diff --git a/proto/lib/livebook_proto.ex b/proto/lib/livebook_proto.ex
index e282ab5db..fe00928eb 100644
--- a/proto/lib/livebook_proto.ex
+++ b/proto/lib/livebook_proto.ex
@@ -1,5 +1,6 @@
 defmodule LivebookProto do
   alias LivebookProto.{
+    AgentConnected,
     Event,
     FileSystemCreated,
     FileSystemDeleted,
@@ -10,7 +11,7 @@ defmodule LivebookProto do
     DeploymentGroupCreated,
     DeploymentGroupDeleted,
     DeploymentGroupUpdated,
-    UserSynchronized
+    UserConnected
   }
 
   @event_mapping (for {_id, field_prop} <- Event.__message_props__().field_props,
@@ -19,7 +20,8 @@ defmodule LivebookProto do
                   end)
 
   @type event_proto ::
-          FileSystemCreated.t()
+          AgentConnected.t()
+          | FileSystemCreated.t()
           | FileSystemDeleted.t()
           | FileSystemUpdated.t()
           | SecretCreated.t()
@@ -28,7 +30,7 @@ defmodule LivebookProto do
           | DeploymentGroupCreated.t()
           | DeploymentGroupDeleted.t()
           | DeploymentGroupUpdated.t()
-          | UserSynchronized.t()
+          | UserConnected.t()
 
   @doc """
   Builds an event with given data.
diff --git a/proto/lib/livebook_proto/deployment_group.pb.ex b/proto/lib/livebook_proto/deployment_group.pb.ex
index 6147b808f..5d41ac586 100644
--- a/proto/lib/livebook_proto/deployment_group.pb.ex
+++ b/proto/lib/livebook_proto/deployment_group.pb.ex
@@ -6,6 +6,6 @@ defmodule LivebookProto.DeploymentGroup do
   field :mode, 3, type: :string
   field :secrets, 4, repeated: true, type: LivebookProto.DeploymentGroupSecret
   field :clustering, 5, type: :string
-  field :zta_provider, 6, type: :string
-  field :zta_key, 7, type: :string
+  field :zta_provider, 6, type: :string, json_name: "ztaProvider"
+  field :zta_key, 7, type: :string, json_name: "ztaKey"
 end
diff --git a/proto/lib/livebook_proto/deployment_group_created.pb.ex b/proto/lib/livebook_proto/deployment_group_created.pb.ex
index 9ba545c69..24dd4f863 100644
--- a/proto/lib/livebook_proto/deployment_group_created.pb.ex
+++ b/proto/lib/livebook_proto/deployment_group_created.pb.ex
@@ -6,6 +6,6 @@ defmodule LivebookProto.DeploymentGroupCreated do
   field :mode, 3, type: :string
   field :secrets, 4, repeated: true, type: LivebookProto.DeploymentGroupSecret
   field :clustering, 5, type: :string
-  field :zta_provider, 6, type: :string
-  field :zta_key, 7, type: :string
+  field :zta_provider, 6, type: :string, json_name: "ztaProvider"
+  field :zta_key, 7, type: :string, json_name: "ztaKey"
 end
diff --git a/proto/lib/livebook_proto/deployment_group_updated.pb.ex b/proto/lib/livebook_proto/deployment_group_updated.pb.ex
index 5be1ff8f6..385b448c1 100644
--- a/proto/lib/livebook_proto/deployment_group_updated.pb.ex
+++ b/proto/lib/livebook_proto/deployment_group_updated.pb.ex
@@ -6,6 +6,6 @@ defmodule LivebookProto.DeploymentGroupUpdated do
   field :mode, 3, type: :string
   field :secrets, 4, repeated: true, type: LivebookProto.DeploymentGroupSecret
   field :clustering, 5, type: :string
-  field :zta_provider, 6, type: :string
-  field :zta_key, 7, type: :string
+  field :zta_provider, 6, type: :string, json_name: "ztaProvider"
+  field :zta_key, 7, type: :string, json_name: "ztaKey"
 end
diff --git a/proto/messages.proto b/proto/messages.proto
index 43abb4977..0b4927a30 100644
--- a/proto/messages.proto
+++ b/proto/messages.proto
@@ -59,6 +59,9 @@ message DeploymentGroup {
   string name = 2;
   string mode = 3;
   repeated DeploymentGroupSecret secrets = 4;
+  string clustering = 5;
+  string zta_provider = 6;
+  string zta_key = 7;
 }
 
 message DeploymentGroupCreated {
@@ -66,6 +69,9 @@ message DeploymentGroupCreated {
   string name = 2;
   string mode = 3;
   repeated DeploymentGroupSecret secrets = 4;
+  string clustering = 5;
+  string zta_provider = 6;
+  string zta_key = 7;
 }
 
 message DeploymentGroupUpdated {
@@ -73,6 +79,9 @@ message DeploymentGroupUpdated {
   string name = 2;
   string mode = 3;
   repeated DeploymentGroupSecret secrets = 4;
+  string clustering = 5;
+  string zta_provider = 6;
+  string zta_key = 7;
 }
 
 message DeploymentGroupDeleted {