a70df81cdb7c535dc9ad6369831..d41b8d5213f11178270c2396a87aad64751bbb07 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,7 +4,7 @@
 [submodule "third_party/protobuf"]
 	path = third_party/protobuf
 	url = https://github.com/google/protobuf.git
-	branch = 3.0.0-beta-3
+	branch = 3.0.0-GA
 [submodule "third_party/gflags"]
 	path = third_party/gflags
 	url = https://github.com/gflags/gflags.git
diff --git a/build.yaml b/build.yaml
index 1dcc5653ceeab3e7b74e7c670386580f86715821..0ed10a483a9c3114c9b3232ea760e02e507f1084 100644
--- a/build.yaml
+++ b/build.yaml
@@ -829,7 +829,6 @@ libs:
   - grpc_lb_policy_grpclb
   - grpc_lb_policy_pick_first
   - grpc_lb_policy_round_robin
-  - grpc_lb_policy_grpclb
   - grpc_resolver_dns_native
   - grpc_resolver_sockaddr
   - grpc_load_reporting
@@ -928,7 +927,6 @@ libs:
   - grpc_lb_policy_grpclb
   - grpc_lb_policy_pick_first
   - grpc_lb_policy_round_robin
-  - grpc_lb_policy_grpclb
   - census
   generate_plugin_registry: true
   secure: false
diff --git a/doc/health-checking.md b/doc/health-checking.md
index 92512e942bd90f7d03bd1f3e6db4f48795f0a959..7be8107b60f5aadac3517e6e72d38f1305871e5f 100644
--- a/doc/health-checking.md
+++ b/doc/health-checking.md
@@ -58,7 +58,7 @@ a response must be sent back with an `OK` status and the status field should be
 set to `SERVING` or `NOT_SERVING` accordingly. If the service name is not
 registered, the server returns a `NOT_FOUND` GRPC status.
 
-The server should use an empty string as the key for server’s
+The server should use an empty string as the key for server's
 overall health status, so that a client not interested in a specific service can
 query the server's status with an empty request. The server can just do exact
 matching of the service name without support of any kind of wildcard matching.
diff --git a/examples/cpp/README.md b/examples/cpp/README.md
index 3fa7ad4c7847addee712d183b900d85bd288fa86..783935cd53d3206ded632c3fe0c8571a3c9d048a 100644
--- a/examples/cpp/README.md
+++ b/examples/cpp/README.md
@@ -2,26 +2,14 @@
 
 ## Installation
 
-To install gRPC on your system, follow the instructions to build from source [here](../../INSTALL.md). This also installs the protocol buffer compiler `protoc` (if you don't have it already), and the C++ gRPC plugin for `protoc`.
+To install gRPC on your system, follow the instructions to build from source
+[here](../../INSTALL.md). This also installs the protocol buffer compiler
+`protoc` (if you don't have it already), and the C++ gRPC plugin for `protoc`.
 
 ## Hello C++ gRPC!
 
-Here's how to build and run the C++ implementation of the [Hello World](../protos/helloworld.proto) example used in [Getting started](..).
-
-The example code for this and our other examples lives in the `examples`
-directory. Clone this repository to your local machine by running the
-following command:
-
-
-```sh
-$ git clone -b $(curl -L http://grpc.io/release) https://github.com/grpc/grpc
-```
-
-Change your current directory to examples/cpp/helloworld
-
-```sh
-$ cd examples/cpp/helloworld/
-```
+Here's how to build and run the C++ implementation of the [Hello
+World](../protos/helloworld.proto) example used in [Getting started](..).
 
 ### Client and server implementations
 
@@ -31,18 +19,25 @@ The server implementation is at [greeter_server.cc](helloworld/greeter_server.cc
 
 ### Try it!
 Build client and server:
+
 ```sh
 $ make
 ```
+
 Run the server, which will listen on port 50051:
+
 ```sh
 $ ./greeter_server
 ```
+
 Run the client (in a different terminal):
+
 ```sh
 $ ./greeter_client
 ```
-If things go smoothly, you will see the "Greeter received: Hello world" in the client side output.
+
+If things go smoothly, you will see the "Greeter received: Hello world" in the
+client side output.
 
 ## Tutorial
 
diff --git a/examples/cpp/cpptutorial.md b/examples/cpp/cpptutorial.md
index 80fef07192e332e8b233cf9e8221429c4fb9a5cf..de7e4b2636594b2e29b817cd68bf091f43938ae5 100644
--- a/examples/cpp/cpptutorial.md
+++ b/examples/cpp/cpptutorial.md
@@ -1,58 +1,77 @@
 #gRPC Basics: C++
 
-This tutorial provides a basic C++ programmer's introduction to working with gRPC. By walking through this example you'll learn how to:
+This tutorial provides a basic C++ programmer's introduction to working with
+gRPC. By walking through this example you'll learn how to:
 
-- Define a service in a .proto file.
+- Define a service in a `.proto` file.
 - Generate server and client code using the protocol buffer compiler.
 - Use the C++ gRPC API to write a simple client and server for your service.
 
-It assumes that you have read the [Getting started](..) guide and are familiar with [protocol buffers] (https://developers.google.com/protocol-buffers/docs/overview). Note that the example in this tutorial uses the proto3 version of the protocol buffers language, which is currently in alpha release: you can find out more in the [proto3 language guide](https://developers.google.com/protocol-buffers/docs/proto3) and see the [release notes](https://github.com/google/protobuf/releases) for the new version in the protocol buffers Github repository.
-
-This isn't a comprehensive guide to using gRPC in C++: more reference documentation is coming soon.
+It assumes that you are familiar with
+[protocol buffers](https://developers.google.com/protocol-buffers/docs/overview).
+Note that the example in this tutorial uses the proto3 version of the protocol
+buffers language, which is currently in alpha release: you can find out more in
+the [proto3 language guide](https://developers.google.com/protocol-buffers/docs/proto3)
+and see the [release notes](https://github.com/google/protobuf/releases) for the
+new version in the protocol buffers Github repository.
 
 ## Why use gRPC?
 
-Our example is a simple route mapping application that lets clients get information about features on their route, create a summary of their route, and exchange route information such as traffic updates with the server and other clients.
+Our example is a simple route mapping application that lets clients get
+information about features on their route, create a summary of their route, and
+exchange route information such as traffic updates with the server and other
+clients.
 
-With gRPC we can define our service once in a .proto file and implement clients and servers in any of gRPC's supported languages, which in turn can be run in environments ranging from servers inside Google to your own tablet - all the complexity of communication between different languages and environments is handled for you by gRPC. We also get all the advantages of working with protocol buffers, including efficient serialization, a simple IDL, and easy interface updating.
+With gRPC we can define our service once in a `.proto` file and implement clients
+and servers in any of gRPC's supported languages, which in turn can be run in
+environments ranging from servers inside Google to your own tablet - all the
+complexity of communication between different languages and environments is
+handled for you by gRPC. We also get all the advantages of working with protocol
+buffers, including efficient serialization, a simple IDL, and easy interface
+updating.
 
 ## Example code and setup
 
-The example code for our tutorial is in [examples/cpp/route_guide](route_guide). To download the example, clone this repository by running the following command:
-```shell
-$ git clone -b $(curl -L http://grpc.io/release) https://github.com/grpc/grpc
-```
-
-Then change your current directory to `examples/cpp/route_guide`:
-```shell
-$ cd examples/cpp/route_guide
-```
-
-You also should have the relevant tools installed to generate the server and client interface code - if you don't already, follow the setup instructions in [gRPC in 3 minutes](README.md).
-
+The example code for our tutorial is in [examples/cpp/route_guide](route_guide).
+You also should have the relevant tools installed to generate the server and
+client interface code - if you don't already, follow the setup instructions in
+[INSTALL.md](../../INSTALL.md).
 
 ## Defining the service
 
-Our first step (as you'll know from [Getting started](..) is to define the gRPC *service* and the method *request* and *response* types using [protocol buffers] (https://developers.google.com/protocol-buffers/docs/overview). You can see the complete .proto file in [`examples/protos/route_guide.proto`](../protos/route_guide.proto).
+Our first step is to define the gRPC *service* and the method *request* and
+*response* types using
+[protocol buffers](https://developers.google.com/protocol-buffers/docs/overview).
+You can see the complete `.proto` file in
+[`examples/protos/route_guide.proto`](../protos/route_guide.proto).
 
-To define a service, you specify a named `service` in your .proto file:
+To define a service, you specify a named `service` in your `.proto` file:
 
-```
+```protobuf
 service RouteGuide {
    ...
 }
 ```
 
-Then you define `rpc` methods inside your service definition, specifying their request and response types. gRPC lets you define four kinds of service method, all of which are used in the `RouteGuide` service:
+Then you define `rpc` methods inside your service definition, specifying their
+request and response types. gRPC lets you define four kinds of service method,
+all of which are used in the `RouteGuide` service:
 
-- A *simple RPC* where the client sends a request to the server using the stub and waits for a response to come back, just like a normal function call.
-```
+- A *simple RPC* where the client sends a request to the server using the stub
+  and waits for a response to come back, just like a normal function call.
+
+```protobuf
    // Obtains the feature at a given position.
    rpc GetFeature(Point) returns (Feature) {}
 ```
 
-- A *server-side streaming RPC* where the client sends a request to the server and gets a stream to read a sequence of messages back. The client reads from the returned stream until there are no more messages. As you can see in our example, you specify a server-side streaming method by placing the `stream` keyword before the *response* type.
-```
+- A *server-side streaming RPC* where the client sends a request to the server
+  and gets a stream to read a sequence of messages back. The client reads from
+  the returned stream until there are no more messages. As you can see in our
+  example, you specify a server-side streaming method by placing the `stream`
+  keyword before the *response* type.
+
+```protobuf
   // Obtains the Features available within the given Rectangle.  Results are
   // streamed rather than returned at once (e.g. in a response message with a
   // repeated field), as the rectangle may cover a large area and contain a
@@ -60,22 +79,38 @@ Then you define `rpc` methods inside your service definition, specifying their r
   rpc ListFeatures(Rectangle) returns (stream Feature) {}
 ```
 
-- A *client-side streaming RPC* where the client writes a sequence of messages and sends them to the server, again using a provided stream. Once the client has finished writing the messages, it waits for the server to read them all and return its response. You specify a client-side streaming method by placing the `stream` keyword before the *request* type.
-```
+- A *client-side streaming RPC* where the client writes a sequence of messages
+  and sends them to the server, again using a provided stream. Once the client
+  has finished writing the messages, it waits for the server to read them all
+  and return its response. You specify a client-side streaming method by placing
+  the `stream` keyword before the *request* type.
+
+```protobuf
   // Accepts a stream of Points on a route being traversed, returning a
   // RouteSummary when traversal is completed.
   rpc RecordRoute(stream Point) returns (RouteSummary) {}
 ```
 
-- A *bidirectional streaming RPC* where both sides send a sequence of messages using a read-write stream. The two streams operate independently, so clients and servers can read and write in whatever order they like: for example, the server could wait to receive all the client messages before writing its responses, or it could alternately read a message then write a message, or some other combination of reads and writes. The order of messages in each stream is preserved. You specify this type of method by placing the `stream` keyword before both the request and the response.
-```
+- A *bidirectional streaming RPC* where both sides send a sequence of messages
+  using a read-write stream. The two streams operate independently, so clients
+  and servers can read and write in whatever order they like: for example, the
+  server could wait to receive all the client messages before writing its
+  responses, or it could alternately read a message then write a message, or
+  some other combination of reads and writes. The order of messages in each
+  stream is preserved. You specify this type of method by placing the `stream`
+  keyword before both the request and the response.
+
+```protobuf
   // Accepts a stream of RouteNotes sent while a route is being traversed,
   // while receiving other RouteNotes (e.g. from other users).
   rpc RouteChat(stream RouteNote) returns (stream RouteNote) {}
 ```
 
-Our .proto file also contains protocol buffer message type definitions for all the request and response types used in our service methods - for example, here's the `Point` message type:
-```
+Our `.proto` file also contains protocol buffer message type definitions for all
+the request and response types used in our service methods - for example, here's
+the `Point` message type:
+
+```protobuf
 // Points are represented as latitude-longitude pairs in the E7 representation
 // (degrees multiplied by 10**7 and rounded to the nearest integer).
 // Latitudes should be in the range +/- 90 degrees and longitude should be in
@@ -86,12 +121,16 @@ message Point {
 }
 ```
 
-
 ## Generating client and server code
 
-Next we need to generate the gRPC client and server interfaces from our .proto service definition. We do this using the protocol buffer compiler `protoc` with a special gRPC C++ plugin.
+Next we need to generate the gRPC client and server interfaces from our `.proto`
+service definition. We do this using the protocol buffer compiler `protoc` with
+a special gRPC C++ plugin.
 
-For simplicity, we've provided a [makefile](route_guide/Makefile) that runs `protoc` for you with the appropriate plugin, input, and output (if you want to run this yourself, make sure you've installed protoc and followed the gRPC code [installation instructions](../../INSTALL.md) first):
+For simplicity, we've provided a [makefile](route_guide/Makefile) that runs
+`protoc` for you with the appropriate plugin, input, and output (if you want to
+run this yourself, make sure you've installed protoc and followed the gRPC code
+[installation instructions](../../INSTALL.md) first):
 
 ```shell
 $ make route_guide.grpc.pb.cc route_guide.pb.cc
@@ -107,39 +146,58 @@ $ protoc -I ../../protos --cpp_out=. ../../protos/route_guide.proto
 Running this command generates the following files in your current directory:
 - `route_guide.pb.h`, the header which declares your generated message classes
 - `route_guide.pb.cc`, which contains the implementation of your message classes
-- `route_guide.grpc.pb.h`, the header which declares your generated service classes
-- `route_guide.grpc.pb.cc`, which contains the implementation of your service classes
+- `route_guide.grpc.pb.h`, the header which declares your generated service
+  classes
+- `route_guide.grpc.pb.cc`, which contains the implementation of your service
+  classes
 
 These contain:
-- All the protocol buffer code to populate, serialize, and retrieve our request and response message types
+- All the protocol buffer code to populate, serialize, and retrieve our request
+  and response message types
 - A class called `RouteGuide` that contains
-   - a remote interface type (or *stub*) for clients to call with the methods defined in the `RouteGuide` service.
-   - two abstract interfaces for servers to implement, also with the methods defined in the `RouteGuide` service.
+   - a remote interface type (or *stub*) for clients to call with the methods
+     defined in the `RouteGuide` service.
+   - two abstract interfaces for servers to implement, also with the methods
+     defined in the `RouteGuide` service.
 
 
 <a name="server"></a>
 ## Creating the server
 
-First let's look at how we create a `RouteGuide` server. If you're only interested in creating gRPC clients, you can skip this section and go straight to [Creating the client](#client) (though you might find it interesting anyway!).
+First let's look at how we create a `RouteGuide` server. If you're only
+interested in creating gRPC clients, you can skip this section and go straight
+to [Creating the client](#client) (though you might find it interesting
+anyway!).
 
 There are two parts to making our `RouteGuide` service do its job:
-- Implementing the service interface generated from our service definition: doing the actual "work" of our service.
-- Running a gRPC server to listen for requests from clients and return the service responses.
+- Implementing the service interface generated from our service definition:
+  doing the actual "work" of our service.
+- Running a gRPC server to listen for requests from clients and return the
+  service responses.
 
-You can find our example `RouteGuide` server in [route_guide/route_guide_server.cc](route_guide/route_guide_server.cc). Let's take a closer look at how it works.
+You can find our example `RouteGuide` server in
+[route_guide/route_guide_server.cc](route_guide/route_guide_server.cc). Let's
+take a closer look at how it works.
 
 ### Implementing RouteGuide
 
-As you can see, our server has a `RouteGuideImpl` class that implements the generated `RouteGuide::Service` interface:
+As you can see, our server has a `RouteGuideImpl` class that implements the
+generated `RouteGuide::Service` interface:
 
 ```cpp
 class RouteGuideImpl final : public RouteGuide::Service {
 ...
 }
 ```
-In this case we're implementing the *synchronous* version of `RouteGuide`, which provides our default gRPC server behaviour. It's also possible to implement an asynchronous interface, `RouteGuide::AsyncService`, which allows you to further customize your server's threading behaviour, though we won't look at this in this tutorial.
+In this case we're implementing the *synchronous* version of `RouteGuide`, which
+provides our default gRPC server behaviour. It's also possible to implement an
+asynchronous interface, `RouteGuide::AsyncService`, which allows you to further
+customize your server's threading behaviour, though we won't look at this in
+this tutorial.
 
-`RouteGuideImpl` implements all our service methods. Let's look at the simplest type first, `GetFeature`, which just gets a `Point` from the client and returns the corresponding feature information from its database in a `Feature`.
+`RouteGuideImpl` implements all our service methods. Let's look at the simplest
+type first, `GetFeature`, which just gets a `Point` from the client and returns
+the corresponding feature information from its database in a `Feature`.
 
 ```cpp
   Status GetFeature(ServerContext* context, const Point* point,
@@ -150,34 +208,52 @@ In this case we're implementing the *synchronous* version of `RouteGuide`, which
   }
 ```
 
-The method is passed a context object for the RPC, the client's `Point` protocol buffer request, and a `Feature` protocol buffer to fill in with the response information. In the method we populate the `Feature` with the appropriate information, and then `return` with an `OK` status to tell gRPC that we've finished dealing with the RPC and that the `Feature` can be returned to the client.
+The method is passed a context object for the RPC, the client's `Point` protocol
+buffer request, and a `Feature` protocol buffer to fill in with the response
+information. In the method we populate the `Feature` with the appropriate
+information, and then `return` with an `OK` status to tell gRPC that we've
+finished dealing with the RPC and that the `Feature` can be returned to the
+client.
 
-Now let's look at something a bit more complicated - a streaming RPC. `ListFeatures` is a server-side streaming RPC, so we need to send back multiple `Feature`s to our client.
+Now let's look at something a bit more complicated - a streaming RPC.
+`ListFeatures` is a server-side streaming RPC, so we need to send back multiple
+`Feature`s to our client.
 
 ```cpp
-  Status ListFeatures(ServerContext* context, const Rectangle* rectangle,
-                      ServerWriter<Feature>* writer) override {
-    auto lo = rectangle->lo();
-    auto hi = rectangle->hi();
-    long left = std::min(lo.longitude(), hi.longitude());
-    long right = std::max(lo.longitude(), hi.longitude());
-    long top = std::max(lo.latitude(), hi.latitude());
-    long bottom = std::min(lo.latitude(), hi.latitude());
-    for (const Feature& f : feature_list_) {
-      if (f.location().longitude() >= left &&
-          f.location().longitude() <= right &&
-          f.location().latitude() >= bottom &&
-          f.location().latitude() <= top) {
-        writer->Write(f);
-      }
+Status ListFeatures(ServerContext* context, const Rectangle* rectangle,
+                    ServerWriter<Feature>* writer) override {
+  auto lo = rectangle->lo();
+  auto hi = rectangle->hi();
+  long left = std::min(lo.longitude(), hi.longitude());
+  long right = std::max(lo.longitude(), hi.longitude());
+  long top = std::max(lo.latitude(), hi.latitude());
+  long bottom = std::min(lo.latitude(), hi.latitude());
+  for (const Feature& f : feature_list_) {
+    if (f.location().longitude() >= left &&
+        f.location().longitude() <= right &&
+        f.location().latitude() >= bottom &&
+        f.location().latitude() <= top) {
+      writer->Write(f);
     }
-    return Status::OK;
   }
+  return Status::OK;
+}
 ```
 
-As you can see, instead of getting simple request and response objects in our method parameters, this time we get a request object (the `Rectangle` in which our client wants to find `Feature`s) and a special `ServerWriter` object. In the method, we populate as many `Feature` objects as we need to return, writing them to the `ServerWriter` using its `Write()` method. Finally, as in our simple RPC, we `return Status::OK` to tell gRPC that we've finished writing responses.
+As you can see, instead of getting simple request and response objects in our
+method parameters, this time we get a request object (the `Rectangle` in which
+our client wants to find `Feature`s) and a special `ServerWriter` object. In the
+method, we populate as many `Feature` objects as we need to return, writing them
+to the `ServerWriter` using its `Write()` method. Finally, as in our simple RPC,
+we `return Status::OK` to tell gRPC that we've finished writing responses.
 
-If you look at the client-side streaming method `RecordRoute` you'll see it's quite similar, except this time we get a `ServerReader` instead of a request object and a single response. We use the `ServerReader`s `Read()` method to repeatedly read in our client's requests to a request object (in this case a `Point`) until there are no more messages: the server needs to check the return value of `Read()` after each call. If `true`, the stream is still good and it can continue reading; if `false` the message stream has ended.
+If you look at the client-side streaming method `RecordRoute` you'll see it's
+quite similar, except this time we get a `ServerReader` instead of a request
+object and a single response. We use the `ServerReader`s `Read()` method to
+repeatedly read in our client's requests to a request object (in this case a
+`Point`) until there are no more messages: the server needs to check the return
+value of `Read()` after each call. If `true`, the stream is still good and it
+can continue reading; if `false` the message stream has ended.
 
 ```cpp
 while (stream->Read(&point)) {
@@ -205,11 +281,18 @@ Finally, let's look at our bidirectional streaming RPC `RouteChat()`.
   }
 ```
 
-This time we get a `ServerReaderWriter` that can be used to read *and* write messages. The syntax for reading and writing here is exactly the same as for our client-streaming and server-streaming methods. Although each side will always get the other's messages in the order they were written, both the client and server can read and write in any order — the streams operate completely independently.
+This time we get a `ServerReaderWriter` that can be used to read *and* write
+messages. The syntax for reading and writing here is exactly the same as for our
+client-streaming and server-streaming methods. Although each side will always
+get the other's messages in the order they were written, both the client and
+server can read and write in any order — the streams operate completely
+independently.
 
 ### Starting the server
 
-Once we've implemented all our methods, we also need to start up a gRPC server so that clients can actually use our service. The following snippet shows how we do this for our `RouteGuide` service:
+Once we've implemented all our methods, we also need to start up a gRPC server
+so that clients can actually use our service. The following snippet shows how we
+do this for our `RouteGuide` service:
 
 ```cpp
 void RunServer(const std::string& db_path) {
@@ -227,44 +310,55 @@ void RunServer(const std::string& db_path) {
 As you can see, we build and start our server using a `ServerBuilder`. To do this, we:
 
 1. Create an instance of our service implementation class `RouteGuideImpl`.
-2. Create an instance of the factory `ServerBuilder` class.
-3. Specify the address and port we want to use to listen for client requests using the builder's `AddListeningPort()` method.
-4. Register our service implementation with the builder.
-5. Call `BuildAndStart()` on the builder to create and start an RPC server for our service.
-5. Call `Wait()` on the server to do a blocking wait until process is killed or `Shutdown()` is called.
+1. Create an instance of the factory `ServerBuilder` class.
+1. Specify the address and port we want to use to listen for client requests
+   using the builder's `AddListeningPort()` method.
+1. Register our service implementation with the builder.
+1. Call `BuildAndStart()` on the builder to create and start an RPC server for
+   our service.
+1. Call `Wait()` on the server to do a blocking wait until process is killed or
+   `Shutdown()` is called.
 
 <a name="client"></a>
 ## Creating the client
 
-In this section, we'll look at creating a C++ client for our `RouteGuide` service. You can see our complete example client code in [route_guide/route_guide_client.cc](route_guide/route_guide_client.cc).
+In this section, we'll look at creating a C++ client for our `RouteGuide`
+service. You can see our complete example client code in
+[route_guide/route_guide_client.cc](route_guide/route_guide_client.cc).
 
 ### Creating a stub
 
 To call service methods, we first need to create a *stub*.
 
-First we need to create a gRPC *channel* for our stub, specifying the server address and port we want to connect to without SSL:
+First we need to create a gRPC *channel* for our stub, specifying the server
+address and port we want to connect to without SSL:
 
 ```cpp
 grpc::CreateChannel("localhost:50051", grpc::InsecureChannelCredentials());
 ```
 
-Now we can use the channel to create our stub using the `NewStub` method provided in the `RouteGuide` class we generated from our .proto.
+Now we can use the channel to create our stub using the `NewStub` method
+provided in the `RouteGuide` class we generated from our `.proto`.
 
 ```cpp
- public:
-  RouteGuideClient(std::shared_ptr<Channel> channel, const std::string& db)
-      : stub_(RouteGuide::NewStub(channel)) {
-    ...
-  }
+public:
+ RouteGuideClient(std::shared_ptr<Channel> channel, const std::string& db)
+     : stub_(RouteGuide::NewStub(channel)) {
+   ...
+ }
 ```
 
 ### Calling service methods
 
-Now let's look at how we call our service methods. Note that in this tutorial we're calling the *blocking/synchronous* versions of each method: this means that the RPC call waits for the server to respond, and will either return a response or raise an exception.
+Now let's look at how we call our service methods. Note that in this tutorial
+we're calling the *blocking/synchronous* versions of each method: this means
+that the RPC call waits for the server to respond, and will either return a
+response or raise an exception.
 
 #### Simple RPC
 
-Calling the simple RPC `GetFeature` is nearly as straightforward as calling a local method.
+Calling the simple RPC `GetFeature` is nearly as straightforward as calling a
+local method.
 
 ```cpp
   Point point;
@@ -281,33 +375,53 @@ Calling the simple RPC `GetFeature` is nearly as straightforward as calling a lo
   }
 ```
 
-As you can see, we create and populate a request protocol buffer object (in our case `Point`), and create a response protocol buffer object for the server to fill in. We also create a `ClientContext` object for our call - you can optionally set RPC configuration values on this object, such as deadlines, though for now we'll use the default settings. Note that you cannot reuse this object between calls. Finally, we call the method on the stub, passing it the context, request, and response. If the method returns `OK`, then we can read the response information from the server from our response object.
+As you can see, we create and populate a request protocol buffer object (in our
+case `Point`), and create a response protocol buffer object for the server to
+fill in. We also create a `ClientContext` object for our call - you can
+optionally set RPC configuration values on this object, such as deadlines,
+though for now we'll use the default settings. Note that you cannot reuse this
+object between calls. Finally, we call the method on the stub, passing it the
+context, request, and response. If the method returns `OK`, then we can read the
+response information from the server from our response object.
 
 ```cpp
-      std::cout << "Found feature called " << feature->name()  << " at "
-                << feature->location().latitude()/kCoordFactor_ << ", "
-                << feature->location().longitude()/kCoordFactor_ << std::endl;
+std::cout << "Found feature called " << feature->name()  << " at "
+          << feature->location().latitude()/kCoordFactor_ << ", "
+          << feature->location().longitude()/kCoordFactor_ << std::endl;
 ```
 
 #### Streaming RPCs
 
-Now let's look at our streaming methods. If you've already read [Creating the server](#server) some of this may look very familiar - streaming RPCs are implemented in a similar way on both sides. Here's where we call the server-side streaming method `ListFeatures`, which returns a stream of geographical `Feature`s:
+Now let's look at our streaming methods. If you've already read [Creating the
+server](#server) some of this may look very familiar - streaming RPCs are
+implemented in a similar way on both sides. Here's where we call the server-side
+streaming method `ListFeatures`, which returns a stream of geographical
+`Feature`s:
 
 ```cpp
-    std::unique_ptr<ClientReader<Feature> > reader(
-        stub_->ListFeatures(&context, rect));
-    while (reader->Read(&feature)) {
-      std::cout << "Found feature called "
-                << feature.name() << " at "
-                << feature.location().latitude()/kCoordFactor_ << ", "
-                << feature.location().longitude()/kCoordFactor_ << std::endl;
-    }
-    Status status = reader->Finish();
+std::unique_ptr<ClientReader<Feature> > reader(
+    stub_->ListFeatures(&context, rect));
+while (reader->Read(&feature)) {
+  std::cout << "Found feature called "
+            << feature.name() << " at "
+            << feature.location().latitude()/kCoordFactor_ << ", "
+            << feature.location().longitude()/kCoordFactor_ << std::endl;
+}
+Status status = reader->Finish();
 ```
 
-Instead of passing the method a context, request, and response, we pass it a context and request and get a `ClientReader` object back. The client can use the `ClientReader` to read the server's responses. We use the `ClientReader`s `Read()` method to repeatedly read in the server's responses to a response protocol buffer object (in this case a `Feature`) until there are no more messages: the client needs to check the return value of `Read()` after each call. If `true`, the stream is still good and it can continue reading; if `false` the message stream has ended. Finally, we call `Finish()` on the stream to complete the call and get our RPC status.
+Instead of passing the method a context, request, and response, we pass it a
+context and request and get a `ClientReader` object back. The client can use the
+`ClientReader` to read the server's responses. We use the `ClientReader`s
+`Read()` method to repeatedly read in the server's responses to a response
+protocol buffer object (in this case a `Feature`) until there are no more
+messages: the client needs to check the return value of `Read()` after each
+call. If `true`, the stream is still good and it can continue reading; if
+`false` the message stream has ended. Finally, we call `Finish()` on the stream
+to complete the call and get our RPC status.
 
-The client-side streaming method `RecordRoute` is similar, except there we pass the method a context and response object and get back a `ClientWriter`.
+The client-side streaming method `RecordRoute` is similar, except there we pass
+the method a context and response object and get back a `ClientWriter`.
 
 ```cpp
     std::unique_ptr<ClientWriter<Point> > writer(
@@ -337,16 +451,26 @@ The client-side streaming method `RecordRoute` is similar, except there we pass
     }
 ```
 
-Once we've finished writing our client's requests to the stream using `Write()`, we need to call `WritesDone()` on the stream to let gRPC know that we've finished writing, then `Finish()` to complete the call and get our RPC status. If the status is `OK`, our response object that we initially passed to `RecordRoute()` will be populated with the server's response.
+Once we've finished writing our client's requests to the stream using `Write()`,
+we need to call `WritesDone()` on the stream to let gRPC know that we've
+finished writing, then `Finish()` to complete the call and get our RPC status.
+If the status is `OK`, our response object that we initially passed to
+`RecordRoute()` will be populated with the server's response.
 
-Finally, let's look at our bidirectional streaming RPC `RouteChat()`. In this case, we just pass a context to the method and get back a `ClientReaderWriter`, which we can use to both write and read messages.
+Finally, let's look at our bidirectional streaming RPC `RouteChat()`. In this
+case, we just pass a context to the method and get back a `ClientReaderWriter`,
+which we can use to both write and read messages.
 
 ```cpp
-    std::shared_ptr<ClientReaderWriter<RouteNote, RouteNote> > stream(
-        stub_->RouteChat(&context));
+std::shared_ptr<ClientReaderWriter<RouteNote, RouteNote> > stream(
+    stub_->RouteChat(&context));
 ```
 
-The syntax for reading and writing here is exactly the same as for our client-streaming and server-streaming methods. Although each side will always get the other's messages in the order they were written, both the client and server can read and write in any order — the streams operate completely independently.
+The syntax for reading and writing here is exactly the same as for our
+client-streaming and server-streaming methods. Although each side will always
+get the other's messages in the order they were written, both the client and
+server can read and write in any order — the streams operate completely
+independently.
 
 ## Try it out!
 
@@ -362,4 +486,3 @@ Run the client (in a different terminal):
 ```shell
 $ ./route_guide_client
 ```
-
diff --git a/examples/cpp/helloworld/Makefile b/examples/cpp/helloworld/Makefile
index df82f4688fc527df57a451f70411c1ea91372190..2c50b8208b18eb35292eac1706379912d44fc1e6 100644
--- a/examples/cpp/helloworld/Makefile
+++ b/examples/cpp/helloworld/Makefile
@@ -107,7 +107,7 @@ ifneq ($(HAS_VALID_PROTOC),true)
 	@echo "Please install Google protocol buffers 3.0.0 and its compiler."
 	@echo "You can find it here:"
 	@echo
-	@echo "   https://github.com/google/protobuf/releases/tag/v3.0.0-beta-3.3"
+	@echo "   https://github.com/google/protobuf/releases/tag/v3.0.0"
 	@echo
 	@echo "Here is what I get when trying to evaluate your version of protoc:"
 	@echo
diff --git a/examples/cpp/route_guide/Makefile b/examples/cpp/route_guide/Makefile
index ba5e45c05c24123eca651f2c5d19946315a32ad0..00cf9ad4e62df439dd25fbcc5e263a49b2f5959f 100644
--- a/examples/cpp/route_guide/Makefile
+++ b/examples/cpp/route_guide/Makefile
@@ -96,7 +96,7 @@ ifneq ($(HAS_VALID_PROTOC),true)
 	@echo "Please install Google protocol buffers 3.0.0 and its compiler."
 	@echo "You can find it here:"
 	@echo
-	@echo "   https://github.com/google/protobuf/releases/tag/v3.0.0-beta-3.3"
+	@echo "   https://github.com/google/protobuf/releases/tag/v3.0.0"
 	@echo
 	@echo "Here is what I get when trying to evaluate your version of protoc:"
 	@echo
diff --git a/examples/csharp/helloworld/.nuget/packages.config b/examples/csharp/helloworld/.nuget/packages.config
deleted file mode 100644
index aa060800c19d52a86e1ab820058cb56073772e23..0000000000000000000000000000000000000000
--- a/examples/csharp/helloworld/.nuget/packages.config
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="Grpc.Tools" version="0.15.0" />
-</packages>
\ No newline at end of file
diff --git a/examples/csharp/helloworld/Greeter.sln b/examples/csharp/helloworld/Greeter.sln
index 9430e94de999d5bfb6ee55dcaf15240401cb9838..49e364d91c0d0f2f4e28ec67f738dfd96be16014 100644
--- a/examples/csharp/helloworld/Greeter.sln
+++ b/examples/csharp/helloworld/Greeter.sln
@@ -9,11 +9,6 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GreeterServer", "GreeterSer
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GreeterClient", "GreeterClient\GreeterClient.csproj", "{ACCF4597-3748-4117-8633-1CB767F8CCC3}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{FF1EBE95-F20D-4C27-8A61-D0125F3C8152}"
-	ProjectSection(SolutionItems) = preProject
-		.nuget\packages.config = .nuget\packages.config
-	EndProjectSection
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
diff --git a/examples/csharp/helloworld/Greeter/packages.config b/examples/csharp/helloworld/Greeter/packages.config
index ff9d6bbf73f4dd8dd8f5be0e8fd722dbf2ea8e06..c94bb873073d010f9a17760283fb7ec0437865da 100644
--- a/examples/csharp/helloworld/Greeter/packages.config
+++ b/examples/csharp/helloworld/Greeter/packages.config
@@ -4,4 +4,5 @@
   <package id="Grpc" version="0.15.0" targetFramework="net45" />
   <package id="Grpc.Core" version="0.15.0" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.5" targetFramework="net45" />
+  <package id="Grpc.Tools" version="0.15.0" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/examples/csharp/route_guide/.nuget/packages.config b/examples/csharp/route_guide/.nuget/packages.config
deleted file mode 100644
index aa060800c19d52a86e1ab820058cb56073772e23..0000000000000000000000000000000000000000
--- a/examples/csharp/route_guide/.nuget/packages.config
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<packages>
-  <package id="Grpc.Tools" version="0.15.0" />
-</packages>
\ No newline at end of file
diff --git a/examples/csharp/route_guide/RouteGuide.sln b/examples/csharp/route_guide/RouteGuide.sln
index 0b79fdc5ca78636be320510fcb54c5a772012eeb..00065b0ba9d3f258cd69813c8921ee4600e2504f 100644
--- a/examples/csharp/route_guide/RouteGuide.sln
+++ b/examples/csharp/route_guide/RouteGuide.sln
@@ -9,11 +9,6 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RouteGuideClient", "RouteGu
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "RouteGuideServer", "RouteGuideServer\RouteGuideServer.csproj", "{4B7C7794-BE24-4477-ACE7-18259EB73D27}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{2F6B184B-A576-4F21-AF2E-27E73D1FC96E}"
-	ProjectSection(SolutionItems) = preProject
-		.nuget\packages.config = .nuget\packages.config
-	EndProjectSection
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
diff --git a/examples/csharp/route_guide/RouteGuide/RouteGuide.csproj b/examples/csharp/route_guide/RouteGuide/RouteGuide.csproj
index 601d16ba24d8214252b0884a5069d102183f8f3f..942d94f66c7c00033684a891cafd0db2e3e2459b 100644
--- a/examples/csharp/route_guide/RouteGuide/RouteGuide.csproj
+++ b/examples/csharp/route_guide/RouteGuide/RouteGuide.csproj
@@ -45,15 +45,15 @@
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
-    <Reference Include="System.Interactive.Async, Version=1.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Ix-Async.1.2.5\lib\net45\System.Interactive.Async.dll</HintPath>
-    </Reference>
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
+    <Reference Include="System.Interactive.Async, Version=1.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\Ix-Async.1.2.5\lib\net45\System.Interactive.Async.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Properties\AssemblyInfo.cs" />
diff --git a/examples/csharp/route_guide/RouteGuideServer/RouteGuideServer.csproj b/examples/csharp/route_guide/RouteGuideServer/RouteGuideServer.csproj
index 5bf46b05b89f94976f5e86053b67d759055a8883..4ffc5ccca9855fef05cfe68acd6ba77b7b9ceb58 100644
--- a/examples/csharp/route_guide/RouteGuideServer/RouteGuideServer.csproj
+++ b/examples/csharp/route_guide/RouteGuideServer/RouteGuideServer.csproj
@@ -47,15 +47,15 @@
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
-    <Reference Include="System.Interactive.Async, Version=1.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Ix-Async.1.2.5\lib\net45\System.Interactive.Async.dll</HintPath>
-    </Reference>
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
+    <Reference Include="System.Interactive.Async, Version=1.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\Ix-Async.1.2.5\lib\net45\System.Interactive.Async.dll</HintPath>
+    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Program.cs" />
diff --git a/examples/csharp/route_guide/RouteGuideServer/packages.config b/examples/csharp/route_guide/RouteGuideServer/packages.config
index b962a7232a93c4283d675b79631d2b234b07565c..916fe4c01db1f67b01cc67da31ba5fee156735f4 100644
--- a/examples/csharp/route_guide/RouteGuideServer/packages.config
+++ b/examples/csharp/route_guide/RouteGuideServer/packages.config
@@ -5,4 +5,5 @@
   <package id="Grpc.Core" version="0.15.0" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.5" targetFramework="net45" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net45" />
+  <package id="Grpc.Tools" version="0.15.0" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/examples/objective-c/auth_sample/AuthTestService.podspec b/examples/objective-c/auth_sample/AuthTestService.podspec
index d709c7e636f7a9fe515e47a2a40da2faec60478a..afccf08bbf1cee19148e419ab21fd8496725d30d 100644
--- a/examples/objective-c/auth_sample/AuthTestService.podspec
+++ b/examples/objective-c/auth_sample/AuthTestService.podspec
@@ -14,7 +14,7 @@ Pod::Spec.new do |s|
   src = "../../protos"
 
   # Run protoc with the Objective-C and gRPC plugins to generate protocol messages and gRPC clients.
-  s.dependency "!ProtoCompiler-gRPCPlugin", "~> 1.0.0-pre1"
+  s.dependency "!ProtoCompiler-gRPCPlugin", "~> 1.0.0-pre1.2"
 
   # Pods directory corresponding to this app's Podfile, relative to the location of this podspec.
   pods_root = 'Pods'
diff --git a/examples/objective-c/helloworld/HelloWorld.podspec b/examples/objective-c/helloworld/HelloWorld.podspec
index 48364fc0af1c3e34a4800df8d493aff2de488f84..9f07bd6b305dee1861d8ccfef300021d806d9f82 100644
--- a/examples/objective-c/helloworld/HelloWorld.podspec
+++ b/examples/objective-c/helloworld/HelloWorld.podspec
@@ -14,7 +14,7 @@ Pod::Spec.new do |s|
   src = "../../protos"
 
   # Run protoc with the Objective-C and gRPC plugins to generate protocol messages and gRPC clients.
-  s.dependency "!ProtoCompiler-gRPCPlugin", "~> 1.0.0-pre1"
+  s.dependency "!ProtoCompiler-gRPCPlugin", "~> 1.0.0-pre1.2"
 
   # Pods directory corresponding to this app's Podfile, relative to the location of this podspec.
   pods_root = 'Pods'
diff --git a/examples/objective-c/route_guide/RouteGuide.podspec b/examples/objective-c/route_guide/RouteGuide.podspec
index 04bc10bc0b5a7ff529ca8e7991bfec96aeb818dc..7e7e01d878170b044b5afa86b89ea15f17fbd166 100644
--- a/examples/objective-c/route_guide/RouteGuide.podspec
+++ b/examples/objective-c/route_guide/RouteGuide.podspec
@@ -14,7 +14,7 @@ Pod::Spec.new do |s|
   src = "../../protos"
 
   # Run protoc with the Objective-C and gRPC plugins to generate protocol messages and gRPC clients.
-  s.dependency "!ProtoCompiler-gRPCPlugin", "~> 1.0.0-pre1"
+  s.dependency "!ProtoCompiler-gRPCPlugin", "~> 1.0.0-pre1.2"
 
   # Pods directory corresponding to this app's Podfile, relative to the location of this podspec.
   pods_root = 'Pods'
diff --git a/examples/php/route_guide/README.md b/examples/php/route_guide/README.md
index 4e74a79f13641d55ba6f66d893f021474a1c918f..26f1704f122cc1a9b8488d3a88130060c0e861e6 100644
--- a/examples/php/route_guide/README.md
+++ b/examples/php/route_guide/README.md
@@ -1,6 +1,6 @@
 #gRPC Basics: PHP sample code
 
 The files in this folder are the samples used in [gRPC Basics: PHP][],
-a detailed tutorial for using gRPC in Ruby.
+a detailed tutorial for using gRPC in PHP.
 
 [gRPC Basics: PHP]:http://www.grpc.io/docs/tutorials/basic/php.html
diff --git a/examples/python/route_guide/route_guide_server.py b/examples/python/route_guide/route_guide_server.py
index 4e780a70a1910cd629fa08d1b90f30448b2414de..3ffe6784768e1e0973c6540711b71df640dca0b5 100644
--- a/examples/python/route_guide/route_guide_server.py
+++ b/examples/python/route_guide/route_guide_server.py
@@ -68,7 +68,7 @@ def get_distance(start, end):
   R = 6371000; # metres
   return R * c;
 
-class RouteGuideServicer(route_guide_pb2.BetaRouteGuideServicer):
+class RouteGuideServicer(route_guide_pb2.RouteGuideServicer):
   """Provides methods that implement functionality of route guide server."""
 
   def __init__(self):
diff --git a/gRPC-ProtoRPC.podspec b/gRPC-ProtoRPC.podspec
index 741067b23f4205c6875b38dcfc41c1f8051dd3dd..f3a834304194c935619cf05b4782f37ca17192c3 100644
--- a/gRPC-ProtoRPC.podspec
+++ b/gRPC-ProtoRPC.podspec
@@ -1,9 +1,3 @@
-# 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.
 #
@@ -61,7 +55,7 @@ Pod::Spec.new do |s|
 
   s.dependency 'gRPC', version
   s.dependency 'gRPC-RxLibrary', version
-  s.dependency 'Protobuf', '~> 3.0.0-beta-3.1'
+  s.dependency 'Protobuf', '~> 3.0'
   # This is needed by all pods that depend on Protobuf:
   s.pod_target_xcconfig = {
     'GCC_PREPROCESSOR_DEFINITIONS' => '$(inherited) GPB_USE_PROTOBUF_FRAMEWORK_IMPORTS=1',
diff --git a/gRPC-RxLibrary.podspec b/gRPC-RxLibrary.podspec
index 862ed8974ba4313c53e18f8fbf7edc8447f85e30..9936d52df553a9c828df778c25bd7bc0dca74e16 100644
--- a/gRPC-RxLibrary.podspec
+++ b/gRPC-RxLibrary.podspec
@@ -1,9 +1,3 @@
-# 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.
 #
diff --git a/gRPC.podspec b/gRPC.podspec
index eda965a3280ac35cb73bace85fdcfbc308ef7667..3f6da3b141d9e43bff4d6140496a336e41bba82b 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -1,9 +1,3 @@
-# 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.
 #
diff --git a/include/grpc++/ext/reflection.pb.h b/include/grpc++/ext/reflection.pb.h
index 00d07735ee8415b4df8472e7267e0148c7124e97..bdb86197d036f2702181c79edbe3cf6a9386c324 100644
--- a/include/grpc++/ext/reflection.pb.h
+++ b/include/grpc++/ext/reflection.pb.h
@@ -83,7 +83,7 @@ class ServiceResponse;
 
 // ===================================================================
 
-class ServerReflectionRequest : public ::google::protobuf::Message {
+class ServerReflectionRequest : public ::google::protobuf::Message /* @@protoc_insertion_point(class_definition:grpc.reflection.v1alpha.ServerReflectionRequest) */ {
  public:
   ServerReflectionRequest();
   virtual ~ServerReflectionRequest();
@@ -126,7 +126,11 @@ class ServerReflectionRequest : public ::google::protobuf::Message {
       ::google::protobuf::io::CodedInputStream* input);
   void SerializeWithCachedSizes(
       ::google::protobuf::io::CodedOutputStream* output) const;
-  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* InternalSerializeWithCachedSizesToArray(
+      bool deterministic, ::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const {
+    return InternalSerializeWithCachedSizesToArray(false, output);
+  }
   int GetCachedSize() const { return _cached_size_; }
   private:
   void SharedCtor();
@@ -260,7 +264,7 @@ class ServerReflectionRequest : public ::google::protobuf::Message {
 };
 // -------------------------------------------------------------------
 
-class ExtensionRequest : public ::google::protobuf::Message {
+class ExtensionRequest : public ::google::protobuf::Message /* @@protoc_insertion_point(class_definition:grpc.reflection.v1alpha.ExtensionRequest) */ {
  public:
   ExtensionRequest();
   virtual ~ExtensionRequest();
@@ -294,7 +298,11 @@ class ExtensionRequest : public ::google::protobuf::Message {
       ::google::protobuf::io::CodedInputStream* input);
   void SerializeWithCachedSizes(
       ::google::protobuf::io::CodedOutputStream* output) const;
-  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* InternalSerializeWithCachedSizesToArray(
+      bool deterministic, ::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const {
+    return InternalSerializeWithCachedSizesToArray(false, output);
+  }
   int GetCachedSize() const { return _cached_size_; }
   private:
   void SharedCtor();
@@ -350,7 +358,7 @@ class ExtensionRequest : public ::google::protobuf::Message {
 };
 // -------------------------------------------------------------------
 
-class ServerReflectionResponse : public ::google::protobuf::Message {
+class ServerReflectionResponse : public ::google::protobuf::Message /* @@protoc_insertion_point(class_definition:grpc.reflection.v1alpha.ServerReflectionResponse) */ {
  public:
   ServerReflectionResponse();
   virtual ~ServerReflectionResponse();
@@ -392,7 +400,11 @@ class ServerReflectionResponse : public ::google::protobuf::Message {
       ::google::protobuf::io::CodedInputStream* input);
   void SerializeWithCachedSizes(
       ::google::protobuf::io::CodedOutputStream* output) const;
-  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* InternalSerializeWithCachedSizesToArray(
+      bool deterministic, ::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const {
+    return InternalSerializeWithCachedSizesToArray(false, output);
+  }
   int GetCachedSize() const { return _cached_size_; }
   private:
   void SharedCtor();
@@ -505,7 +517,7 @@ class ServerReflectionResponse : public ::google::protobuf::Message {
 };
 // -------------------------------------------------------------------
 
-class FileDescriptorResponse : public ::google::protobuf::Message {
+class FileDescriptorResponse : public ::google::protobuf::Message /* @@protoc_insertion_point(class_definition:grpc.reflection.v1alpha.FileDescriptorResponse) */ {
  public:
   FileDescriptorResponse();
   virtual ~FileDescriptorResponse();
@@ -539,7 +551,11 @@ class FileDescriptorResponse : public ::google::protobuf::Message {
       ::google::protobuf::io::CodedInputStream* input);
   void SerializeWithCachedSizes(
       ::google::protobuf::io::CodedOutputStream* output) const;
-  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* InternalSerializeWithCachedSizesToArray(
+      bool deterministic, ::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const {
+    return InternalSerializeWithCachedSizesToArray(false, output);
+  }
   int GetCachedSize() const { return _cached_size_; }
   private:
   void SharedCtor();
@@ -593,7 +609,7 @@ class FileDescriptorResponse : public ::google::protobuf::Message {
 };
 // -------------------------------------------------------------------
 
-class ExtensionNumberResponse : public ::google::protobuf::Message {
+class ExtensionNumberResponse : public ::google::protobuf::Message /* @@protoc_insertion_point(class_definition:grpc.reflection.v1alpha.ExtensionNumberResponse) */ {
  public:
   ExtensionNumberResponse();
   virtual ~ExtensionNumberResponse();
@@ -627,7 +643,11 @@ class ExtensionNumberResponse : public ::google::protobuf::Message {
       ::google::protobuf::io::CodedInputStream* input);
   void SerializeWithCachedSizes(
       ::google::protobuf::io::CodedOutputStream* output) const;
-  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* InternalSerializeWithCachedSizesToArray(
+      bool deterministic, ::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const {
+    return InternalSerializeWithCachedSizesToArray(false, output);
+  }
   int GetCachedSize() const { return _cached_size_; }
   private:
   void SharedCtor();
@@ -690,7 +710,7 @@ class ExtensionNumberResponse : public ::google::protobuf::Message {
 };
 // -------------------------------------------------------------------
 
-class ListServiceResponse : public ::google::protobuf::Message {
+class ListServiceResponse : public ::google::protobuf::Message /* @@protoc_insertion_point(class_definition:grpc.reflection.v1alpha.ListServiceResponse) */ {
  public:
   ListServiceResponse();
   virtual ~ListServiceResponse();
@@ -724,7 +744,11 @@ class ListServiceResponse : public ::google::protobuf::Message {
       ::google::protobuf::io::CodedInputStream* input);
   void SerializeWithCachedSizes(
       ::google::protobuf::io::CodedOutputStream* output) const;
-  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* InternalSerializeWithCachedSizesToArray(
+      bool deterministic, ::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const {
+    return InternalSerializeWithCachedSizesToArray(false, output);
+  }
   int GetCachedSize() const { return _cached_size_; }
   private:
   void SharedCtor();
@@ -774,7 +798,7 @@ class ListServiceResponse : public ::google::protobuf::Message {
 };
 // -------------------------------------------------------------------
 
-class ServiceResponse : public ::google::protobuf::Message {
+class ServiceResponse : public ::google::protobuf::Message /* @@protoc_insertion_point(class_definition:grpc.reflection.v1alpha.ServiceResponse) */ {
  public:
   ServiceResponse();
   virtual ~ServiceResponse();
@@ -808,7 +832,11 @@ class ServiceResponse : public ::google::protobuf::Message {
       ::google::protobuf::io::CodedInputStream* input);
   void SerializeWithCachedSizes(
       ::google::protobuf::io::CodedOutputStream* output) const;
-  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* InternalSerializeWithCachedSizesToArray(
+      bool deterministic, ::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const {
+    return InternalSerializeWithCachedSizesToArray(false, output);
+  }
   int GetCachedSize() const { return _cached_size_; }
   private:
   void SharedCtor();
@@ -857,7 +885,7 @@ class ServiceResponse : public ::google::protobuf::Message {
 };
 // -------------------------------------------------------------------
 
-class ErrorResponse : public ::google::protobuf::Message {
+class ErrorResponse : public ::google::protobuf::Message /* @@protoc_insertion_point(class_definition:grpc.reflection.v1alpha.ErrorResponse) */ {
  public:
   ErrorResponse();
   virtual ~ErrorResponse();
@@ -891,7 +919,11 @@ class ErrorResponse : public ::google::protobuf::Message {
       ::google::protobuf::io::CodedInputStream* input);
   void SerializeWithCachedSizes(
       ::google::protobuf::io::CodedOutputStream* output) const;
-  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* InternalSerializeWithCachedSizesToArray(
+      bool deterministic, ::google::protobuf::uint8* output) const;
+  ::google::protobuf::uint8* SerializeWithCachedSizesToArray(::google::protobuf::uint8* output) const {
+    return InternalSerializeWithCachedSizesToArray(false, output);
+  }
   int GetCachedSize() const { return _cached_size_; }
   private:
   void SharedCtor();
diff --git a/include/grpc/grpc.h b/include/grpc/grpc.h
index 6f7a67b715ea3c29686f6574b6df33d2229d3339..4ca018edb39ffe1ff80e463779193cc792ce0ab1 100644
--- a/include/grpc/grpc.h
+++ b/include/grpc/grpc.h
@@ -170,8 +170,9 @@ GRPCAPI void grpc_channel_watch_connectivity_state(
     completions are sent to 'completion_queue'. 'method' and 'host' need only
     live through the invocation of this function.
     If parent_call is non-NULL, it must be a server-side call. It will be used
-    to propagate properties from the server call to this new client call.
-    */
+    to propagate properties from the server call to this new client call,
+    depending on the value of \a propagation_mask (see propagation_bits.h for
+    possible values). */
 GRPCAPI grpc_call *grpc_channel_create_call(
     grpc_channel *channel, grpc_call *parent_call, uint32_t propagation_mask,
     grpc_completion_queue *completion_queue, const char *method,
@@ -187,7 +188,8 @@ GRPCAPI void *grpc_channel_register_call(grpc_channel *channel,
                                          const char *method, const char *host,
                                          void *reserved);
 
-/** Create a call given a handle returned from grpc_channel_register_call */
+/** Create a call given a handle returned from grpc_channel_register_call.
+    \sa grpc_channel_create_call. */
 GRPCAPI grpc_call *grpc_channel_create_registered_call(
     grpc_channel *channel, grpc_call *parent_call, uint32_t propagation_mask,
     grpc_completion_queue *completion_queue, void *registered_call_handle,
diff --git a/requirements.txt b/requirements.txt
index 0ec0e75b762de9d07bb3256492f40a6d569a9cef..bf87de07f894084ce57e7bd5d785a794bb4ff130 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ coverage>=4.0
 cython>=0.23
 enum34>=1.0.4
 futures>=2.2.0
-protobuf>=3.0.0a3
+protobuf>=3.0.0
 six>=1.10
-wheel>=0.29
\ No newline at end of file
+wheel>=0.29
diff --git a/setup.py b/setup.py
index cad300c144a221a5ab14b81d6343a84ea3d7f063..fb9537fccdcb0e520326d7a44d5ff2daeeed012c 100644
--- a/setup.py
+++ b/setup.py
@@ -200,7 +200,7 @@ INSTALL_REQUIRES = (
     'futures>=2.2.0',
     # TODO(atash): eventually split the grpcio package into a metapackage
     # depending on protobuf and the runtime component (independent of protobuf)
-    'protobuf>=3.0.0a3',
+    'protobuf>=3.0.0',
 )
 
 SETUP_REQUIRES = INSTALL_REQUIRES + (
diff --git a/src/compiler/node_generator.cc b/src/compiler/node_generator.cc
index c3852020a3a61c51288858821fcd6bccbc97df9e..d7af125c3aef45b091b3e92aedf44e918be31f22 100644
--- a/src/compiler/node_generator.cc
+++ b/src/compiler/node_generator.cc
@@ -114,8 +114,8 @@ map<grpc::string, const Descriptor *> GetAllMessages(
       const MethodDescriptor *method = service->method(method_num);
       const Descriptor *input_type = method->input_type();
       const Descriptor *output_type = method->output_type();
-      message_types[input_type->name()] = input_type;
-      message_types[output_type->name()] = output_type;
+      message_types[input_type->full_name()] = input_type;
+      message_types[output_type->full_name()] = output_type;
     }
   }
   return message_types;
@@ -127,7 +127,7 @@ grpc::string MessageIdentifierName(const grpc::string &name) {
 
 grpc::string NodeObjectPath(const Descriptor *descriptor) {
   grpc::string module_alias = ModuleAlias(descriptor->file()->name());
-  grpc::string name = descriptor->name();
+  grpc::string name = descriptor->full_name();
   grpc_generator::StripPrefix(&name, descriptor->file()->package() + ".");
   return module_alias + "." + name;
 }
@@ -135,8 +135,9 @@ grpc::string NodeObjectPath(const Descriptor *descriptor) {
 // Prints out the message serializer and deserializer functions
 void PrintMessageTransformer(const Descriptor *descriptor, Printer *out) {
   map<grpc::string, grpc::string> template_vars;
-  template_vars["identifier_name"] = MessageIdentifierName(descriptor->name());
-  template_vars["name"] = descriptor->name();
+  grpc::string full_name = descriptor->full_name();
+  template_vars["identifier_name"] = MessageIdentifierName(full_name);
+  template_vars["name"] = full_name;
   template_vars["node_name"] = NodeObjectPath(descriptor);
   // Print the serializer
   out->Print(template_vars, "function serialize_$identifier_name$(arg) {\n");
@@ -169,9 +170,9 @@ void PrintMethod(const MethodDescriptor *method, Printer *out) {
   vars["service_name"] = method->service()->full_name();
   vars["name"] = method->name();
   vars["input_type"] = NodeObjectPath(input_type);
-  vars["input_type_id"] = MessageIdentifierName(input_type->name());
+  vars["input_type_id"] = MessageIdentifierName(input_type->full_name());
   vars["output_type"] = NodeObjectPath(output_type);
-  vars["output_type_id"] = MessageIdentifierName(output_type->name());
+  vars["output_type_id"] = MessageIdentifierName(output_type->full_name());
   vars["client_stream"] = method->client_streaming() ? "true" : "false";
   vars["server_stream"] = method->server_streaming() ? "true" : "false";
   out->Print("{\n");
diff --git a/src/core/ext/lb_policy/grpclb/grpclb.c b/src/core/ext/lb_policy/grpclb/grpclb.c
index dec25efe6165b031ad9ac655708b043a2627be4a..af913d8a9df2e28d60904584a5dee926ca162446 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb.c
+++ b/src/core/ext/lb_policy/grpclb/grpclb.c
@@ -767,6 +767,9 @@ static lb_client_data *lb_client_data_create(glb_lb_policy *glb_policy) {
   lb_client->deadline = gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC),
                                      gpr_time_from_seconds(3, GPR_TIMESPAN));
 
+  /* Note the following LB call progresses every time there's activity in \a
+   * glb_policy->base.interested_parties, which is comprised of the polling
+   * entities passed to glb_pick(). */
   lb_client->lb_call = grpc_channel_create_pollset_set_call(
       glb_policy->lb_channel, NULL, GRPC_PROPAGATE_DEFAULTS,
       glb_policy->base.interested_parties, "/BalanceLoad",
diff --git a/src/core/lib/iomgr/tcp_server_posix.c b/src/core/lib/iomgr/tcp_server_posix.c
index 38ebd2dbcb04f9fbebcf5e9c4e613ef3fe442e03..ea8d2411547ed597be423d928a40e54eaefa1335 100644
--- a/src/core/lib/iomgr/tcp_server_posix.c
+++ b/src/core/lib/iomgr/tcp_server_posix.c
@@ -90,10 +90,12 @@ struct grpc_tcp_listener {
   grpc_closure read_closure;
   grpc_closure destroyed_closure;
   struct grpc_tcp_listener *next;
-  /* When we add a listener, more than one can be created, mainly because of
-     IPv6. A sibling will still be in the normal list, but will be flagged
-     as such. Any action, such as ref or unref, will affect all of the
-     siblings in the list. */
+  /* sibling is a linked list of all listeners for a given port. add_port and
+     clone_port place all new listeners in the same sibling list. A member of
+     the 'sibling' list is also a member of the 'next' list. The head of each
+     sibling list has is_sibling==0, and subsequent members of sibling lists
+     have is_sibling==1. is_sibling allows separate sibling lists to be
+     identified while iterating through 'next'. */
   struct grpc_tcp_listener *sibling;
   int is_sibling;
 };
@@ -306,7 +308,7 @@ static grpc_error *prepare_socket(int fd, const struct sockaddr *addr,
 
   GPR_ASSERT(fd >= 0);
 
-  if (so_reuseport) {
+  if (so_reuseport && !grpc_is_unix_socket(addr)) {
     err = grpc_set_socket_reuse_port(fd, 1);
     if (err != GRPC_ERROR_NONE) goto error;
   }
@@ -480,6 +482,9 @@ static grpc_error *add_socket_to_server(grpc_tcp_server *s, int fd,
   return err;
 }
 
+/* Insert count new listeners after listener. Every new listener will have the
+   same listen address as listener (SO_REUSEPORT must be enabled). Every new
+   listener is a sibling of listener. */
 static grpc_error *clone_port(grpc_tcp_listener *listener, unsigned count) {
   grpc_tcp_listener *sp = NULL;
   char *addr_str;
@@ -506,6 +511,11 @@ static grpc_error *clone_port(grpc_tcp_listener *listener, unsigned count) {
     sp = gpr_malloc(sizeof(grpc_tcp_listener));
     sp->next = listener->next;
     listener->next = sp;
+    /* sp (the new listener) is a sibling of 'listener' (the original
+       listener). */
+    sp->is_sibling = 1;
+    sp->sibling = listener->sibling;
+    listener->sibling = sp;
     sp->server = listener->server;
     sp->fd = fd;
     sp->emfd = grpc_fd_create(fd, name);
@@ -514,8 +524,6 @@ static grpc_error *clone_port(grpc_tcp_listener *listener, unsigned count) {
     sp->port = port;
     sp->port_index = listener->port_index;
     sp->fd_index = listener->fd_index + count - i;
-    sp->is_sibling = 1;
-    sp->sibling = listener->is_sibling ? listener->sibling : listener;
     GPR_ASSERT(sp->emfd);
     while (listener->server->tail->next != NULL) {
       listener->server->tail = listener->server->tail->next;
@@ -685,7 +693,8 @@ void grpc_tcp_server_start(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s,
   s->pollset_count = pollset_count;
   sp = s->head;
   while (sp != NULL) {
-    if (s->so_reuseport && pollset_count > 1) {
+    if (s->so_reuseport && !grpc_is_unix_socket(&sp->addr.sockaddr) &&
+        pollset_count > 1) {
       GPR_ASSERT(GRPC_LOG_IF_ERROR(
           "clone_port", clone_port(sp, (unsigned)(pollset_count - 1))));
       for (i = 0; i < pollset_count; i++) {
diff --git a/src/core/lib/surface/channel.h b/src/core/lib/surface/channel.h
index 7eff7b88836469095a77d7d22593b3a5ada7c517..4c6297434628318dd376f4606cf37747adf161b3 100644
--- a/src/core/lib/surface/channel.h
+++ b/src/core/lib/surface/channel.h
@@ -42,6 +42,14 @@ grpc_channel *grpc_channel_create(grpc_exec_ctx *exec_ctx, const char *target,
                                   grpc_channel_stack_type channel_stack_type,
                                   grpc_transport *optional_transport);
 
+/** Create a call given a grpc_channel, in order to call \a method.
+    Progress is tied to activity on \a pollset_set. The returned call object is
+    meant to be used with \a grpc_call_start_batch_and_execute, which relies on
+    callbacks to signal completions. \a method and \a host need
+    only live through the invocation of this function. If \a parent_call is
+    non-NULL, it must be a server-side call. It will be used to propagate
+    properties from the server call to this new client call, depending on the
+    value of \a propagation_mask (see propagation_bits.h for possible values) */
 grpc_call *grpc_channel_create_pollset_set_call(
     grpc_channel *channel, grpc_call *parent_call, uint32_t propagation_mask,
     grpc_pollset_set *pollset_set, const char *method, const char *host,
diff --git a/src/cpp/ext/reflection.pb.cc b/src/cpp/ext/reflection.pb.cc
index b73a65d0a02a615db7aa735c5171c1d230460cc0..a84494f9a98ed58860c21b80329845cbc25f57ec 100644
--- a/src/cpp/ext/reflection.pb.cc
+++ b/src/cpp/ext/reflection.pb.cc
@@ -98,6 +98,7 @@ const ::google::protobuf::internal::GeneratedMessageReflection*
 }  // namespace
 
 
+void protobuf_AssignDesc_reflection_2eproto() GOOGLE_ATTRIBUTE_COLD;
 void protobuf_AssignDesc_reflection_2eproto() {
   protobuf_AddDesc_reflection_2eproto();
   const ::google::protobuf::FileDescriptor* file =
@@ -253,6 +254,7 @@ inline void protobuf_AssignDescriptorsOnce() {
                  &protobuf_AssignDesc_reflection_2eproto);
 }
 
+void protobuf_RegisterTypes(const ::std::string&) GOOGLE_ATTRIBUTE_COLD;
 void protobuf_RegisterTypes(const ::std::string&) {
   protobuf_AssignDescriptorsOnce();
   ::google::protobuf::MessageFactory::InternalRegisterGeneratedMessage(
@@ -296,6 +298,7 @@ void protobuf_ShutdownFile_reflection_2eproto() {
   delete ErrorResponse_reflection_;
 }
 
+void protobuf_AddDesc_reflection_2eproto() GOOGLE_ATTRIBUTE_COLD;
 void protobuf_AddDesc_reflection_2eproto() {
   static bool already_here = false;
   if (already_here) return;
@@ -366,16 +369,6 @@ struct StaticDescriptorInitializer_reflection_2eproto {
   }
 } static_descriptor_initializer_reflection_2eproto_;
 
-namespace {
-
-static void MergeFromFail(int line) GOOGLE_ATTRIBUTE_COLD;
-static void MergeFromFail(int line) {
-  GOOGLE_CHECK(false) << __FILE__ << ":" << line;
-}
-
-}  // namespace
-
-
 // ===================================================================
 
 #if !defined(_MSC_VER) || _MSC_VER >= 1900
@@ -684,8 +677,8 @@ void ServerReflectionRequest::SerializeWithCachedSizes(
   // @@protoc_insertion_point(serialize_end:grpc.reflection.v1alpha.ServerReflectionRequest)
 }
 
-::google::protobuf::uint8* ServerReflectionRequest::SerializeWithCachedSizesToArray(
-    ::google::protobuf::uint8* target) const {
+::google::protobuf::uint8* ServerReflectionRequest::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
   // @@protoc_insertion_point(serialize_to_array_start:grpc.reflection.v1alpha.ServerReflectionRequest)
   // optional string host = 1;
   if (this->host().size() > 0) {
@@ -723,8 +716,8 @@ void ServerReflectionRequest::SerializeWithCachedSizes(
   // optional .grpc.reflection.v1alpha.ExtensionRequest file_containing_extension = 5;
   if (has_file_containing_extension()) {
     target = ::google::protobuf::internal::WireFormatLite::
-      WriteMessageNoVirtualToArray(
-        5, *message_request_.file_containing_extension_, target);
+      InternalWriteMessageNoVirtualToArray(
+        5, *message_request_.file_containing_extension_, false, target);
   }
 
   // optional string all_extension_numbers_of_type = 6;
@@ -812,7 +805,9 @@ int ServerReflectionRequest::ByteSize() const {
 
 void ServerReflectionRequest::MergeFrom(const ::google::protobuf::Message& from) {
 // @@protoc_insertion_point(generalized_merge_from_start:grpc.reflection.v1alpha.ServerReflectionRequest)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   const ServerReflectionRequest* source = 
       ::google::protobuf::internal::DynamicCastToGenerated<const ServerReflectionRequest>(
           &from);
@@ -827,7 +822,9 @@ void ServerReflectionRequest::MergeFrom(const ::google::protobuf::Message& from)
 
 void ServerReflectionRequest::MergeFrom(const ServerReflectionRequest& from) {
 // @@protoc_insertion_point(class_specific_merge_from_start:grpc.reflection.v1alpha.ServerReflectionRequest)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   switch (from.message_request_case()) {
     case kFileByFilename: {
       set_file_by_filename(from.file_by_filename());
@@ -1486,8 +1483,8 @@ void ExtensionRequest::SerializeWithCachedSizes(
   // @@protoc_insertion_point(serialize_end:grpc.reflection.v1alpha.ExtensionRequest)
 }
 
-::google::protobuf::uint8* ExtensionRequest::SerializeWithCachedSizesToArray(
-    ::google::protobuf::uint8* target) const {
+::google::protobuf::uint8* ExtensionRequest::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
   // @@protoc_insertion_point(serialize_to_array_start:grpc.reflection.v1alpha.ExtensionRequest)
   // optional string containing_type = 1;
   if (this->containing_type().size() > 0) {
@@ -1535,7 +1532,9 @@ int ExtensionRequest::ByteSize() const {
 
 void ExtensionRequest::MergeFrom(const ::google::protobuf::Message& from) {
 // @@protoc_insertion_point(generalized_merge_from_start:grpc.reflection.v1alpha.ExtensionRequest)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   const ExtensionRequest* source = 
       ::google::protobuf::internal::DynamicCastToGenerated<const ExtensionRequest>(
           &from);
@@ -1550,7 +1549,9 @@ void ExtensionRequest::MergeFrom(const ::google::protobuf::Message& from) {
 
 void ExtensionRequest::MergeFrom(const ExtensionRequest& from) {
 // @@protoc_insertion_point(class_specific_merge_from_start:grpc.reflection.v1alpha.ExtensionRequest)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   if (from.containing_type().size() > 0) {
 
     containing_type_.AssignWithDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), from.containing_type_);
@@ -1937,8 +1938,8 @@ void ServerReflectionResponse::SerializeWithCachedSizes(
   // @@protoc_insertion_point(serialize_end:grpc.reflection.v1alpha.ServerReflectionResponse)
 }
 
-::google::protobuf::uint8* ServerReflectionResponse::SerializeWithCachedSizesToArray(
-    ::google::protobuf::uint8* target) const {
+::google::protobuf::uint8* ServerReflectionResponse::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
   // @@protoc_insertion_point(serialize_to_array_start:grpc.reflection.v1alpha.ServerReflectionResponse)
   // optional string valid_host = 1;
   if (this->valid_host().size() > 0) {
@@ -1954,36 +1955,36 @@ void ServerReflectionResponse::SerializeWithCachedSizes(
   // optional .grpc.reflection.v1alpha.ServerReflectionRequest original_request = 2;
   if (this->has_original_request()) {
     target = ::google::protobuf::internal::WireFormatLite::
-      WriteMessageNoVirtualToArray(
-        2, *this->original_request_, target);
+      InternalWriteMessageNoVirtualToArray(
+        2, *this->original_request_, false, target);
   }
 
   // optional .grpc.reflection.v1alpha.FileDescriptorResponse file_descriptor_response = 4;
   if (has_file_descriptor_response()) {
     target = ::google::protobuf::internal::WireFormatLite::
-      WriteMessageNoVirtualToArray(
-        4, *message_response_.file_descriptor_response_, target);
+      InternalWriteMessageNoVirtualToArray(
+        4, *message_response_.file_descriptor_response_, false, target);
   }
 
   // optional .grpc.reflection.v1alpha.ExtensionNumberResponse all_extension_numbers_response = 5;
   if (has_all_extension_numbers_response()) {
     target = ::google::protobuf::internal::WireFormatLite::
-      WriteMessageNoVirtualToArray(
-        5, *message_response_.all_extension_numbers_response_, target);
+      InternalWriteMessageNoVirtualToArray(
+        5, *message_response_.all_extension_numbers_response_, false, target);
   }
 
   // optional .grpc.reflection.v1alpha.ListServiceResponse list_services_response = 6;
   if (has_list_services_response()) {
     target = ::google::protobuf::internal::WireFormatLite::
-      WriteMessageNoVirtualToArray(
-        6, *message_response_.list_services_response_, target);
+      InternalWriteMessageNoVirtualToArray(
+        6, *message_response_.list_services_response_, false, target);
   }
 
   // optional .grpc.reflection.v1alpha.ErrorResponse error_response = 7;
   if (has_error_response()) {
     target = ::google::protobuf::internal::WireFormatLite::
-      WriteMessageNoVirtualToArray(
-        7, *message_response_.error_response_, target);
+      InternalWriteMessageNoVirtualToArray(
+        7, *message_response_.error_response_, false, target);
   }
 
   // @@protoc_insertion_point(serialize_to_array_end:grpc.reflection.v1alpha.ServerReflectionResponse)
@@ -2049,7 +2050,9 @@ int ServerReflectionResponse::ByteSize() const {
 
 void ServerReflectionResponse::MergeFrom(const ::google::protobuf::Message& from) {
 // @@protoc_insertion_point(generalized_merge_from_start:grpc.reflection.v1alpha.ServerReflectionResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   const ServerReflectionResponse* source = 
       ::google::protobuf::internal::DynamicCastToGenerated<const ServerReflectionResponse>(
           &from);
@@ -2064,7 +2067,9 @@ void ServerReflectionResponse::MergeFrom(const ::google::protobuf::Message& from
 
 void ServerReflectionResponse::MergeFrom(const ServerReflectionResponse& from) {
 // @@protoc_insertion_point(class_specific_merge_from_start:grpc.reflection.v1alpha.ServerReflectionResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   switch (from.message_response_case()) {
     case kFileDescriptorResponse: {
       mutable_file_descriptor_response()->::grpc::reflection::v1alpha::FileDescriptorResponse::MergeFrom(from.file_descriptor_response());
@@ -2550,8 +2555,8 @@ void FileDescriptorResponse::SerializeWithCachedSizes(
   // @@protoc_insertion_point(serialize_end:grpc.reflection.v1alpha.FileDescriptorResponse)
 }
 
-::google::protobuf::uint8* FileDescriptorResponse::SerializeWithCachedSizesToArray(
-    ::google::protobuf::uint8* target) const {
+::google::protobuf::uint8* FileDescriptorResponse::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
   // @@protoc_insertion_point(serialize_to_array_start:grpc.reflection.v1alpha.FileDescriptorResponse)
   // repeated bytes file_descriptor_proto = 1;
   for (int i = 0; i < this->file_descriptor_proto_size(); i++) {
@@ -2582,7 +2587,9 @@ int FileDescriptorResponse::ByteSize() const {
 
 void FileDescriptorResponse::MergeFrom(const ::google::protobuf::Message& from) {
 // @@protoc_insertion_point(generalized_merge_from_start:grpc.reflection.v1alpha.FileDescriptorResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   const FileDescriptorResponse* source = 
       ::google::protobuf::internal::DynamicCastToGenerated<const FileDescriptorResponse>(
           &from);
@@ -2597,7 +2604,9 @@ void FileDescriptorResponse::MergeFrom(const ::google::protobuf::Message& from)
 
 void FileDescriptorResponse::MergeFrom(const FileDescriptorResponse& from) {
 // @@protoc_insertion_point(class_specific_merge_from_start:grpc.reflection.v1alpha.FileDescriptorResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   file_descriptor_proto_.MergeFrom(from.file_descriptor_proto_);
 }
 
@@ -2863,8 +2872,8 @@ void ExtensionNumberResponse::SerializeWithCachedSizes(
   // @@protoc_insertion_point(serialize_end:grpc.reflection.v1alpha.ExtensionNumberResponse)
 }
 
-::google::protobuf::uint8* ExtensionNumberResponse::SerializeWithCachedSizesToArray(
-    ::google::protobuf::uint8* target) const {
+::google::protobuf::uint8* ExtensionNumberResponse::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
   // @@protoc_insertion_point(serialize_to_array_start:grpc.reflection.v1alpha.ExtensionNumberResponse)
   // optional string base_type_name = 1;
   if (this->base_type_name().size() > 0) {
@@ -2931,7 +2940,9 @@ int ExtensionNumberResponse::ByteSize() const {
 
 void ExtensionNumberResponse::MergeFrom(const ::google::protobuf::Message& from) {
 // @@protoc_insertion_point(generalized_merge_from_start:grpc.reflection.v1alpha.ExtensionNumberResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   const ExtensionNumberResponse* source = 
       ::google::protobuf::internal::DynamicCastToGenerated<const ExtensionNumberResponse>(
           &from);
@@ -2946,7 +2957,9 @@ void ExtensionNumberResponse::MergeFrom(const ::google::protobuf::Message& from)
 
 void ExtensionNumberResponse::MergeFrom(const ExtensionNumberResponse& from) {
 // @@protoc_insertion_point(class_specific_merge_from_start:grpc.reflection.v1alpha.ExtensionNumberResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   extension_number_.MergeFrom(from.extension_number_);
   if (from.base_type_name().size() > 0) {
 
@@ -3199,14 +3212,14 @@ void ListServiceResponse::SerializeWithCachedSizes(
   // @@protoc_insertion_point(serialize_end:grpc.reflection.v1alpha.ListServiceResponse)
 }
 
-::google::protobuf::uint8* ListServiceResponse::SerializeWithCachedSizesToArray(
-    ::google::protobuf::uint8* target) const {
+::google::protobuf::uint8* ListServiceResponse::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
   // @@protoc_insertion_point(serialize_to_array_start:grpc.reflection.v1alpha.ListServiceResponse)
   // repeated .grpc.reflection.v1alpha.ServiceResponse service = 1;
   for (unsigned int i = 0, n = this->service_size(); i < n; i++) {
     target = ::google::protobuf::internal::WireFormatLite::
-      WriteMessageNoVirtualToArray(
-        1, this->service(i), target);
+      InternalWriteMessageNoVirtualToArray(
+        1, this->service(i), false, target);
   }
 
   // @@protoc_insertion_point(serialize_to_array_end:grpc.reflection.v1alpha.ListServiceResponse)
@@ -3233,7 +3246,9 @@ int ListServiceResponse::ByteSize() const {
 
 void ListServiceResponse::MergeFrom(const ::google::protobuf::Message& from) {
 // @@protoc_insertion_point(generalized_merge_from_start:grpc.reflection.v1alpha.ListServiceResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   const ListServiceResponse* source = 
       ::google::protobuf::internal::DynamicCastToGenerated<const ListServiceResponse>(
           &from);
@@ -3248,7 +3263,9 @@ void ListServiceResponse::MergeFrom(const ::google::protobuf::Message& from) {
 
 void ListServiceResponse::MergeFrom(const ListServiceResponse& from) {
 // @@protoc_insertion_point(class_specific_merge_from_start:grpc.reflection.v1alpha.ListServiceResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   service_.MergeFrom(from.service_);
 }
 
@@ -3459,8 +3476,8 @@ void ServiceResponse::SerializeWithCachedSizes(
   // @@protoc_insertion_point(serialize_end:grpc.reflection.v1alpha.ServiceResponse)
 }
 
-::google::protobuf::uint8* ServiceResponse::SerializeWithCachedSizesToArray(
-    ::google::protobuf::uint8* target) const {
+::google::protobuf::uint8* ServiceResponse::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
   // @@protoc_insertion_point(serialize_to_array_start:grpc.reflection.v1alpha.ServiceResponse)
   // optional string name = 1;
   if (this->name().size() > 0) {
@@ -3496,7 +3513,9 @@ int ServiceResponse::ByteSize() const {
 
 void ServiceResponse::MergeFrom(const ::google::protobuf::Message& from) {
 // @@protoc_insertion_point(generalized_merge_from_start:grpc.reflection.v1alpha.ServiceResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   const ServiceResponse* source = 
       ::google::protobuf::internal::DynamicCastToGenerated<const ServiceResponse>(
           &from);
@@ -3511,7 +3530,9 @@ void ServiceResponse::MergeFrom(const ::google::protobuf::Message& from) {
 
 void ServiceResponse::MergeFrom(const ServiceResponse& from) {
 // @@protoc_insertion_point(class_specific_merge_from_start:grpc.reflection.v1alpha.ServiceResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   if (from.name().size() > 0) {
 
     name_.AssignWithDefault(&::google::protobuf::internal::GetEmptyStringAlreadyInited(), from.name_);
@@ -3762,8 +3783,8 @@ void ErrorResponse::SerializeWithCachedSizes(
   // @@protoc_insertion_point(serialize_end:grpc.reflection.v1alpha.ErrorResponse)
 }
 
-::google::protobuf::uint8* ErrorResponse::SerializeWithCachedSizesToArray(
-    ::google::protobuf::uint8* target) const {
+::google::protobuf::uint8* ErrorResponse::InternalSerializeWithCachedSizesToArray(
+    bool deterministic, ::google::protobuf::uint8* target) const {
   // @@protoc_insertion_point(serialize_to_array_start:grpc.reflection.v1alpha.ErrorResponse)
   // optional int32 error_code = 1;
   if (this->error_code() != 0) {
@@ -3811,7 +3832,9 @@ int ErrorResponse::ByteSize() const {
 
 void ErrorResponse::MergeFrom(const ::google::protobuf::Message& from) {
 // @@protoc_insertion_point(generalized_merge_from_start:grpc.reflection.v1alpha.ErrorResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   const ErrorResponse* source = 
       ::google::protobuf::internal::DynamicCastToGenerated<const ErrorResponse>(
           &from);
@@ -3826,7 +3849,9 @@ void ErrorResponse::MergeFrom(const ::google::protobuf::Message& from) {
 
 void ErrorResponse::MergeFrom(const ErrorResponse& from) {
 // @@protoc_insertion_point(class_specific_merge_from_start:grpc.reflection.v1alpha.ErrorResponse)
-  if (GOOGLE_PREDICT_FALSE(&from == this)) MergeFromFail(__LINE__);
+  if (GOOGLE_PREDICT_FALSE(&from == this)) {
+    ::google::protobuf::internal::MergeFromFail(__FILE__, __LINE__);
+  }
   if (from.error_code() != 0) {
     set_error_code(from.error_code());
   }
diff --git a/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj b/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj
index f6c226567d973a38f47ea35a567da7362e419eab..d99bf8e4e1985a4010d8c185236bf82d39091524 100644
--- a/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj
+++ b/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj
@@ -40,7 +40,7 @@
       <HintPath>..\packages\NUnit.3.2.0\lib\net45\nunit.framework.dll</HintPath>
     </Reference>
     <Reference Include="System.Interactive.Async">
-      <HintPath>..\packages\Ix-Async.1.2.5\lib\net45\System.Interactive.Async.dll</HintPath>
+      <HintPath>..\packages\System.Interactive.Async.3.0.0\lib\net45\System.Interactive.Async.dll</HintPath>
     </Reference>
     <Reference Include="nunitlite">
       <HintPath>..\packages\NUnitLite.3.2.0\lib\net45\nunitlite.dll</HintPath>
@@ -108,4 +108,4 @@
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
   <ItemGroup />
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/csharp/Grpc.Core.Tests/packages.config b/src/csharp/Grpc.Core.Tests/packages.config
index 6a930c17ee60fb9a12c4a9541f5e94bde994e70c..456ffcd8d02147b62173a0f758846676a658f972 100644
--- a/src/csharp/Grpc.Core.Tests/packages.config
+++ b/src/csharp/Grpc.Core.Tests/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Ix-Async" version="1.2.5" targetFramework="net45" />
+  <package id="System.Interactive.Async" version="3.0.0" targetFramework="net45" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net45" />
   <package id="NUnit" version="3.2.0" targetFramework="net45" />
   <package id="NUnitLite" version="3.2.0" targetFramework="net45" />
diff --git a/src/csharp/Grpc.Core/Grpc.Core.csproj b/src/csharp/Grpc.Core/Grpc.Core.csproj
index 1952ee37121de6ea862772c16db5d0cc42a81742..622813fb3813680007e93186fcfdf9fbea275e16 100644
--- a/src/csharp/Grpc.Core/Grpc.Core.csproj
+++ b/src/csharp/Grpc.Core/Grpc.Core.csproj
@@ -40,7 +40,7 @@
   <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Interactive.Async">
-      <HintPath>..\packages\Ix-Async.1.2.5\lib\net45\System.Interactive.Async.dll</HintPath>
+      <HintPath>..\packages\System.Interactive.Async.3.0.0\lib\net45\System.Interactive.Async.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
@@ -152,4 +152,4 @@
       <Link>roots.pem</Link>
     </EmbeddedResource>
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/csharp/Grpc.Core/Grpc.Core.nuspec b/src/csharp/Grpc.Core/Grpc.Core.nuspec
index 543549eb2d2c6e4b058228d35d6953d8d13b48be..a8459c4d9cd557279fd283efb09146eb6c85fd4a 100644
--- a/src/csharp/Grpc.Core/Grpc.Core.nuspec
+++ b/src/csharp/Grpc.Core/Grpc.Core.nuspec
@@ -15,7 +15,7 @@
     <copyright>Copyright 2015, Google Inc.</copyright>
     <tags>gRPC RPC Protocol HTTP/2</tags>
     <dependencies>
-      <dependency id="Ix-Async" version="1.2.5" />
+      <dependency id="System.Interactive.Async" version="3.0.0" />
     </dependencies>
   </metadata>
   <files>
diff --git a/src/csharp/Grpc.Core/packages.config b/src/csharp/Grpc.Core/packages.config
index 80daf048d0b2dc2abd49a2f13740894bada802fc..6514774021756d2baab753ffa3b369dee925c9d6 100644
--- a/src/csharp/Grpc.Core/packages.config
+++ b/src/csharp/Grpc.Core/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Ix-Async" version="1.2.5" targetFramework="net45" />
+  <package id="System.Interactive.Async" version="3.0.0" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Core/project.json b/src/csharp/Grpc.Core/project.json
index 901b0ce5d03c677a4631d2b164b8d353e39267f4..f7e21a25dda9a5475cc059be6388fd4b66c8ec38 100644
--- a/src/csharp/Grpc.Core/project.json
+++ b/src/csharp/Grpc.Core/project.json
@@ -31,7 +31,7 @@
     "xmlDoc": true
   },
   "dependencies": {
-    "Ix-Async": "1.2.5"
+    "System.Interactive.Async": "3.0.0"
   },
   "frameworks": {
     "net45": { },
diff --git a/src/csharp/Grpc.Examples.MathClient/project.json b/src/csharp/Grpc.Examples.MathClient/project.json
index ad319478ab07112f9b268d491e6d3734d5da96e8..764a335ddfbd69e06811105cb5e2b07e43dd28a7 100644
--- a/src/csharp/Grpc.Examples.MathClient/project.json
+++ b/src/csharp/Grpc.Examples.MathClient/project.json
@@ -42,11 +42,6 @@
       }
     }
   },
-  "runtimes": {
-    "win7-x64": { },
-    "debian.8-x64": { },
-    "osx.10.11-x64": { }
-  },
 
   "dependencies": {
     "Grpc.Examples": {
diff --git a/src/csharp/Grpc.Examples.MathServer/project.json b/src/csharp/Grpc.Examples.MathServer/project.json
index ad319478ab07112f9b268d491e6d3734d5da96e8..764a335ddfbd69e06811105cb5e2b07e43dd28a7 100644
--- a/src/csharp/Grpc.Examples.MathServer/project.json
+++ b/src/csharp/Grpc.Examples.MathServer/project.json
@@ -42,11 +42,6 @@
       }
     }
   },
-  "runtimes": {
-    "win7-x64": { },
-    "debian.8-x64": { },
-    "osx.10.11-x64": { }
-  },
 
   "dependencies": {
     "Grpc.Examples": {
diff --git a/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj b/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj
index 4c7d89309aff8608b53b81701727fa4726756f90..c8801a94131584a2cd236d01aebabfbf095b0f0f 100644
--- a/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj
+++ b/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj
@@ -43,7 +43,7 @@
       <HintPath>..\packages\NUnit.3.2.0\lib\net45\nunit.framework.dll</HintPath>
     </Reference>
     <Reference Include="System.Interactive.Async">
-      <HintPath>..\packages\Ix-Async.1.2.5\lib\net45\System.Interactive.Async.dll</HintPath>
+      <HintPath>..\packages\System.Interactive.Async.3.0.0\lib\net45\System.Interactive.Async.dll</HintPath>
     </Reference>
     <Reference Include="nunitlite">
       <HintPath>..\packages\NUnitLite.3.2.0\lib\net45\nunitlite.dll</HintPath>
@@ -75,4 +75,4 @@
   <ItemGroup>
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/csharp/Grpc.Examples.Tests/packages.config b/src/csharp/Grpc.Examples.Tests/packages.config
index 668601af8e772a6773682ada7e0b24bdd7463721..cc473eb34c144a5f7be82d2257ad8c5ae9c9c59b 100644
--- a/src/csharp/Grpc.Examples.Tests/packages.config
+++ b/src/csharp/Grpc.Examples.Tests/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Google.Protobuf" version="3.0.0-beta3" targetFramework="net45" />
-  <package id="Ix-Async" version="1.2.5" targetFramework="net45" />
+  <package id="System.Interactive.Async" version="3.0.0" targetFramework="net45" />
   <package id="NUnit" version="3.2.0" targetFramework="net45" />
   <package id="NUnitLite" version="3.2.0" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples/Grpc.Examples.csproj b/src/csharp/Grpc.Examples/Grpc.Examples.csproj
index 3dfa84e896e26098b61e2a72ef75d30ed70d06db..4521649b6fa2271dae9c690c2bed1b72bd480edd 100644
--- a/src/csharp/Grpc.Examples/Grpc.Examples.csproj
+++ b/src/csharp/Grpc.Examples/Grpc.Examples.csproj
@@ -48,7 +48,7 @@
     <Reference Include="System.Data.Linq" />
     <Reference Include="System.Interactive.Async, Version=1.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Ix-Async.1.2.5\lib\net45\System.Interactive.Async.dll</HintPath>
+      <HintPath>..\packages\System.Interactive.Async.3.0.0\lib\net45\System.Interactive.Async.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>
@@ -72,4 +72,4 @@
     <None Include="Grpc.Examples.project.json" />
     <None Include="packages.config" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/csharp/Grpc.Examples/packages.config b/src/csharp/Grpc.Examples/packages.config
index a70dcbd4c6834abdd91daa6a8d75b0be0e293ebd..8985ae4c77227f857a373d3971504ef7e3d6c552 100644
--- a/src/csharp/Grpc.Examples/packages.config
+++ b/src/csharp/Grpc.Examples/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Google.Protobuf" version="3.0.0-beta3" targetFramework="net45" />
-  <package id="Ix-Async" version="1.2.5" targetFramework="net45" />
+  <package id="System.Interactive.Async" version="3.0.0" targetFramework="net45" />
   <package id="NUnit" version="3.2.0" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples/project.json b/src/csharp/Grpc.Examples/project.json
index 48ec530abb145c6bb099d700d4c2293d347b7f9a..5329f390e4e4ecd9f71af5540765c204ef6226cc 100644
--- a/src/csharp/Grpc.Examples/project.json
+++ b/src/csharp/Grpc.Examples/project.json
@@ -1,6 +1,11 @@
 {
   "buildOptions": {
   },
+  "runtimes": {
+    "win7-x64": { },
+    "debian.8-x64": { },
+    "osx.10.11-x64": { }
+  },
 
   "dependencies": {
     "Grpc.Core": {
diff --git a/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj
index 7db8b2d38e2b5200f567b74c3e863655a4f0ff02..e13416cc1a59abedb9e0a49523510626b14c331b 100644
--- a/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj
+++ b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj
@@ -46,7 +46,7 @@
     <Reference Include="System.Core" />
     <Reference Include="System.Interactive.Async, Version=1.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Ix-Async.1.2.5\lib\net45\System.Interactive.Async.dll</HintPath>
+      <HintPath>..\packages\System.Interactive.Async.3.0.0\lib\net45\System.Interactive.Async.dll</HintPath>
     </Reference>
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
@@ -82,4 +82,4 @@
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.nuspec b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.nuspec
index 7b3b391009eb05ca1ba9a85aceec8b829d22939b..4ffd18ccb21f155067e4f1b9ec1b8b2db40c1ee2 100644
--- a/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.nuspec
+++ b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.nuspec
@@ -16,7 +16,7 @@
 	<dependencies>
 	  <dependency id="Google.Protobuf" version="$ProtobufVersion$" />
 	  <dependency id="Grpc.Core" version="$version$" />
-	  <dependency id="Ix-Async" version="1.2.3" />
+	  <dependency id="System.Interactive.Async" version="3.0.0" />
     </dependencies>
   </metadata>
   <files>
diff --git a/src/csharp/Grpc.HealthCheck/packages.config b/src/csharp/Grpc.HealthCheck/packages.config
index a52d9e508ff85be1a1f516e5e7efff23ad6e55a2..063094f7757aaeee63618fa1378e556691519ab6 100644
--- a/src/csharp/Grpc.HealthCheck/packages.config
+++ b/src/csharp/Grpc.HealthCheck/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Google.Protobuf" version="3.0.0-beta3" targetFramework="net45" />
-  <package id="Ix-Async" version="1.2.5" targetFramework="net45" />
+  <package id="System.Interactive.Async" version="3.0.0" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json b/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json
index 287950720fe6a6cc0e4c3360bc61beb1f5e1e5f9..9afcb306b4079a48106f28e0f34ddc13e4621240 100644
--- a/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json
+++ b/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json
@@ -44,11 +44,6 @@
       }
     }
   },
-  "runtimes": {
-    "win7-x64": { },
-    "debian.8-x64": { },
-    "osx.10.11-x64": { }
-  },
 
   "dependencies": {
     "Grpc.IntegrationTesting": {
diff --git a/src/csharp/Grpc.IntegrationTesting.StressClient/project.json b/src/csharp/Grpc.IntegrationTesting.StressClient/project.json
index 287950720fe6a6cc0e4c3360bc61beb1f5e1e5f9..9afcb306b4079a48106f28e0f34ddc13e4621240 100644
--- a/src/csharp/Grpc.IntegrationTesting.StressClient/project.json
+++ b/src/csharp/Grpc.IntegrationTesting.StressClient/project.json
@@ -44,11 +44,6 @@
       }
     }
   },
-  "runtimes": {
-    "win7-x64": { },
-    "debian.8-x64": { },
-    "osx.10.11-x64": { }
-  },
 
   "dependencies": {
     "Grpc.IntegrationTesting": {
diff --git a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
index 3a0764230d6c8fd801043a3a8c428f54abe4c0e0..7512d2a5d11567e7524a460a78bf713bb96c8402 100644
--- a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
+++ b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
@@ -70,7 +70,7 @@
       <HintPath>..\packages\NUnit.3.2.0\lib\net45\nunit.framework.dll</HintPath>
     </Reference>
     <Reference Include="System.Interactive.Async">
-      <HintPath>..\packages\Ix-Async.1.2.5\lib\net45\System.Interactive.Async.dll</HintPath>
+      <HintPath>..\packages\System.Interactive.Async.3.0.0\lib\net45\System.Interactive.Async.dll</HintPath>
     </Reference>
     <Reference Include="nunitlite">
       <HintPath>..\packages\NUnitLite.3.2.0\lib\net45\nunitlite.dll</HintPath>
@@ -149,4 +149,4 @@
   <ItemGroup>
     <Service Include="{82A7F48D-3B50-4B1E-B82E-3ADA8210C358}" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/src/csharp/Grpc.IntegrationTesting/packages.config b/src/csharp/Grpc.IntegrationTesting/packages.config
index 3161c5b755780f248778003a84d171d62514dea9..e6e64e655816caadc7e0a50e81bfc1b6c9a79b1d 100644
--- a/src/csharp/Grpc.IntegrationTesting/packages.config
+++ b/src/csharp/Grpc.IntegrationTesting/packages.config
@@ -5,7 +5,7 @@
   <package id="Google.Apis.Auth" version="1.11.1" targetFramework="net45" />
   <package id="Google.Apis.Core" version="1.11.1" targetFramework="net45" />
   <package id="Google.Protobuf" version="3.0.0-beta3" targetFramework="net45" />
-  <package id="Ix-Async" version="1.2.5" targetFramework="net45" />
+  <package id="System.Interactive.Async" version="3.0.0" targetFramework="net45" />
   <package id="Moq" version="4.2.1510.2205" targetFramework="net45" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net45" />
   <package id="NUnit" version="3.2.0" targetFramework="net45" />
diff --git a/src/node/src/credentials.js b/src/node/src/credentials.js
index 043df06a669a1a66ef518af4ea55cda576dabe5c..51ff1da01ece7d27d57d8e4fd111276cfe1b5a4c 100644
--- a/src/node/src/credentials.js
+++ b/src/node/src/credentials.js
@@ -71,6 +71,8 @@ var Metadata = require('./metadata.js');
 
 var common = require('./common.js');
 
+var _ = require('lodash');
+
 /**
  * Create an SSL Credentials object. If using a client-side certificate, both
  * the second and third arguments must be passed.
@@ -99,7 +101,7 @@ exports.createFromMetadataGenerator = function(metadata_generator) {
       var message = '';
       if (error) {
         message = error.message;
-        if (error.hasOwnProperty('code')) {
+        if (error.hasOwnProperty('code') && _.isFinite(error.code)) {
           code = error.code;
         } else {
           code = grpc.status.UNAUTHENTICATED;
diff --git a/src/node/test/credentials_test.js b/src/node/test/credentials_test.js
index 0a21572582e2e62c76d21d18bed3b16f84e0345d..305843f665ed0418e8198cac7b6b9ef9300f307d 100644
--- a/src/node/test/credentials_test.js
+++ b/src/node/test/credentials_test.js
@@ -71,7 +71,10 @@ var fakeSuccessfulGoogleCredentials = {
 var fakeFailingGoogleCredentials = {
   getRequestMetadata: function(service_url, callback) {
     setTimeout(function() {
-      callback(new Error('Authentication failure'));
+      // Google credentials currently adds string error codes to auth errors
+      var error = new Error('Authentication failure');
+      error.code = 'ENOENT';
+      callback(error);
     }, 0);
   }
 };
diff --git a/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec b/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec
index 97f4f586b729d33e542100e3af68db9faaae5a90..07d62d20479f9faba4e5a3ca46d2f9322db2ca58 100644
--- a/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec
+++ b/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec
@@ -37,7 +37,7 @@ Pod::Spec.new do |s|
   # before them.
   s.name     = '!ProtoCompiler-gRPCPlugin'
   v = '1.0.0-pre1'
-  s.version  = v
+  s.version  = "#{v}.2" # .2 to depend on protoc 3.0.0
   s.summary  = 'The gRPC ProtoC plugin generates Objective-C files from .proto services.'
   s.description = <<-DESC
     This podspec only downloads the gRPC protoc plugin so that local pods generating protos can use
@@ -96,7 +96,7 @@ Pod::Spec.new do |s|
   s.preserve_paths = plugin
 
   # Restrict the protoc version to the one supported by this plugin.
-  s.dependency '!ProtoCompiler', '3.0.0-beta-3.1'
+  s.dependency '!ProtoCompiler', '3.0.0'
   # For the Protobuf dependency not to complain:
   s.ios.deployment_target = '7.1'
   s.osx.deployment_target = '10.9'
diff --git a/src/objective-c/!ProtoCompiler.podspec b/src/objective-c/!ProtoCompiler.podspec
index 56aacc3330512c2ea9a4ef38c98637ce1dfb12d7..5018dedc0669e9fadc849e89a111bb3fa930e5ad 100644
--- a/src/objective-c/!ProtoCompiler.podspec
+++ b/src/objective-c/!ProtoCompiler.podspec
@@ -36,7 +36,7 @@ Pod::Spec.new do |s|
   # exclamation mark ensures that other "regular" pods will be able to find it as it'll be installed
   # before them.
   s.name     = '!ProtoCompiler'
-  v = '3.0.0-beta-3.1'
+  v = '3.0.0'
   s.version  = v
   s.summary  = 'The Protobuf Compiler (protoc) generates Objective-C files from .proto files'
   s.description = <<-DESC
@@ -108,7 +108,7 @@ Pod::Spec.new do |s|
                      'google/**/*.proto' # Well-known protobuf types
 
   # Restrict the protobuf runtime version to the one supported by this version of protoc.
-  s.dependency 'Protobuf', v
+  s.dependency 'Protobuf', '~> 3.0'
   # For the Protobuf dependency not to complain:
   s.ios.deployment_target = '7.1'
   s.osx.deployment_target = '10.9'
@@ -120,7 +120,7 @@ Pod::Spec.new do |s|
   repo_root = '../..'
   plugin = 'grpc_objective_c_plugin'
   s.prepare_command = <<-CMD
-    if [ ! -f protoc ]; then
+    if [ ! -f bin/protoc ]; then
       cd #{repo_root}
       # This will build protoc from the Protobuf submodule of gRPC, and put it in
       # #{repo_root}/bins/opt/protobuf.
@@ -129,7 +129,9 @@ Pod::Spec.new do |s|
       # _we do not want_. Find a way for this to always build from source.
       make #{plugin}
       cd -
+    else
+      mv bin/protoc .
+      mv include/google .
     fi
   CMD
-
 end
diff --git a/src/objective-c/README.md b/src/objective-c/README.md
index 6e917ddd813bddce23e9693d47a0fffc4bb0cbb0..909b12bab2d7ef7eae6434bb448b23ac4c4c8fd4 100644
--- a/src/objective-c/README.md
+++ b/src/objective-c/README.md
@@ -48,7 +48,7 @@ Pod::Spec.new do |s|
   src = '.'
 
   # We'll use protoc with the gRPC plugin.
-  s.dependency '!ProtoCompiler-gRPCPlugin', '~> 1.0.0-pre1'
+  s.dependency '!ProtoCompiler-gRPCPlugin', '~> 1.0.0-pre1.2'
 
   # Pods directory corresponding to this app's Podfile, relative to the location of this podspec.
   pods_root = '<path to your Podfile>/Pods'
diff --git a/src/objective-c/examples/RemoteTestClient/RemoteTest.podspec b/src/objective-c/examples/RemoteTestClient/RemoteTest.podspec
index 7222a80b887e0fb4f6147ddb9ae63365d0c35edf..974a6765c705ee68225f65ad1f5bc7c17dc1d5e1 100644
--- a/src/objective-c/examples/RemoteTestClient/RemoteTest.podspec
+++ b/src/objective-c/examples/RemoteTestClient/RemoteTest.podspec
@@ -11,7 +11,7 @@ Pod::Spec.new do |s|
   s.osx.deployment_target = '10.9'
 
   # Run protoc with the Objective-C and gRPC plugins to generate protocol messages and gRPC clients.
-  s.dependency "!ProtoCompiler-gRPCPlugin", "~> 1.0.0-pre1"
+  s.dependency "!ProtoCompiler-gRPCPlugin", "~> 1.0.0-pre1.2"
 
   repo_root = '../../../..'
   bin_dir = "#{repo_root}/bins/$CONFIG"
diff --git a/src/objective-c/examples/SwiftSample/ViewController.swift b/src/objective-c/examples/SwiftSample/ViewController.swift
index e7bab137620db554e54a96ed31da10eae898df49..66d4fa9412c41d63eff499e568aa2f8adbe5c272 100644
--- a/src/objective-c/examples/SwiftSample/ViewController.swift
+++ b/src/objective-c/examples/SwiftSample/ViewController.swift
@@ -91,7 +91,7 @@ class ViewController: UIViewController {
 
     call.startWithWriteable(GRXWriteable { response, error in
       if let response = response as? NSData {
-        NSLog("3. Received response:\n\(RMTSimpleResponse(data: response, error: nil))")
+        NSLog("3. Received response:\n\(try! RMTSimpleResponse(data: response))")
       } else {
         NSLog("3. Finished with error: \(error!)")
       }
diff --git a/src/objective-c/tests/RemoteTestClient/RemoteTest.podspec b/src/objective-c/tests/RemoteTestClient/RemoteTest.podspec
index 53ba1019131391d638749dd8f8cef9d5671943f6..3d28234fa2343c0ff3aeb02a9aef05282e98f836 100644
--- a/src/objective-c/tests/RemoteTestClient/RemoteTest.podspec
+++ b/src/objective-c/tests/RemoteTestClient/RemoteTest.podspec
@@ -11,7 +11,7 @@ Pod::Spec.new do |s|
   s.osx.deployment_target = '10.9'
 
   # Run protoc with the Objective-C and gRPC plugins to generate protocol messages and gRPC clients.
-  s.dependency "!ProtoCompiler-gRPCPlugin", "~> 1.0.0-pre1"
+  s.dependency "!ProtoCompiler-gRPCPlugin", "~> 1.0.0-pre1.2"
 
   repo_root = '../../../..'
   bin_dir = "#{repo_root}/bins/$CONFIG"
diff --git a/src/python/grpcio_health_checking/setup.py b/src/python/grpcio_health_checking/setup.py
index 727d6288853d110dd5385a0d8fd513a881a71623..6074175a449d2b38a911cdc4ae51ef8f88c869c0 100644
--- a/src/python/grpcio_health_checking/setup.py
+++ b/src/python/grpcio_health_checking/setup.py
@@ -50,6 +50,7 @@ SETUP_REQUIRES = (
 )
 
 INSTALL_REQUIRES = (
+    'protobuf>=3.0.0',
     'grpcio>=0.15.0',
 )
 
diff --git a/src/python/grpcio_tests/setup.py b/src/python/grpcio_tests/setup.py
index 0afaf7dfa21833432b6fd41c30d985468e1b02a4..5c60eaca3a3dd5c1e583ccfc8d4ede9b98f37c4a 100644
--- a/src/python/grpcio_tests/setup.py
+++ b/src/python/grpcio_tests/setup.py
@@ -63,7 +63,7 @@ INSTALL_REQUIRES = (
     'grpcio>=0.14.0',
     'grpcio-health-checking>=0.14.0',
     'oauth2client>=1.4.7',
-    'protobuf>=3.0.0a3',
+    'protobuf>=3.0.0',
     'six>=1.10',
 )
 
diff --git a/templates/src/csharp/Grpc.Core/project.json.template b/templates/src/csharp/Grpc.Core/project.json.template
index bd0e8b2c138670d73162e32219c09d517c61f453..e6f8290200eede9fe5d4f780395a130ad4cf1aa2 100644
--- a/templates/src/csharp/Grpc.Core/project.json.template
+++ b/templates/src/csharp/Grpc.Core/project.json.template
@@ -33,7 +33,7 @@
       "xmlDoc": true
     },
     "dependencies": {
-      "Ix-Async": "1.2.5"
+      "System.Interactive.Async": "3.0.0"
     },
     "frameworks": {
       "net45": { },
diff --git a/templates/src/csharp/Grpc.Examples.MathClient/project.json.template b/templates/src/csharp/Grpc.Examples.MathClient/project.json.template
index 67151dbcfa8eea2511a5c860bf1630d632d84381..51c5e85c66d890bb9869b281bda5b93dfc290711 100644
--- a/templates/src/csharp/Grpc.Examples.MathClient/project.json.template
+++ b/templates/src/csharp/Grpc.Examples.MathClient/project.json.template
@@ -1,7 +1,7 @@
 %YAML 1.2
 --- |
   {
-    <%include file="../build_options.include" args="executable=True"/>
+    <%include file="../build_options.include" args="executable=True,includeRuntimes=False"/>
     "dependencies": {
       "Grpc.Examples": {
         "target": "project"
diff --git a/templates/src/csharp/Grpc.Examples.MathServer/project.json.template b/templates/src/csharp/Grpc.Examples.MathServer/project.json.template
index 67151dbcfa8eea2511a5c860bf1630d632d84381..51c5e85c66d890bb9869b281bda5b93dfc290711 100644
--- a/templates/src/csharp/Grpc.Examples.MathServer/project.json.template
+++ b/templates/src/csharp/Grpc.Examples.MathServer/project.json.template
@@ -1,7 +1,7 @@
 %YAML 1.2
 --- |
   {
-    <%include file="../build_options.include" args="executable=True"/>
+    <%include file="../build_options.include" args="executable=True,includeRuntimes=False"/>
     "dependencies": {
       "Grpc.Examples": {
         "target": "project"
diff --git a/templates/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json.template b/templates/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json.template
index 93151f2b89ebd9a814e5ecba59f9a1c8676bdef3..af1ee4250969a8ed5168d96d8498adc1b6875c46 100644
--- a/templates/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json.template
+++ b/templates/src/csharp/Grpc.IntegrationTesting.QpsWorker/project.json.template
@@ -1,7 +1,7 @@
 %YAML 1.2
 --- |
   {
-    <%include file="../build_options.include" args="executable=True,includeData=True"/>
+    <%include file="../build_options.include" args="executable=True,includeData=True,includeRuntimes=False"/>
     "dependencies": {
       "Grpc.IntegrationTesting": {
         "target": "project"
diff --git a/templates/src/csharp/Grpc.IntegrationTesting.StressClient/project.json.template b/templates/src/csharp/Grpc.IntegrationTesting.StressClient/project.json.template
index 93151f2b89ebd9a814e5ecba59f9a1c8676bdef3..af1ee4250969a8ed5168d96d8498adc1b6875c46 100644
--- a/templates/src/csharp/Grpc.IntegrationTesting.StressClient/project.json.template
+++ b/templates/src/csharp/Grpc.IntegrationTesting.StressClient/project.json.template
@@ -1,7 +1,7 @@
 %YAML 1.2
 --- |
   {
-    <%include file="../build_options.include" args="executable=True,includeData=True"/>
+    <%include file="../build_options.include" args="executable=True,includeData=True,includeRuntimes=False"/>
     "dependencies": {
       "Grpc.IntegrationTesting": {
         "target": "project"
diff --git a/templates/src/csharp/build_options.include b/templates/src/csharp/build_options.include
index 169a45a808a370ff60cce3a7511e88cff419640c..a200897e0f246c0b0149add99c1b04a7327be16e 100644
--- a/templates/src/csharp/build_options.include
+++ b/templates/src/csharp/build_options.include
@@ -1,4 +1,4 @@
-<%page args="executable=False,includeData=False"/>\
+<%page args="executable=False,includeData=False,includeRuntimes=True"/>\
 "buildOptions": {
   % if executable:
     "emitEntryPoint": true
@@ -51,6 +51,8 @@
       }
     }
   },
+  %endif
+  % if includeRuntimes:
   "runtimes": {
     "win7-x64": { },
     "debian.8-x64": { },
diff --git a/templates/tools/dockerfile/csharp_deps.include b/templates/tools/dockerfile/csharp_deps.include
index 489dc44a43622c2abb8b433223fbeb8525c72fee..7e89dec2cc2ed5e42fce4ed833713dd372eb5279 100644
--- a/templates/tools/dockerfile/csharp_deps.include
+++ b/templates/tools/dockerfile/csharp_deps.include
@@ -14,3 +14,5 @@ RUN apt-get update && apt-get -y dist-upgrade && apt-get install -y ${'\\'}
     ca-certificates-mono ${'\\'}
     nuget ${'\\'}
     && apt-get clean
+
+RUN nuget update -self
diff --git a/third_party/protobuf b/third_party/protobuf
index bdeb215cab2985195325fcd5e70c3fa751f46e0f..e8ae137c96444ea313485ed1118c5e43b2099cf1 160000
--- a/third_party/protobuf
+++ b/third_party/protobuf
@@ -1 +1 @@
-Subproject commit bdeb215cab2985195325fcd5e70c3fa751f46e0f
+Subproject commit e8ae137c96444ea313485ed1118c5e43b2099cf1
diff --git a/tools/codegen/extensions/gen_reflection_proto.sh b/tools/codegen/extensions/gen_reflection_proto.sh
index 45a1a9f4ec10fb78154a08e51d5eb4814bf32b10..bd8aac6a7b15b4689c06e2cc0d2100ab22a6b8f1 100755
--- a/tools/codegen/extensions/gen_reflection_proto.sh
+++ b/tools/codegen/extensions/gen_reflection_proto.sh
@@ -36,7 +36,7 @@ SRC_DIR="src/cpp/ext"
 INCLUDE_DIR="grpc++/ext"
 TMP_DIR="tmp"
 GRPC_PLUGIN="bins/opt/grpc_cpp_plugin"
-PROTOC=third_party/protobuf/src/protoc
+PROTOC="bins/opt/protobuf/protoc"
 
 set -e
 
diff --git a/tools/distrib/check_generated_pb_files.sh b/tools/distrib/check_generated_pb_files.sh
index 557067883c52485ccc48c6fd3d53eb4bcd58bb1a..6b93895484c81bda53cb989b76869913cc9e3a80 100755
--- a/tools/distrib/check_generated_pb_files.sh
+++ b/tools/distrib/check_generated_pb_files.sh
@@ -38,3 +38,6 @@ docker build -t grpc_check_generated_pb_files tools/dockerfile/grpc_check_genera
 
 # run check_pb_files against the checked out codebase
 docker run -e TEST=$TEST --rm=true -v ${HOST_GIT_ROOT:-`pwd`}:/var/local/jenkins/grpc -t grpc_check_generated_pb_files /var/local/jenkins/grpc/tools/dockerfile/grpc_check_generated_pb_files/check_pb_files.sh
+
+# If the test fails, please make sure your protobuf submodule is up-to-date and run
+# tools/codegen/extensions/gen_reflection_proto.sh to update the generated files.
diff --git a/tools/distrib/python/grpcio_tools/setup.py b/tools/distrib/python/grpcio_tools/setup.py
index bb1f1cf085b65e3bf06e08d51440fd7e3e37cc21..e8105992dc2af62dab15abd4a353a89447c20ff5 100644
--- a/tools/distrib/python/grpcio_tools/setup.py
+++ b/tools/distrib/python/grpcio_tools/setup.py
@@ -177,7 +177,7 @@ setuptools.setup(
   packages=setuptools.find_packages('.'),
   namespace_packages=['grpc'],
   install_requires=[
-    'protobuf>=3.0.0a3',
+    'protobuf>=3.0.0',
     'grpcio>=0.15.0',
   ],
   package_data=package_data(),
diff --git a/tools/dockerfile/interoptest/grpc_interop_csharp/Dockerfile b/tools/dockerfile/interoptest/grpc_interop_csharp/Dockerfile
index e3d52f0cb5355780fd1630d2201101e5e69125ef..087cc4e2bb4de74c198a46061484069733179649 100644
--- a/tools/dockerfile/interoptest/grpc_interop_csharp/Dockerfile
+++ b/tools/dockerfile/interoptest/grpc_interop_csharp/Dockerfile
@@ -95,6 +95,8 @@ RUN apt-get update && apt-get -y dist-upgrade && apt-get install -y \
     nuget \
     && apt-get clean
 
+RUN nuget update -self
+
 # Prepare ccache
 RUN ln -s /usr/bin/ccache /usr/local/bin/gcc
 RUN ln -s /usr/bin/ccache /usr/local/bin/g++
diff --git a/tools/dockerfile/stress_test/grpc_interop_stress_csharp/Dockerfile b/tools/dockerfile/stress_test/grpc_interop_stress_csharp/Dockerfile
index 81e3fdc38040e265d3d1ab58ab51f5994afb2891..328825392b798ef0ed780745ac602c4e0e830ef5 100644
--- a/tools/dockerfile/stress_test/grpc_interop_stress_csharp/Dockerfile
+++ b/tools/dockerfile/stress_test/grpc_interop_stress_csharp/Dockerfile
@@ -112,5 +112,7 @@ RUN apt-get update && apt-get -y dist-upgrade && apt-get install -y \
     nuget \
     && apt-get clean
 
+RUN nuget update -self
+
 # Define the default command.
 CMD ["bash"]
diff --git a/tools/dockerfile/test/csharp_coreclr_x64/Dockerfile b/tools/dockerfile/test/csharp_coreclr_x64/Dockerfile
index 25c6fe6ec6aade7e52094895d2372be185596d2f..49218151901b3c107cd9dc0fe03bbb23b97facd3 100644
--- a/tools/dockerfile/test/csharp_coreclr_x64/Dockerfile
+++ b/tools/dockerfile/test/csharp_coreclr_x64/Dockerfile
@@ -95,6 +95,8 @@ RUN apt-get update && apt-get -y dist-upgrade && apt-get install -y \
     nuget \
     && apt-get clean
 
+RUN nuget update -self
+
 
 # Install dotnet SDK based on https://www.microsoft.com/net/core#debian
 RUN apt-get update && apt-get install -y curl libunwind8 gettext
diff --git a/tools/dockerfile/test/csharp_jessie_x64/Dockerfile b/tools/dockerfile/test/csharp_jessie_x64/Dockerfile
index e3d52f0cb5355780fd1630d2201101e5e69125ef..087cc4e2bb4de74c198a46061484069733179649 100644
--- a/tools/dockerfile/test/csharp_jessie_x64/Dockerfile
+++ b/tools/dockerfile/test/csharp_jessie_x64/Dockerfile
@@ -95,6 +95,8 @@ RUN apt-get update && apt-get -y dist-upgrade && apt-get install -y \
     nuget \
     && apt-get clean
 
+RUN nuget update -self
+
 # Prepare ccache
 RUN ln -s /usr/bin/ccache /usr/local/bin/gcc
 RUN ln -s /usr/bin/ccache /usr/local/bin/g++
diff --git a/tools/dockerfile/test/multilang_jessie_x64/Dockerfile b/tools/dockerfile/test/multilang_jessie_x64/Dockerfile
index 13f7c10f92f013d977233176547bc2c99a6331d1..2540b52ec8f57e425ca4eaac92eb5805c336bdbd 100644
--- a/tools/dockerfile/test/multilang_jessie_x64/Dockerfile
+++ b/tools/dockerfile/test/multilang_jessie_x64/Dockerfile
@@ -80,6 +80,8 @@ RUN apt-get update && apt-get -y dist-upgrade && apt-get install -y \
     nuget \
     && apt-get clean
 
+RUN nuget update -self
+
 #=================
 # C++ dependencies
 RUN apt-get update && apt-get -y install libgflags-dev libgtest-dev libc++-dev clang && apt-get clean
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 542415d9085a01e32a6b9a1a98d75fe3304a1cc3..9e6ba380f1e51dbbcf5120579564711cdf1e38c7 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -701,14 +701,16 @@ class ObjCLanguage(object):
     _check_compiler(self.args.compiler, ['default'])
 
   def test_specs(self):
-    return [self.config.job_spec(['src/objective-c/tests/run_tests.sh'],
-                                 timeout_seconds=None,
-                                 shortname='objc-tests',
-                                 environ=_FORCE_ENVIRON_FOR_WRAPPERS),
-            self.config.job_spec(['src/objective-c/tests/build_example_test.sh'],
-                                 timeout_seconds=15*60,
-                                 shortname='objc-examples-build',
-                                 environ=_FORCE_ENVIRON_FOR_WRAPPERS)]
+    return [
+        self.config.job_spec(['src/objective-c/tests/run_tests.sh'],
+                              timeout_seconds=None,
+                              shortname='objc-tests',
+                              environ=_FORCE_ENVIRON_FOR_WRAPPERS),
+        self.config.job_spec(['src/objective-c/tests/build_example_test.sh'],
+                              timeout_seconds=30*60,
+                              shortname='objc-examples-build',
+                              environ=_FORCE_ENVIRON_FOR_WRAPPERS),
+    ]
 
   def pre_build_steps(self):
     return []
diff --git a/tools/run_tests/sanity/check_submodules.sh b/tools/run_tests/sanity/check_submodules.sh
index b602d695649ffa0643299bfdfdd0331e38fda1e3..04123ee5d8af54936f697a89cd46af4f9c237756 100755
--- a/tools/run_tests/sanity/check_submodules.sh
+++ b/tools/run_tests/sanity/check_submodules.sh
@@ -45,7 +45,7 @@ cat << EOF | awk '{ print $1 }' | sort > $want_submodules
  05b155ff59114735ec8cd089f669c4c3d8f59029 third_party/gflags (v2.1.0-45-g05b155f)
  c99458533a9b4c743ed51537e25989ea55944908 third_party/googletest (release-1.7.0)
  f8ac463766281625ad710900479130c7fcb4d63b third_party/nanopb (nanopb-0.3.4-29-gf8ac463)
- bdeb215cab2985195325fcd5e70c3fa751f46e0f third_party/protobuf (v3.0.0-beta-3.3)
+ e8ae137c96444ea313485ed1118c5e43b2099cf1 third_party/protobuf (v3.0.0-beta-4-74-ge8ae137)
  50893291621658f355bc5b4d450a8d06a563053d third_party/zlib (v1.2.8)
 EOF
 
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 90a22567b456691b51a01666234e2a0160cbe7c0..1206f9821c71be3cda7de96fdf811d452759cf19 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -4263,7 +4263,6 @@
       "gpr", 
       "grpc_base", 
       "grpc_lb_policy_grpclb", 
-      "grpc_lb_policy_grpclb", 
       "grpc_lb_policy_pick_first", 
       "grpc_lb_policy_round_robin", 
       "grpc_load_reporting", 
@@ -4359,7 +4358,6 @@
       "gpr", 
       "grpc_base", 
       "grpc_lb_policy_grpclb", 
-      "grpc_lb_policy_grpclb", 
       "grpc_lb_policy_pick_first", 
       "grpc_lb_policy_round_robin", 
       "grpc_load_reporting",