diff --git a/api_names_out.yaml b/api_names_out.yaml
index 3fb44184c..b279cad49 100644
--- a/api_names_out.yaml
+++ b/api_names_out.yaml
@@ -170066,6 +170066,7 @@
 "/workflowexecutions:v1beta/Error": error
 "/workflowexecutions:v1beta/Error/context": context
 "/workflowexecutions:v1beta/Error/payload": payload
+"/workflowexecutions:v1beta/Error/stackTrace": stack_trace
 "/workflowexecutions:v1beta/Execution": execution
 "/workflowexecutions:v1beta/Execution/argument": argument
 "/workflowexecutions:v1beta/Execution/endTime": end_time
@@ -170079,6 +170080,14 @@
 "/workflowexecutions:v1beta/ListExecutionsResponse/executions": executions
 "/workflowexecutions:v1beta/ListExecutionsResponse/executions/execution": execution
 "/workflowexecutions:v1beta/ListExecutionsResponse/nextPageToken": next_page_token
+"/workflowexecutions:v1beta/StackTrace": stack_trace
+"/workflowexecutions:v1beta/StackTrace/elements": elements
+"/workflowexecutions:v1beta/StackTrace/elements/element": element
+"/workflowexecutions:v1beta/StackTraceElement": stack_trace_element
+"/workflowexecutions:v1beta/StackTraceElement/column": column
+"/workflowexecutions:v1beta/StackTraceElement/line": line
+"/workflowexecutions:v1beta/StackTraceElement/routine": routine
+"/workflowexecutions:v1beta/StackTraceElement/step": step
 "/workflowexecutions:v1beta/fields": fields
 "/workflowexecutions:v1beta/key": key
 "/workflowexecutions:v1beta/quotaUser": quota_user
diff --git a/generated/google-apis-workflowexecutions_v1beta/CHANGELOG.md b/generated/google-apis-workflowexecutions_v1beta/CHANGELOG.md
index b2843b196..5a17ffd57 100644
--- a/generated/google-apis-workflowexecutions_v1beta/CHANGELOG.md
+++ b/generated/google-apis-workflowexecutions_v1beta/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Release history for google-apis-workflowexecutions_v1beta
 
+### v0.2.0 (2021-01-20)
+
+* Regenerated from discovery document revision 20210105
+* Regenerated using generator version 0.1.2
+
 ### v0.1.0 (2021-01-07)
 
 * Regenerated from discovery document revision 20201208
diff --git a/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/classes.rb b/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/classes.rb
index ae7478e9c..74a30ddcc 100644
--- a/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/classes.rb
+++ b/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/classes.rb
@@ -39,16 +39,21 @@ module Google
       class Error
         include Google::Apis::Core::Hashable
       
-        # Human readable error context, helpful for debugging purposes.
+        # Human readable stack trace string.
         # Corresponds to the JSON property `context`
         # @return [String]
         attr_accessor :context
       
-        # Error payload returned by the execution, represented as a JSON string.
+        # Error message and data returned represented as a JSON string.
         # Corresponds to the JSON property `payload`
         # @return [String]
         attr_accessor :payload
       
+        # A collection of stack elements (frames) where an error occurred.
+        # Corresponds to the JSON property `stackTrace`
+        # @return [Google::Apis::WorkflowexecutionsV1beta::StackTrace]
+        attr_accessor :stack_trace
+      
         def initialize(**args)
            update!(**args)
         end
@@ -57,6 +62,7 @@ module Google
         def update!(**args)
           @context = args[:context] if args.key?(:context)
           @payload = args[:payload] if args.key?(:payload)
+          @stack_trace = args[:stack_trace] if args.key?(:stack_trace)
         end
       end
       
@@ -152,6 +158,63 @@ module Google
           @next_page_token = args[:next_page_token] if args.key?(:next_page_token)
         end
       end
+      
+      # A collection of stack elements (frames) where an error occurred.
+      class StackTrace
+        include Google::Apis::Core::Hashable
+      
+        # An array of Stack elements.
+        # Corresponds to the JSON property `elements`
+        # @return [Array<Google::Apis::WorkflowexecutionsV1beta::StackTraceElement>]
+        attr_accessor :elements
+      
+        def initialize(**args)
+           update!(**args)
+        end
+      
+        # Update properties of this object
+        def update!(**args)
+          @elements = args[:elements] if args.key?(:elements)
+        end
+      end
+      
+      # A single stack element (frame) where an error occurred.
+      class StackTraceElement
+        include Google::Apis::Core::Hashable
+      
+        # The source code column position (of the line) the current instruction was
+        # generated from.
+        # Corresponds to the JSON property `column`
+        # @return [Fixnum]
+        attr_accessor :column
+      
+        # The source code line number the current instruction was generated from.
+        # Corresponds to the JSON property `line`
+        # @return [Fixnum]
+        attr_accessor :line
+      
+        # The routine where the error occurred.
+        # Corresponds to the JSON property `routine`
+        # @return [String]
+        attr_accessor :routine
+      
+        # The step the error occurred at.
+        # Corresponds to the JSON property `step`
+        # @return [String]
+        attr_accessor :step
+      
+        def initialize(**args)
+           update!(**args)
+        end
+      
+        # Update properties of this object
+        def update!(**args)
+          @column = args[:column] if args.key?(:column)
+          @line = args[:line] if args.key?(:line)
+          @routine = args[:routine] if args.key?(:routine)
+          @step = args[:step] if args.key?(:step)
+        end
+      end
     end
   end
 end
diff --git a/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/gem_version.rb b/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/gem_version.rb
index 3006367bb..3be636304 100644
--- a/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/gem_version.rb
+++ b/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/gem_version.rb
@@ -16,13 +16,13 @@ module Google
   module Apis
     module WorkflowexecutionsV1beta
       # Version of the google-apis-workflowexecutions_v1beta gem
-      GEM_VERSION = "0.1.0"
+      GEM_VERSION = "0.2.0"
 
       # Version of the code generator used to generate this client
-      GENERATOR_VERSION = "0.1.1"
+      GENERATOR_VERSION = "0.1.2"
 
       # Revision of the discovery document this client was generated from
-      REVISION = "20201208"
+      REVISION = "20210105"
     end
   end
 end
diff --git a/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/representations.rb b/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/representations.rb
index 6fb69dcf5..f4d46083b 100644
--- a/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/representations.rb
+++ b/generated/google-apis-workflowexecutions_v1beta/lib/google/apis/workflowexecutions_v1beta/representations.rb
@@ -46,6 +46,18 @@ module Google
         include Google::Apis::Core::JsonObjectSupport
       end
       
+      class StackTrace
+        class Representation < Google::Apis::Core::JsonRepresentation; end
+      
+        include Google::Apis::Core::JsonObjectSupport
+      end
+      
+      class StackTraceElement
+        class Representation < Google::Apis::Core::JsonRepresentation; end
+      
+        include Google::Apis::Core::JsonObjectSupport
+      end
+      
       class CancelExecutionRequest
         # @private
         class Representation < Google::Apis::Core::JsonRepresentation
@@ -57,6 +69,8 @@ module Google
         class Representation < Google::Apis::Core::JsonRepresentation
           property :context, as: 'context'
           property :payload, as: 'payload'
+          property :stack_trace, as: 'stackTrace', class: Google::Apis::WorkflowexecutionsV1beta::StackTrace, decorator: Google::Apis::WorkflowexecutionsV1beta::StackTrace::Representation
+      
         end
       end
       
@@ -83,6 +97,24 @@ module Google
           property :next_page_token, as: 'nextPageToken'
         end
       end
+      
+      class StackTrace
+        # @private
+        class Representation < Google::Apis::Core::JsonRepresentation
+          collection :elements, as: 'elements', class: Google::Apis::WorkflowexecutionsV1beta::StackTraceElement, decorator: Google::Apis::WorkflowexecutionsV1beta::StackTraceElement::Representation
+      
+        end
+      end
+      
+      class StackTraceElement
+        # @private
+        class Representation < Google::Apis::Core::JsonRepresentation
+          property :column, :numeric_string => true, as: 'column'
+          property :line, :numeric_string => true, as: 'line'
+          property :routine, as: 'routine'
+          property :step, as: 'step'
+        end
+      end
     end
   end
 end
diff --git a/generated/google-apis-workflowexecutions_v1beta/synth.metadata b/generated/google-apis-workflowexecutions_v1beta/synth.metadata
index 535d0881c..7609dc5a0 100644
--- a/generated/google-apis-workflowexecutions_v1beta/synth.metadata
+++ b/generated/google-apis-workflowexecutions_v1beta/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/google-api-ruby-client.git",
-        "sha": "6de8b4ee653db67c0e789203767a89b32fcf8a51"
+        "sha": "f97fcbff67403fd08d732ab757da667ca9174a8e"
       }
     }
   ]