diff --git a/temporalio/sig/temporalio/client/connection.rbs b/temporalio/sig/temporalio/client/connection.rbs
index 083b8c1f..1e2ed35f 100644
--- a/temporalio/sig/temporalio/client/connection.rbs
+++ b/temporalio/sig/temporalio/client/connection.rbs
@@ -97,13 +97,9 @@ module Temporalio
 
       attr_reader options: Options
 
-      # TODO(cretz): Update when generated
-      # attr_reader workflow_service: WorkflowService
-      # attr_reader operator_service: OperatorService
-      # attr_reader cloud_service: CloudService
-      attr_reader workflow_service: untyped
-      attr_reader operator_service: untyped
-      attr_reader cloud_service: untyped
+      attr_reader workflow_service: WorkflowService
+      attr_reader operator_service: OperatorService
+      attr_reader cloud_service: CloudService
 
       def initialize: (
         target_host: String,
@@ -131,4 +127,4 @@ module Temporalio
       private def new_core_client: -> Internal::Bridge::Client
     end
   end
-end
\ No newline at end of file
+end
diff --git a/temporalio/sig/temporalio/client/workflow_handle.rbs b/temporalio/sig/temporalio/client/workflow_handle.rbs
index cb172f59..d1de854d 100644
--- a/temporalio/sig/temporalio/client/workflow_handle.rbs
+++ b/temporalio/sig/temporalio/client/workflow_handle.rbs
@@ -28,6 +28,7 @@ module Temporalio
 
       def fetch_history: (
         ?event_filter_type: Integer,
+        ?skip_archival: bool,
         ?rpc_options: RPCOptions?
       ) -> WorkflowHistory
 
diff --git a/temporalio/sig/temporalio/converters.rbs b/temporalio/sig/temporalio/converters.rbs
new file mode 100644
index 00000000..2e29be31
--- /dev/null
+++ b/temporalio/sig/temporalio/converters.rbs
@@ -0,0 +1,4 @@
+module Temporalio
+  module Converters
+  end
+end
diff --git a/temporalio/sig/temporalio/env_config.rbs b/temporalio/sig/temporalio/env_config.rbs
index 53290366..dbc3bfe1 100644
--- a/temporalio/sig/temporalio/env_config.rbs
+++ b/temporalio/sig/temporalio/env_config.rbs
@@ -21,7 +21,7 @@ module Temporalio
       ) -> void
 
       def to_h: -> Hash[Symbol, untyped]
-      def to_client_tls_options: -> (untyped | false)
+      def to_client_tls_options: -> (Client::Connection::TLSOptions | false)
 
       private
 
@@ -34,7 +34,7 @@ module Temporalio
       attr_reader namespace: String?
       attr_reader api_key: String?
       attr_reader tls: ClientConfigTLS?
-      attr_reader grpc_meta: Hash[untyped, untyped]
+      attr_reader grpc_meta: Hash[String, String]
 
       def self.from_h: (Hash[untyped, untyped] hash) -> ClientConfigProfile
 
@@ -52,7 +52,7 @@ module Temporalio
         ?namespace: String?,
         ?api_key: String?,
         ?tls: ClientConfigTLS?,
-        ?grpc_meta: Hash[untyped, untyped]
+        ?grpc_meta: Hash[String, String]
       ) -> void
 
       def to_h: -> Hash[Symbol, untyped]
@@ -83,4 +83,4 @@ module Temporalio
       def to_h: -> Hash[String, Hash[Symbol, untyped]]
     end
   end
-end 
\ No newline at end of file
+end
diff --git a/temporalio/sig/temporalio/internal.rbs b/temporalio/sig/temporalio/internal.rbs
new file mode 100644
index 00000000..8e825e9d
--- /dev/null
+++ b/temporalio/sig/temporalio/internal.rbs
@@ -0,0 +1,4 @@
+module Temporalio
+  module Internal
+  end
+end
diff --git a/temporalio/sig/temporalio/internal/bridge/api.rbs b/temporalio/sig/temporalio/internal/bridge/api.rbs
new file mode 100644
index 00000000..8d423010
--- /dev/null
+++ b/temporalio/sig/temporalio/internal/bridge/api.rbs
@@ -0,0 +1,8 @@
+module Temporalio
+  module Internal
+    module Bridge
+      module Api
+      end
+    end
+  end
+end
diff --git a/temporalio/sig/temporalio/internal/bridge/client.rbs b/temporalio/sig/temporalio/internal/bridge/client.rbs
index 7bf929d2..8d5cd36d 100644
--- a/temporalio/sig/temporalio/internal/bridge/client.rbs
+++ b/temporalio/sig/temporalio/internal/bridge/client.rbs
@@ -121,7 +121,7 @@ module Temporalio
         class RPCFailure < Error
           def code: -> Temporalio::Error::RPCError::Code::enum
           def message: -> String
-          def details: -> String
+          def details: -> String?
         end
 
         class CancellationToken
@@ -131,4 +131,4 @@ module Temporalio
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/temporalio/sig/temporalio/workflow/info.rbs b/temporalio/sig/temporalio/workflow/info.rbs
index e8fc4b72..5fa9bd80 100644
--- a/temporalio/sig/temporalio/workflow/info.rbs
+++ b/temporalio/sig/temporalio/workflow/info.rbs
@@ -60,7 +60,7 @@ module Temporalio
           workflow_id: String
         ) -> void
 
-        def to_h: -> Hash[Symbol, untyped]
+        def to_h: -> Hash[Symbol, String]
       end
 
       class RootInfo
@@ -72,7 +72,7 @@ module Temporalio
           workflow_id: String
         ) -> void
 
-        def to_h: -> Hash[Symbol, untyped]
+        def to_h: -> Hash[Symbol, String]
       end
     end
   end
diff --git a/temporalio/sig/temporalio/workflow/update_info.rbs b/temporalio/sig/temporalio/workflow/update_info.rbs
index 7d98f83e..0846a4c6 100644
--- a/temporalio/sig/temporalio/workflow/update_info.rbs
+++ b/temporalio/sig/temporalio/workflow/update_info.rbs
@@ -9,7 +9,7 @@ module Temporalio
         name: String
       ) -> void
 
-      def to_h: -> Hash[Symbol, untyped]
+      def to_h: -> Hash[Symbol, String]
     end
   end
 end