diff --git a/etc/repos.json b/etc/repos.json
index 54808ca7..c28134ff 100644
--- a/etc/repos.json
+++ b/etc/repos.json
@@ -268,11 +268,11 @@
   , "bazel_remote_apis":
     { "repository":
       { "type": "archive"
-      , "content": "b5deb95d544f03f1918cc9d611c7904b8173befa"
-      , "fetch": "https://github.com/bazelbuild/remote-apis/archive/v2.0.0.tar.gz"
-      , "sha256": "79204ed1fa385c03b5235f65b25ced6ac51cf4b00e45e1157beca6a28bdb8043"
-      , "sha512": "7465f4726a9cc263352f6f0ec5b065c53e2ad787611740e1a458331858bdf28d53d69ba3db3d83fbf4a578229a413ac230886b5fcd33ab76425c61b1f08ef3b3"
-      , "subdir": "remote-apis-2.0.0"
+      , "content": "da6d7d589ccd1924ba9840a4e329e438dfa27f86"
+      , "fetch": "https://github.com/bazelbuild/remote-apis/archive/e1fe21be4c9ae76269a5a63215bb3c72ed9ab3f0.tar.gz"
+      , "sha256": "7421abd5352ccf927c2050453a4dbfa1f7b1c7170ec3e8702b6fe2d39b8805fe"
+      , "sha512": "3042690ee4b17a27db92ca867b4225c25f3f16344dce5fe86695d72ddda531e1593a5f0f70a291283451ce1e9f606c2285d222df3787815cd8f4054e1113bc9d"
+      , "subdir": "remote-apis-e1fe21be4c9ae76269a5a63215bb3c72ed9ab3f0"
       }
     , "target_root": "import targets"
     , "target_file_name": "TARGETS.bazel_remote_apis"
diff --git a/src/buildtool/execution_api/bazel_msg/bazel_msg_factory.cpp b/src/buildtool/execution_api/bazel_msg/bazel_msg_factory.cpp
index 12f7398f..9104b94d 100644
--- a/src/buildtool/execution_api/bazel_msg/bazel_msg_factory.cpp
+++ b/src/buildtool/execution_api/bazel_msg/bazel_msg_factory.cpp
@@ -211,9 +211,10 @@ template <class T>
     copy_nodes(dir.mutable_directories(), dirs);
     copy_nodes(dir.mutable_symlinks(), links);
 
-    std::copy(props.cbegin(),
-              props.cend(),
-              pb::back_inserter(dir.mutable_node_properties()));
+    std::copy(
+        props.cbegin(),
+        props.cend(),
+        pb::back_inserter(dir.mutable_node_properties()->mutable_properties()));
 
     return dir;
 }
@@ -229,7 +230,8 @@ template <class T>
     node.set_is_executable(IsExecutableObject(type));
     std::copy(props.cbegin(),
               props.cend(),
-              pb::back_inserter(node.mutable_node_properties()));
+              pb::back_inserter(
+                  node.mutable_node_properties()->mutable_properties()));
     return node;
 }
 
@@ -252,7 +254,8 @@ template <class T>
     node.set_target(target);
     std::copy(props.cbegin(),
               props.cend(),
-              pb::back_inserter(node.mutable_node_properties()));
+              pb::back_inserter(
+                  node.mutable_node_properties()->mutable_properties()));
     return node;
 }
 
@@ -322,6 +325,10 @@ template <class T>
     std::vector<bazel_re::Platform_Property> const& platform_properties)
     -> CommandBundle::Ptr {
     bazel_re::Command msg;
+    // DEPRECATED as of v2.2: platform properties are now specified
+    // directly in the action. See documentation note in the
+    // [Action][build.bazel.remote.execution.v2.Action] for migration.
+    // (https://github.com/bazelbuild/remote-apis/blob/e1fe21be4c9ae76269a5a63215bb3c72ed9ab3f0/build/bazel/remote/execution/v2/remote_execution.proto#L646)
     msg.set_allocated_platform(CreatePlatform(platform_properties).release());
     std::copy(std::cbegin(args),
               std::cend(args),
@@ -349,7 +356,7 @@ template <class T>
 [[nodiscard]] auto CreateActionBundle(
     bazel_re::Digest const& command,
     bazel_re::Digest const& root_dir,
-    std::vector<std::string> const& output_node_properties,
+    std::vector<bazel_re::Platform_Property> const& platform_properties,
     bool do_not_cache,
     std::chrono::milliseconds const& timeout) -> ActionBundle::Ptr {
     using seconds = std::chrono::seconds;
@@ -368,9 +375,12 @@ template <class T>
         gsl::owner<bazel_re::Digest*>{new bazel_re::Digest{command}});
     msg.set_allocated_input_root_digest(
         gsl::owner<bazel_re::Digest*>{new bazel_re::Digest{root_dir}});
-    std::copy(output_node_properties.cbegin(),
-              output_node_properties.cend(),
-              pb::back_inserter(msg.mutable_output_node_properties()));
+    // New in version 2.2: clients SHOULD set these platform properties
+    // as well as those in the
+    // [Command][build.bazel.remote.execution.v2.Command]. Servers
+    // SHOULD prefer those set here.
+    // (https://github.com/bazelbuild/remote-apis/blob/e1fe21be4c9ae76269a5a63215bb3c72ed9ab3f0/build/bazel/remote/execution/v2/remote_execution.proto#L516)
+    msg.set_allocated_platform(CreatePlatform(platform_properties).release());
 
     auto content_creator = [&msg] { return SerializeMessage(msg); };
 
@@ -728,7 +738,6 @@ auto BazelMsgFactory::CreateActionDigestFromCommandLine(
     bazel_re::Digest const& exec_dir,
     std::vector<std::string> const& output_files,
     std::vector<std::string> const& output_dirs,
-    std::vector<std::string> const& output_node_properties,
     std::vector<bazel_re::Command_EnvironmentVariable> const& env_vars,
     std::vector<bazel_re::Platform_Property> const& properties,
     bool do_not_cache,
@@ -740,7 +749,7 @@ auto BazelMsgFactory::CreateActionDigestFromCommandLine(
 
     // create action
     auto action = CreateActionBundle(
-        cmd->Digest(), exec_dir, output_node_properties, do_not_cache, timeout);
+        cmd->Digest(), exec_dir, properties, do_not_cache, timeout);
 
     if (store_blob) {
         (*store_blob)(cmd->MakeBlob(/*is_exec=*/false));
diff --git a/src/buildtool/execution_api/bazel_msg/bazel_msg_factory.hpp b/src/buildtool/execution_api/bazel_msg/bazel_msg_factory.hpp
index ca913c63..f27f246f 100644
--- a/src/buildtool/execution_api/bazel_msg/bazel_msg_factory.hpp
+++ b/src/buildtool/execution_api/bazel_msg/bazel_msg_factory.hpp
@@ -127,7 +127,6 @@ class BazelMsgFactory {
         bazel_re::Digest const& exec_dir,
         std::vector<std::string> const& output_files,
         std::vector<std::string> const& output_dirs,
-        std::vector<std::string> const& output_node_properties,
         std::vector<bazel_re::Command_EnvironmentVariable> const& env_vars,
         std::vector<bazel_re::Platform_Property> const& properties,
         bool do_not_cache,
diff --git a/src/buildtool/execution_api/execution_service/capabilities_server.cpp b/src/buildtool/execution_api/execution_service/capabilities_server.cpp
index ea480301..35126bd3 100644
--- a/src/buildtool/execution_api/execution_service/capabilities_server.cpp
+++ b/src/buildtool/execution_api/execution_service/capabilities_server.cpp
@@ -30,7 +30,7 @@ auto CapabilitiesServiceImpl::GetCapabilities(
     ::bazel_re::CacheCapabilities cache;
     ::bazel_re::ExecutionCapabilities exec;
 
-    cache.add_digest_function(
+    cache.add_digest_functions(
         ::bazel_re::DigestFunction_Value::DigestFunction_Value_SHA256);
     cache.mutable_action_cache_update_capabilities()->set_update_enabled(false);
     static constexpr std::size_t kMaxBatchTransferSize = 1024 * 1024;
diff --git a/src/buildtool/execution_api/local/local_action.hpp b/src/buildtool/execution_api/local/local_action.hpp
index 95f95ff4..82101016 100644
--- a/src/buildtool/execution_api/local/local_action.hpp
+++ b/src/buildtool/execution_api/local/local_action.hpp
@@ -91,7 +91,6 @@ class LocalAction final : public IExecutionAction {
             exec_dir,
             output_files_,
             output_dirs_,
-            {} /*FIXME output node properties*/,
             BazelMsgFactory::CreateMessageVectorFromMap<
                 bazel_re::Command_EnvironmentVariable>(env_vars_),
             properties_,
diff --git a/src/buildtool/execution_api/remote/bazel/bazel_action.cpp b/src/buildtool/execution_api/remote/bazel/bazel_action.cpp
index d7f9f389..04d4c3f7 100644
--- a/src/buildtool/execution_api/remote/bazel/bazel_action.cpp
+++ b/src/buildtool/execution_api/remote/bazel/bazel_action.cpp
@@ -91,7 +91,6 @@ auto BazelAction::CreateBundlesForAction(BlobContainer* blobs,
         exec_dir,
         output_files_,
         output_dirs_,
-        {} /*FIXME output node properties*/,
         env_vars_,
         properties_,
         do_not_cache,