diff --git a/CHANGELOG.md b/CHANGELOG.md
index 072de97..bfc0964 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.20.0
+
+- add support for [Zeebe 8.4.0](https://github.com/camunda/zeebe/releases/tag/8.4.0)
+
 ## 0.19.0 (June 5th, 2023)
 
 - add support for [Zeebe 8.2.5](https://github.com/camunda/zeebe/releases/tag/8.2.5)
diff --git a/README.md b/README.md
index edec899..558a664 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Install the gem:
 Run a Zeebe instance locally:
 
 ```sh
-docker run -it --rm -p 26500:26500 camunda/zeebe:8.2.5
+docker run -it --rm -p 26500:26500 camunda/zeebe:8.4.0
 ```
 
 And then try the available [demo script](examples/demo.rb).
diff --git a/Rakefile b/Rakefile
index 9b039e9..5f664fe 100644
--- a/Rakefile
+++ b/Rakefile
@@ -13,7 +13,7 @@ task ci: ['zeebe:start', :default, 'zeebe:stop']
 
 desc 'Starts Zeebe Docker container'
 task 'zeebe:start' do
-  sh 'docker run -d --name zeebe --rm -p 26500:26500 camunda/zeebe:8.2.5'
+  sh 'docker run -d --name zeebe --rm -p 26500:26500 camunda/zeebe:8.4.0'
   sleep(10)
 end
 
diff --git a/lib/zeebe/client/proto/gateway_pb.rb b/lib/zeebe/client/proto/gateway_pb.rb
index b15ed62..55c6819 100644
--- a/lib/zeebe/client/proto/gateway_pb.rb
+++ b/lib/zeebe/client/proto/gateway_pb.rb
@@ -5,7 +5,7 @@
 require 'google/protobuf'
 
 
-descriptor_data = "\n\x13proto/gateway.proto\x12\x10gateway_protocol\"\x8e\x01\n\x13\x41\x63tivateJobsRequest\x12\x0c\n\x04type\x18\x01 \x01(\t\x12\x0e\n\x06worker\x18\x02 \x01(\t\x12\x0f\n\x07timeout\x18\x03 \x01(\x03\x12\x19\n\x11maxJobsToActivate\x18\x04 \x01(\x05\x12\x15\n\rfetchVariable\x18\x05 \x03(\t\x12\x16\n\x0erequestTimeout\x18\x06 \x01(\x03\"D\n\x14\x41\x63tivateJobsResponse\x12,\n\x04jobs\x18\x01 \x03(\x0b\x32\x1e.gateway_protocol.ActivatedJob\"\xa8\x02\n\x0c\x41\x63tivatedJob\x12\x0b\n\x03key\x18\x01 \x01(\x03\x12\x0c\n\x04type\x18\x02 \x01(\t\x12\x1a\n\x12processInstanceKey\x18\x03 \x01(\x03\x12\x15\n\rbpmnProcessId\x18\x04 \x01(\t\x12 \n\x18processDefinitionVersion\x18\x05 \x01(\x05\x12\x1c\n\x14processDefinitionKey\x18\x06 \x01(\x03\x12\x11\n\telementId\x18\x07 \x01(\t\x12\x1a\n\x12\x65lementInstanceKey\x18\x08 \x01(\x03\x12\x15\n\rcustomHeaders\x18\t \x01(\t\x12\x0e\n\x06worker\x18\n \x01(\t\x12\x0f\n\x07retries\x18\x0b 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
 pool = Google::Protobuf::DescriptorPool.generated_pool
 
@@ -32,6 +32,7 @@
 end
 
 module Zeebe::Client::GatewayProtocol
+  StreamActivatedJobsRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.StreamActivatedJobsRequest").msgclass
   ActivateJobsRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.ActivateJobsRequest").msgclass
   ActivateJobsResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.ActivateJobsResponse").msgclass
   ActivatedJob = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.ActivatedJob").msgclass
@@ -60,6 +61,7 @@ module Zeebe::Client::GatewayProtocol
   ProcessMetadata = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.ProcessMetadata").msgclass
   DecisionMetadata = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.DecisionMetadata").msgclass
   DecisionRequirementsMetadata = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.DecisionRequirementsMetadata").msgclass
+  FormMetadata = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.FormMetadata").msgclass
   FailJobRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.FailJobRequest").msgclass
   FailJobResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.FailJobResponse").msgclass
   ThrowErrorRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.ThrowErrorRequest").msgclass
@@ -76,6 +78,8 @@ module Zeebe::Client::GatewayProtocol
   Partition::PartitionBrokerHealth = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.Partition.PartitionBrokerHealth").enummodule
   UpdateJobRetriesRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.UpdateJobRetriesRequest").msgclass
   UpdateJobRetriesResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.UpdateJobRetriesResponse").msgclass
+  UpdateJobTimeoutRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.UpdateJobTimeoutRequest").msgclass
+  UpdateJobTimeoutResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.UpdateJobTimeoutResponse").msgclass
   SetVariablesRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.SetVariablesRequest").msgclass
   SetVariablesResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.SetVariablesResponse").msgclass
   ModifyProcessInstanceRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.ModifyProcessInstanceRequest").msgclass
@@ -83,6 +87,10 @@ module Zeebe::Client::GatewayProtocol
   ModifyProcessInstanceRequest::VariableInstruction = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.ModifyProcessInstanceRequest.VariableInstruction").msgclass
   ModifyProcessInstanceRequest::TerminateInstruction = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.ModifyProcessInstanceRequest.TerminateInstruction").msgclass
   ModifyProcessInstanceResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.ModifyProcessInstanceResponse").msgclass
+  MigrateProcessInstanceRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.MigrateProcessInstanceRequest").msgclass
+  MigrateProcessInstanceRequest::MigrationPlan = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.MigrateProcessInstanceRequest.MigrationPlan").msgclass
+  MigrateProcessInstanceRequest::MappingInstruction = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.MigrateProcessInstanceRequest.MappingInstruction").msgclass
+  MigrateProcessInstanceResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.MigrateProcessInstanceResponse").msgclass
   DeleteResourceRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.DeleteResourceRequest").msgclass
   DeleteResourceResponse = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.DeleteResourceResponse").msgclass
   BroadcastSignalRequest = ::Google::Protobuf::DescriptorPool.generated_pool.lookup("gateway_protocol.BroadcastSignalRequest").msgclass
diff --git a/lib/zeebe/client/proto/gateway_services_pb.rb b/lib/zeebe/client/proto/gateway_services_pb.rb
index 8a053ac..0ce63fb 100644
--- a/lib/zeebe/client/proto/gateway_services_pb.rb
+++ b/lib/zeebe/client/proto/gateway_services_pb.rb
@@ -26,6 +26,15 @@ class Service
       # - maxJobsToActivate is less than 1
       rpc :ActivateJobs, ::Zeebe::Client::GatewayProtocol::ActivateJobsRequest, stream(::Zeebe::Client::GatewayProtocol::ActivateJobsResponse)
       #
+      # Registers client to a job stream that will stream jobs back to the client as
+      # they become activatable.
+      #
+      # Errors:
+      # INVALID_ARGUMENT:
+      # - type is blank (empty string, null)
+      # - timeout less than 1
+      rpc :StreamActivatedJobs, ::Zeebe::Client::GatewayProtocol::StreamActivatedJobsRequest, stream(::Zeebe::Client::GatewayProtocol::ActivatedJob)
+      #
       # Cancels a running process instance
       #
       # Errors:
@@ -96,11 +105,17 @@ class Service
       # Note that this is an atomic call, i.e. either all resources are deployed, or none of them are.
       #
       # Errors:
+      # PERMISSION_DENIED:
+      # - if a deployment to an unauthorized tenant is performed
       # INVALID_ARGUMENT:
       # - no resources given.
       # - if at least one resource is invalid. A resource is considered invalid if:
       # - the content is not deserializable (e.g. detected as BPMN, but it's broken XML)
       # - the content is invalid (e.g. an event-based gateway has an outgoing sequence flow to a task)
+      # - if multi-tenancy is enabled, and:
+      # - a tenant id is not provided
+      # - a tenant id with an invalid format is provided
+      # - if multi-tenancy is disabled and a tenant id is provided
       rpc :DeployResource, ::Zeebe::Client::GatewayProtocol::DeployResourceRequest, ::Zeebe::Client::GatewayProtocol::DeployResourceResponse
       #
       # Marks the job as failed; if the retries argument is positive, then the job will be immediately
@@ -184,6 +199,40 @@ class Service
       # - scope of variable is unknown
       rpc :ModifyProcessInstance, ::Zeebe::Client::GatewayProtocol::ModifyProcessInstanceRequest, ::Zeebe::Client::GatewayProtocol::ModifyProcessInstanceResponse
       #
+      # Migrates the process instance to the specified process definition.
+      # In simple terms, this is handled by updating the active element's process.
+      #
+      # Errors:
+      # NOT_FOUND:
+      # - no process instance exists with the given key, or it is not active
+      # - no process definition exists with the given target definition key
+      # - no process instance exists with the given key for the tenants the user is authorized to work with.
+      #
+      # FAILED_PRECONDITION:
+      # - not all active elements in the given process instance are mapped to the elements in the target process definition
+      # - a mapping instruction changes the type of an element or event
+      # - a mapping instruction refers to an unsupported element (i.e. some elements will be supported later on)
+      # - a mapping instruction refers to element in unsupported scenarios.
+      # (i.e. migration is not supported when process instance or target process elements contains event subscriptions)
+      #
+      # INVALID_ARGUMENT:
+      # - A `sourceElementId` does not refer to an element in the process instance's process definition
+      # - A `targetElementId` does not refer to an element in the target process definition
+      # - A `sourceElementId` is mapped by multiple mapping instructions.
+      # For example, the engine cannot determine how to migrate a process instance when the instructions are: [A->B, A->C].
+      rpc :MigrateProcessInstance, ::Zeebe::Client::GatewayProtocol::MigrateProcessInstanceRequest, ::Zeebe::Client::GatewayProtocol::MigrateProcessInstanceResponse
+      #
+      # Updates the deadline of a job using the timeout (in ms) provided. This can be used
+      # for extending or shortening the job deadline.
+      #
+      # Errors:
+      # NOT_FOUND:
+      # - no job exists with the given key
+      #
+      # INVALID_STATE:
+      # - no deadline exists for the given job key
+      rpc :UpdateJobTimeout, ::Zeebe::Client::GatewayProtocol::UpdateJobTimeoutRequest, ::Zeebe::Client::GatewayProtocol::UpdateJobTimeoutResponse
+      #
       # Deletes a resource from the state. Once a resource has been deleted it cannot
       # be recovered. If the resource needs to be available again, a new deployment
       # of the resource is required.
diff --git a/lib/zeebe/client/version.rb b/lib/zeebe/client/version.rb
index 30e63a7..dca97b0 100644
--- a/lib/zeebe/client/version.rb
+++ b/lib/zeebe/client/version.rb
@@ -1,6 +1,6 @@
 
 module Zeebe
   module Client
-    VERSION = '0.19.0'.freeze
+    VERSION = '0.20.0'.freeze
   end
 end
diff --git a/proto/gateway.proto b/proto/gateway.proto
index 5018582..3627eb0 100644
--- a/proto/gateway.proto
+++ b/proto/gateway.proto
@@ -8,6 +8,22 @@ option go_package = "./;pb";
 // For a more complete documentation, refer to Zeebe documentation at:
 // https://docs.camunda.io/docs/reference/grpc
 
+message StreamActivatedJobsRequest {
+  // the job type, as defined in the BPMN process (e.g. <zeebe:taskDefinition
+  // type="payment-service" />)
+  string type = 1;
+  // the name of the worker activating the jobs, mostly used for logging purposes
+  string worker = 2;
+  // a job returned after this call will not be activated by another call until the
+  // timeout (in ms) has been reached
+  int64 timeout = 3;
+  // a list of variables to fetch as the job variables; if empty, all visible variables at
+  // the time of activation for the scope of the job will be returned
+  repeated string fetchVariable = 5;
+  // a list of identifiers of tenants for which to stream jobs
+  repeated string tenantIds = 6;
+}
+
 message ActivateJobsRequest {
   // the job type, as defined in the BPMN process (e.g. <zeebe:taskDefinition
   // type="payment-service" />)
@@ -26,6 +42,8 @@ message ActivateJobsRequest {
   // if the requestTimeout = 0, a default timeout is used.
   // if the requestTimeout < 0, long polling is disabled and the request is completed immediately, even when no job is activated.
   int64 requestTimeout = 6;
+  // a list of IDs of tenants for which to activate jobs
+  repeated string tenantIds = 7;
 }
 
 message ActivateJobsResponse {
@@ -63,6 +81,8 @@ message ActivatedJob {
   // JSON document, computed at activation time, consisting of all visible variables to
   // the task scope
   string variables = 13;
+  // the id of the tenant that owns the job
+  string tenantId = 14;
 }
 
 message CancelProcessInstanceRequest {
@@ -102,6 +122,8 @@ message CreateProcessInstanceRequest {
   // will start at the start event. If non-empty the process instance will apply start
   // instructions after it has been created
   repeated ProcessInstanceCreationStartInstruction startInstructions = 5;
+  // the tenant id of the process definition
+  string tenantId = 6;
 }
 
 message ProcessInstanceCreationStartInstruction {
@@ -128,6 +150,8 @@ message CreateProcessInstanceResponse {
   // the unique identifier of the created process instance; to be used wherever a request
   // needs a process instance key (e.g. CancelProcessInstanceRequest)
   int64 processInstanceKey = 4;
+  // the tenant identifier of the created process instance
+  string tenantId = 5;
 }
 
 message CreateProcessInstanceWithResultRequest {
@@ -155,6 +179,8 @@ message CreateProcessInstanceWithResultResponse {
   // JSON document
   // consists of visible variables in the root scope
   string variables = 5;
+  // the tenant identifier of the process definition
+  string tenantId = 6;
 }
 
 message EvaluateDecisionRequest {
@@ -170,6 +196,8 @@ message EvaluateDecisionRequest {
   // [{ "a": 1, "b": 2 }] would not be a valid argument, as the root of the
   // JSON document is an array and not an object.
   string variables = 3;
+  // the tenant identifier of the decision
+  string tenantId = 4;
 }
 
 message EvaluateDecisionResponse {
@@ -199,6 +227,8 @@ message EvaluateDecisionResponse {
   string failedDecisionId = 9;
   // an optional message describing why the decision which was evaluated failed
   string failureMessage = 10;
+  // the tenant identifier of the evaluated decision
+  string tenantId = 11;
 }
 
 message EvaluatedDecision {
@@ -221,6 +251,8 @@ message EvaluatedDecision {
   repeated MatchedDecisionRule matchedRules = 7;
   // the decision inputs that were evaluated within this decision evaluation
   repeated EvaluatedDecisionInput evaluatedInputs = 8;
+  // the tenant identifier of the evaluated decision
+  string tenantId = 9;
 }
 
 message EvaluatedDecisionInput {
@@ -278,6 +310,8 @@ message DeployProcessResponse {
 message DeployResourceRequest {
   // list of resources to deploy
   repeated Resource resources = 1;
+  // the tenant id of the resources to deploy
+  string tenantId = 2;
 }
 
 message Resource {
@@ -292,6 +326,8 @@ message DeployResourceResponse {
   int64 key = 1;
   // a list of deployed resources, e.g. processes
   repeated Deployment deployments = 2;
+  // the tenant id of the deployed resources
+  string tenantId = 3;
 }
 
 message Deployment {
@@ -303,6 +339,8 @@ message Deployment {
     DecisionMetadata decision = 2;
     // metadata of a deployed decision requirements
     DecisionRequirementsMetadata decisionRequirements = 3;
+    // metadata of a deployed form
+    FormMetadata form = 4;
   }
 }
 
@@ -317,6 +355,8 @@ message ProcessMetadata {
   // the resource name (see: ProcessRequestObject.name) from which this process was
   // parsed
   string resourceName = 4;
+  // the tenant id of the deployed process
+  string tenantId = 5;
 }
 
 message DecisionMetadata {
@@ -336,6 +376,8 @@ message DecisionMetadata {
   // the assigned key of the decision requirements graph that this decision is
   // part of
   int64 decisionRequirementsKey = 6;
+  // the tenant id of the deployed decision
+  string tenantId = 7;
 }
 
 message DecisionRequirementsMetadata {
@@ -352,6 +394,22 @@ message DecisionRequirementsMetadata {
   // the resource name (see: Resource.name) from which this decision
   // requirements was parsed
   string resourceName = 5;
+  // the tenant id of the deployed decision requirements
+  string tenantId = 6;
+}
+
+message FormMetadata {
+  // the form ID, as parsed during deployment; together with the
+  // versions forms a unique identifier for a specific form
+  string formId = 1;
+  // the assigned form version
+  int32 version = 2;
+  // the assigned key, which acts as a unique identifier for this form
+  int64 formKey = 3;
+  // the resource name
+  string resourceName = 4;
+  // the tenant id of the deployed form
+  string tenantId = 5;
 }
 
 message FailJobRequest {
@@ -407,11 +465,15 @@ message PublishMessageRequest {
   // the message variables as a JSON document; to be valid, the root of the document must be an
   // object, e.g. { "a": "foo" }. [ "foo" ] would not be valid.
   string variables = 5;
+  // the tenant id of the message
+  string tenantId = 6;
 }
 
 message PublishMessageResponse {
   // the unique ID of the message that was published
   int64 key = 1;
+  // the tenant id of the message
+  string tenantId = 2;
 }
 
 message ResolveIncidentRequest {
@@ -484,6 +546,16 @@ message UpdateJobRetriesRequest {
 message UpdateJobRetriesResponse {
 }
 
+message UpdateJobTimeoutRequest {
+  // the unique job identifier, as obtained from ActivateJobsResponse
+  int64 jobKey = 1;
+  // the duration of the new timeout in ms, starting from the current moment
+  int64 timeout = 2;
+}
+
+message UpdateJobTimeoutResponse {
+}
+
 message SetVariablesRequest {
   // the unique identifier of a particular element; can be the process instance key (as
   // obtained during instance creation), or a given element, such as a service task (see
@@ -549,9 +621,34 @@ message ModifyProcessInstanceResponse {
 
 }
 
+message MigrateProcessInstanceRequest {
+  // key of the process instance to migrate
+  int64 processInstanceKey = 1;
+  // the migration plan that defines target process and element mappings
+  MigrationPlan migrationPlan = 2;
+
+  message MigrationPlan {
+    // the key of process definition to migrate the process instance to
+    int64 targetProcessDefinitionKey = 1;
+    // the mapping instructions describe how to map elements from the source process definition to the target process definition
+    repeated MappingInstruction mappingInstructions = 2;
+  }
+
+  message MappingInstruction {
+    // the element id to migrate from
+    string sourceElementId = 1;
+    // the element id to migrate into
+    string targetElementId = 2;
+  }
+}
+
+message MigrateProcessInstanceResponse {
+
+}
+
 message DeleteResourceRequest {
   // The key of the resource that should be deleted. This can either be the key
-  // of a process definition, or the key of a decision requirements definition.
+  // of a process definition, the key of a decision requirements definition or the key of a form.
   int64 resourceKey = 1;
 }
 
@@ -562,15 +659,18 @@ message DeleteResourceResponse {
 message BroadcastSignalRequest {
   // The name of the signal
   string signalName = 1;
-
   // the signal variables as a JSON document; to be valid, the root of the document must be an
   // object, e.g. { "a": "foo" }. [ "foo" ] would not be valid.
   string variables = 2;
+  // the id of the tenant that owns the signal.
+  string tenantId = 3;
 }
 
 message BroadcastSignalResponse {
   // the unique ID of the signal that was broadcasted.
   int64 key = 1;
+  // the tenant id of the signal that was broadcasted.
+  string tenantId = 2;
 }
 
 service Gateway {
@@ -588,6 +688,18 @@ service Gateway {
   rpc ActivateJobs (ActivateJobsRequest) returns (stream ActivateJobsResponse) {
   }
 
+  /*
+   Registers client to a job stream that will stream jobs back to the client as
+   they become activatable.
+
+   Errors:
+     INVALID_ARGUMENT:
+      - type is blank (empty string, null)
+      - timeout less than 1
+  */
+  rpc StreamActivatedJobs (StreamActivatedJobsRequest) returns (stream ActivatedJob) {
+  }
+
   /*
     Cancels a running process instance
 
@@ -679,11 +791,17 @@ service Gateway {
     Note that this is an atomic call, i.e. either all resources are deployed, or none of them are.
 
     Errors:
+      PERMISSION_DENIED:
+        - if a deployment to an unauthorized tenant is performed
       INVALID_ARGUMENT:
         - no resources given.
         - if at least one resource is invalid. A resource is considered invalid if:
           - the content is not deserializable (e.g. detected as BPMN, but it's broken XML)
           - the content is invalid (e.g. an event-based gateway has an outgoing sequence flow to a task)
+        - if multi-tenancy is enabled, and:
+          - a tenant id is not provided
+          - a tenant id with an invalid format is provided
+        - if multi-tenancy is disabled and a tenant id is provided
   */
   rpc DeployResource (DeployResourceRequest) returns (DeployResourceResponse) {
   }
@@ -795,6 +913,47 @@ service Gateway {
 
   }
 
+  /*
+    Migrates the process instance to the specified process definition.
+    In simple terms, this is handled by updating the active element's process.
+
+    Errors:
+      NOT_FOUND:
+        - no process instance exists with the given key, or it is not active
+        - no process definition exists with the given target definition key
+        - no process instance exists with the given key for the tenants the user is authorized to work with.
+
+      FAILED_PRECONDITION:
+        - not all active elements in the given process instance are mapped to the elements in the target process definition
+        - a mapping instruction changes the type of an element or event
+        - a mapping instruction refers to an unsupported element (i.e. some elements will be supported later on)
+        - a mapping instruction refers to element in unsupported scenarios.
+          (i.e. migration is not supported when process instance or target process elements contains event subscriptions)
+
+      INVALID_ARGUMENT:
+        - A `sourceElementId` does not refer to an element in the process instance's process definition
+        - A `targetElementId` does not refer to an element in the target process definition
+        - A `sourceElementId` is mapped by multiple mapping instructions.
+          For example, the engine cannot determine how to migrate a process instance when the instructions are: [A->B, A->C].
+   */
+  rpc MigrateProcessInstance (MigrateProcessInstanceRequest) returns (MigrateProcessInstanceResponse) {
+
+  }
+
+  /*
+  Updates the deadline of a job using the timeout (in ms) provided. This can be used
+  for extending or shortening the job deadline.
+
+  Errors:
+    NOT_FOUND:
+      - no job exists with the given key
+
+    INVALID_STATE:
+      - no deadline exists for the given job key
+ */
+  rpc UpdateJobTimeout (UpdateJobTimeoutRequest) returns (UpdateJobTimeoutResponse) {
+  }
+
   /*
     Deletes a resource from the state. Once a resource has been deleted it cannot
     be recovered. If the resource needs to be available again, a new deployment