diff --git a/pkg/internal/oas_client_gen.go b/pkg/internal/oas_client_gen.go
index 3a33e68..78d4f40 100644
--- a/pkg/internal/oas_client_gen.go
+++ b/pkg/internal/oas_client_gen.go
@@ -34,6 +34,12 @@ type Invoker interface {
 	//
 	// POST /mapfixes/{MapfixID}/status/validator-failed
 	ActionMapfixAccepted(ctx context.Context, params ActionMapfixAcceptedParams) error
+	// ActionMapfixRequestChanges invokes actionMapfixRequestChanges operation.
+	//
+	// (Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested.
+	//
+	// POST /mapfixes/{MapfixID}/status/validator-request-changes
+	ActionMapfixRequestChanges(ctx context.Context, params ActionMapfixRequestChangesParams) error
 	// ActionMapfixSubmitted invokes actionMapfixSubmitted operation.
 	//
 	// (Internal endpoint) Role Validator changes status from Submitting -> Submitted.
@@ -64,6 +70,12 @@ type Invoker interface {
 	//
 	// POST /submissions/{SubmissionID}/status/validator-failed
 	ActionSubmissionAccepted(ctx context.Context, params ActionSubmissionAcceptedParams) error
+	// ActionSubmissionRequestChanges invokes actionSubmissionRequestChanges operation.
+	//
+	// (Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested.
+	//
+	// POST /submissions/{SubmissionID}/status/validator-request-changes
+	ActionSubmissionRequestChanges(ctx context.Context, params ActionSubmissionRequestChangesParams) error
 	// ActionSubmissionSubmitted invokes actionSubmissionSubmitted operation.
 	//
 	// (Internal endpoint) Role Validator changes status from Submitting -> Submitted.
@@ -294,6 +306,115 @@ func (c *Client) sendActionMapfixAccepted(ctx context.Context, params ActionMapf
 	return result, nil
 }
 
+// ActionMapfixRequestChanges invokes actionMapfixRequestChanges operation.
+//
+// (Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested.
+//
+// POST /mapfixes/{MapfixID}/status/validator-request-changes
+func (c *Client) ActionMapfixRequestChanges(ctx context.Context, params ActionMapfixRequestChangesParams) error {
+	_, err := c.sendActionMapfixRequestChanges(ctx, params)
+	return err
+}
+
+func (c *Client) sendActionMapfixRequestChanges(ctx context.Context, params ActionMapfixRequestChangesParams) (res *ActionMapfixRequestChangesNoContent, err error) {
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("actionMapfixRequestChanges"),
+		semconv.HTTPRequestMethodKey.String("POST"),
+		semconv.HTTPRouteKey.String("/mapfixes/{MapfixID}/status/validator-request-changes"),
+	}
+
+	// Run stopwatch.
+	startTime := time.Now()
+	defer func() {
+		// Use floating point division here for higher precision (instead of Millisecond method).
+		elapsedDuration := time.Since(startTime)
+		c.duration.Record(ctx, float64(elapsedDuration)/float64(time.Millisecond), metric.WithAttributes(otelAttrs...))
+	}()
+
+	// Increment request counter.
+	c.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
+
+	// Start a span for this request.
+	ctx, span := c.cfg.Tracer.Start(ctx, ActionMapfixRequestChangesOperation,
+		trace.WithAttributes(otelAttrs...),
+		clientSpanKind,
+	)
+	// Track stage for error reporting.
+	var stage string
+	defer func() {
+		if err != nil {
+			span.RecordError(err)
+			span.SetStatus(codes.Error, stage)
+			c.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
+		}
+		span.End()
+	}()
+
+	stage = "BuildURL"
+	u := uri.Clone(c.requestURL(ctx))
+	var pathParts [3]string
+	pathParts[0] = "/mapfixes/"
+	{
+		// Encode "MapfixID" parameter.
+		e := uri.NewPathEncoder(uri.PathEncoderConfig{
+			Param:   "MapfixID",
+			Style:   uri.PathStyleSimple,
+			Explode: false,
+		})
+		if err := func() error {
+			return e.EncodeValue(conv.Int64ToString(params.MapfixID))
+		}(); err != nil {
+			return res, errors.Wrap(err, "encode path")
+		}
+		encoded, err := e.Result()
+		if err != nil {
+			return res, errors.Wrap(err, "encode path")
+		}
+		pathParts[1] = encoded
+	}
+	pathParts[2] = "/status/validator-request-changes"
+	uri.AddPathParts(u, pathParts[:]...)
+
+	stage = "EncodeQueryParams"
+	q := uri.NewQueryEncoder()
+	{
+		// Encode "StatusMessage" parameter.
+		cfg := uri.QueryParameterEncodingConfig{
+			Name:    "StatusMessage",
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		}
+
+		if err := q.EncodeParam(cfg, func(e uri.Encoder) error {
+			return e.EncodeValue(conv.StringToString(params.StatusMessage))
+		}); err != nil {
+			return res, errors.Wrap(err, "encode query")
+		}
+	}
+	u.RawQuery = q.Values().Encode()
+
+	stage = "EncodeRequest"
+	r, err := ht.NewRequest(ctx, "POST", u)
+	if err != nil {
+		return res, errors.Wrap(err, "create request")
+	}
+
+	stage = "SendRequest"
+	resp, err := c.cfg.Client.Do(r)
+	if err != nil {
+		return res, errors.Wrap(err, "do request")
+	}
+	defer resp.Body.Close()
+
+	stage = "DecodeResponse"
+	result, err := decodeActionMapfixRequestChangesResponse(resp)
+	if err != nil {
+		return res, errors.Wrap(err, "decode response")
+	}
+
+	return result, nil
+}
+
 // ActionMapfixSubmitted invokes actionMapfixSubmitted operation.
 //
 // (Internal endpoint) Role Validator changes status from Submitting -> Submitted.
@@ -363,6 +484,24 @@ func (c *Client) sendActionMapfixSubmitted(ctx context.Context, params ActionMap
 	pathParts[2] = "/status/validator-submitted"
 	uri.AddPathParts(u, pathParts[:]...)
 
+	stage = "EncodeQueryParams"
+	q := uri.NewQueryEncoder()
+	{
+		// Encode "ModelVersion" parameter.
+		cfg := uri.QueryParameterEncodingConfig{
+			Name:    "ModelVersion",
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		}
+
+		if err := q.EncodeParam(cfg, func(e uri.Encoder) error {
+			return e.EncodeValue(conv.Int64ToString(params.ModelVersion))
+		}); err != nil {
+			return res, errors.Wrap(err, "encode query")
+		}
+	}
+	u.RawQuery = q.Values().Encode()
+
 	stage = "EncodeRequest"
 	r, err := ht.NewRequest(ctx, "POST", u)
 	if err != nil {
@@ -785,6 +924,115 @@ func (c *Client) sendActionSubmissionAccepted(ctx context.Context, params Action
 	return result, nil
 }
 
+// ActionSubmissionRequestChanges invokes actionSubmissionRequestChanges operation.
+//
+// (Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested.
+//
+// POST /submissions/{SubmissionID}/status/validator-request-changes
+func (c *Client) ActionSubmissionRequestChanges(ctx context.Context, params ActionSubmissionRequestChangesParams) error {
+	_, err := c.sendActionSubmissionRequestChanges(ctx, params)
+	return err
+}
+
+func (c *Client) sendActionSubmissionRequestChanges(ctx context.Context, params ActionSubmissionRequestChangesParams) (res *ActionSubmissionRequestChangesNoContent, err error) {
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("actionSubmissionRequestChanges"),
+		semconv.HTTPRequestMethodKey.String("POST"),
+		semconv.HTTPRouteKey.String("/submissions/{SubmissionID}/status/validator-request-changes"),
+	}
+
+	// Run stopwatch.
+	startTime := time.Now()
+	defer func() {
+		// Use floating point division here for higher precision (instead of Millisecond method).
+		elapsedDuration := time.Since(startTime)
+		c.duration.Record(ctx, float64(elapsedDuration)/float64(time.Millisecond), metric.WithAttributes(otelAttrs...))
+	}()
+
+	// Increment request counter.
+	c.requests.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
+
+	// Start a span for this request.
+	ctx, span := c.cfg.Tracer.Start(ctx, ActionSubmissionRequestChangesOperation,
+		trace.WithAttributes(otelAttrs...),
+		clientSpanKind,
+	)
+	// Track stage for error reporting.
+	var stage string
+	defer func() {
+		if err != nil {
+			span.RecordError(err)
+			span.SetStatus(codes.Error, stage)
+			c.errors.Add(ctx, 1, metric.WithAttributes(otelAttrs...))
+		}
+		span.End()
+	}()
+
+	stage = "BuildURL"
+	u := uri.Clone(c.requestURL(ctx))
+	var pathParts [3]string
+	pathParts[0] = "/submissions/"
+	{
+		// Encode "SubmissionID" parameter.
+		e := uri.NewPathEncoder(uri.PathEncoderConfig{
+			Param:   "SubmissionID",
+			Style:   uri.PathStyleSimple,
+			Explode: false,
+		})
+		if err := func() error {
+			return e.EncodeValue(conv.Int64ToString(params.SubmissionID))
+		}(); err != nil {
+			return res, errors.Wrap(err, "encode path")
+		}
+		encoded, err := e.Result()
+		if err != nil {
+			return res, errors.Wrap(err, "encode path")
+		}
+		pathParts[1] = encoded
+	}
+	pathParts[2] = "/status/validator-request-changes"
+	uri.AddPathParts(u, pathParts[:]...)
+
+	stage = "EncodeQueryParams"
+	q := uri.NewQueryEncoder()
+	{
+		// Encode "StatusMessage" parameter.
+		cfg := uri.QueryParameterEncodingConfig{
+			Name:    "StatusMessage",
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		}
+
+		if err := q.EncodeParam(cfg, func(e uri.Encoder) error {
+			return e.EncodeValue(conv.StringToString(params.StatusMessage))
+		}); err != nil {
+			return res, errors.Wrap(err, "encode query")
+		}
+	}
+	u.RawQuery = q.Values().Encode()
+
+	stage = "EncodeRequest"
+	r, err := ht.NewRequest(ctx, "POST", u)
+	if err != nil {
+		return res, errors.Wrap(err, "create request")
+	}
+
+	stage = "SendRequest"
+	resp, err := c.cfg.Client.Do(r)
+	if err != nil {
+		return res, errors.Wrap(err, "do request")
+	}
+	defer resp.Body.Close()
+
+	stage = "DecodeResponse"
+	result, err := decodeActionSubmissionRequestChangesResponse(resp)
+	if err != nil {
+		return res, errors.Wrap(err, "decode response")
+	}
+
+	return result, nil
+}
+
 // ActionSubmissionSubmitted invokes actionSubmissionSubmitted operation.
 //
 // (Internal endpoint) Role Validator changes status from Submitting -> Submitted.
@@ -854,6 +1102,24 @@ func (c *Client) sendActionSubmissionSubmitted(ctx context.Context, params Actio
 	pathParts[2] = "/status/validator-submitted"
 	uri.AddPathParts(u, pathParts[:]...)
 
+	stage = "EncodeQueryParams"
+	q := uri.NewQueryEncoder()
+	{
+		// Encode "ModelVersion" parameter.
+		cfg := uri.QueryParameterEncodingConfig{
+			Name:    "ModelVersion",
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		}
+
+		if err := q.EncodeParam(cfg, func(e uri.Encoder) error {
+			return e.EncodeValue(conv.Int64ToString(params.ModelVersion))
+		}); err != nil {
+			return res, errors.Wrap(err, "encode query")
+		}
+	}
+	u.RawQuery = q.Values().Encode()
+
 	stage = "EncodeRequest"
 	r, err := ht.NewRequest(ctx, "POST", u)
 	if err != nil {
diff --git a/pkg/internal/oas_handlers_gen.go b/pkg/internal/oas_handlers_gen.go
index a205b0e..ff02638 100644
--- a/pkg/internal/oas_handlers_gen.go
+++ b/pkg/internal/oas_handlers_gen.go
@@ -183,6 +183,159 @@ func (s *Server) handleActionMapfixAcceptedRequest(args [1]string, argsEscaped b
 	}
 }
 
+// handleActionMapfixRequestChangesRequest handles actionMapfixRequestChanges operation.
+//
+// (Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested.
+//
+// POST /mapfixes/{MapfixID}/status/validator-request-changes
+func (s *Server) handleActionMapfixRequestChangesRequest(args [1]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
+	statusWriter := &codeRecorder{ResponseWriter: w}
+	w = statusWriter
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("actionMapfixRequestChanges"),
+		semconv.HTTPRequestMethodKey.String("POST"),
+		semconv.HTTPRouteKey.String("/mapfixes/{MapfixID}/status/validator-request-changes"),
+	}
+
+	// Start a span for this request.
+	ctx, span := s.cfg.Tracer.Start(r.Context(), ActionMapfixRequestChangesOperation,
+		trace.WithAttributes(otelAttrs...),
+		serverSpanKind,
+	)
+	defer span.End()
+
+	// Add Labeler to context.
+	labeler := &Labeler{attrs: otelAttrs}
+	ctx = contextWithLabeler(ctx, labeler)
+
+	// Run stopwatch.
+	startTime := time.Now()
+	defer func() {
+		elapsedDuration := time.Since(startTime)
+
+		attrSet := labeler.AttributeSet()
+		attrs := attrSet.ToSlice()
+		code := statusWriter.status
+		if code != 0 {
+			codeAttr := semconv.HTTPResponseStatusCode(code)
+			attrs = append(attrs, codeAttr)
+			span.SetAttributes(codeAttr)
+		}
+		attrOpt := metric.WithAttributes(attrs...)
+
+		// Increment request counter.
+		s.requests.Add(ctx, 1, attrOpt)
+
+		// Use floating point division here for higher precision (instead of Millisecond method).
+		s.duration.Record(ctx, float64(elapsedDuration)/float64(time.Millisecond), attrOpt)
+	}()
+
+	var (
+		recordError = func(stage string, err error) {
+			span.RecordError(err)
+
+			// https://opentelemetry.io/docs/specs/semconv/http/http-spans/#status
+			// Span Status MUST be left unset if HTTP status code was in the 1xx, 2xx or 3xx ranges,
+			// unless there was another error (e.g., network error receiving the response body; or 3xx codes with
+			// max redirects exceeded), in which case status MUST be set to Error.
+			code := statusWriter.status
+			if code >= 100 && code < 500 {
+				span.SetStatus(codes.Error, stage)
+			}
+
+			attrSet := labeler.AttributeSet()
+			attrs := attrSet.ToSlice()
+			if code != 0 {
+				attrs = append(attrs, semconv.HTTPResponseStatusCode(code))
+			}
+
+			s.errors.Add(ctx, 1, metric.WithAttributes(attrs...))
+		}
+		err          error
+		opErrContext = ogenerrors.OperationContext{
+			Name: ActionMapfixRequestChangesOperation,
+			ID:   "actionMapfixRequestChanges",
+		}
+	)
+	params, err := decodeActionMapfixRequestChangesParams(args, argsEscaped, r)
+	if err != nil {
+		err = &ogenerrors.DecodeParamsError{
+			OperationContext: opErrContext,
+			Err:              err,
+		}
+		defer recordError("DecodeParams", err)
+		s.cfg.ErrorHandler(ctx, w, r, err)
+		return
+	}
+
+	var response *ActionMapfixRequestChangesNoContent
+	if m := s.cfg.Middleware; m != nil {
+		mreq := middleware.Request{
+			Context:          ctx,
+			OperationName:    ActionMapfixRequestChangesOperation,
+			OperationSummary: "(Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested",
+			OperationID:      "actionMapfixRequestChanges",
+			Body:             nil,
+			Params: middleware.Parameters{
+				{
+					Name: "MapfixID",
+					In:   "path",
+				}: params.MapfixID,
+				{
+					Name: "StatusMessage",
+					In:   "query",
+				}: params.StatusMessage,
+			},
+			Raw: r,
+		}
+
+		type (
+			Request  = struct{}
+			Params   = ActionMapfixRequestChangesParams
+			Response = *ActionMapfixRequestChangesNoContent
+		)
+		response, err = middleware.HookMiddleware[
+			Request,
+			Params,
+			Response,
+		](
+			m,
+			mreq,
+			unpackActionMapfixRequestChangesParams,
+			func(ctx context.Context, request Request, params Params) (response Response, err error) {
+				err = s.h.ActionMapfixRequestChanges(ctx, params)
+				return response, err
+			},
+		)
+	} else {
+		err = s.h.ActionMapfixRequestChanges(ctx, params)
+	}
+	if err != nil {
+		if errRes, ok := errors.Into[*ErrorStatusCode](err); ok {
+			if err := encodeErrorResponse(errRes, w, span); err != nil {
+				defer recordError("Internal", err)
+			}
+			return
+		}
+		if errors.Is(err, ht.ErrNotImplemented) {
+			s.cfg.ErrorHandler(ctx, w, r, err)
+			return
+		}
+		if err := encodeErrorResponse(s.h.NewError(ctx, err), w, span); err != nil {
+			defer recordError("Internal", err)
+		}
+		return
+	}
+
+	if err := encodeActionMapfixRequestChangesResponse(response, w, span); err != nil {
+		defer recordError("EncodeResponse", err)
+		if !errors.Is(err, ht.ErrInternalServerErrorResponse) {
+			s.cfg.ErrorHandler(ctx, w, r, err)
+		}
+		return
+	}
+}
+
 // handleActionMapfixSubmittedRequest handles actionMapfixSubmitted operation.
 //
 // (Internal endpoint) Role Validator changes status from Submitting -> Submitted.
@@ -281,6 +434,10 @@ func (s *Server) handleActionMapfixSubmittedRequest(args [1]string, argsEscaped
 					Name: "MapfixID",
 					In:   "path",
 				}: params.MapfixID,
+				{
+					Name: "ModelVersion",
+					In:   "query",
+				}: params.ModelVersion,
 			},
 			Raw: r,
 		}
@@ -936,6 +1093,159 @@ func (s *Server) handleActionSubmissionAcceptedRequest(args [1]string, argsEscap
 	}
 }
 
+// handleActionSubmissionRequestChangesRequest handles actionSubmissionRequestChanges operation.
+//
+// (Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested.
+//
+// POST /submissions/{SubmissionID}/status/validator-request-changes
+func (s *Server) handleActionSubmissionRequestChangesRequest(args [1]string, argsEscaped bool, w http.ResponseWriter, r *http.Request) {
+	statusWriter := &codeRecorder{ResponseWriter: w}
+	w = statusWriter
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("actionSubmissionRequestChanges"),
+		semconv.HTTPRequestMethodKey.String("POST"),
+		semconv.HTTPRouteKey.String("/submissions/{SubmissionID}/status/validator-request-changes"),
+	}
+
+	// Start a span for this request.
+	ctx, span := s.cfg.Tracer.Start(r.Context(), ActionSubmissionRequestChangesOperation,
+		trace.WithAttributes(otelAttrs...),
+		serverSpanKind,
+	)
+	defer span.End()
+
+	// Add Labeler to context.
+	labeler := &Labeler{attrs: otelAttrs}
+	ctx = contextWithLabeler(ctx, labeler)
+
+	// Run stopwatch.
+	startTime := time.Now()
+	defer func() {
+		elapsedDuration := time.Since(startTime)
+
+		attrSet := labeler.AttributeSet()
+		attrs := attrSet.ToSlice()
+		code := statusWriter.status
+		if code != 0 {
+			codeAttr := semconv.HTTPResponseStatusCode(code)
+			attrs = append(attrs, codeAttr)
+			span.SetAttributes(codeAttr)
+		}
+		attrOpt := metric.WithAttributes(attrs...)
+
+		// Increment request counter.
+		s.requests.Add(ctx, 1, attrOpt)
+
+		// Use floating point division here for higher precision (instead of Millisecond method).
+		s.duration.Record(ctx, float64(elapsedDuration)/float64(time.Millisecond), attrOpt)
+	}()
+
+	var (
+		recordError = func(stage string, err error) {
+			span.RecordError(err)
+
+			// https://opentelemetry.io/docs/specs/semconv/http/http-spans/#status
+			// Span Status MUST be left unset if HTTP status code was in the 1xx, 2xx or 3xx ranges,
+			// unless there was another error (e.g., network error receiving the response body; or 3xx codes with
+			// max redirects exceeded), in which case status MUST be set to Error.
+			code := statusWriter.status
+			if code >= 100 && code < 500 {
+				span.SetStatus(codes.Error, stage)
+			}
+
+			attrSet := labeler.AttributeSet()
+			attrs := attrSet.ToSlice()
+			if code != 0 {
+				attrs = append(attrs, semconv.HTTPResponseStatusCode(code))
+			}
+
+			s.errors.Add(ctx, 1, metric.WithAttributes(attrs...))
+		}
+		err          error
+		opErrContext = ogenerrors.OperationContext{
+			Name: ActionSubmissionRequestChangesOperation,
+			ID:   "actionSubmissionRequestChanges",
+		}
+	)
+	params, err := decodeActionSubmissionRequestChangesParams(args, argsEscaped, r)
+	if err != nil {
+		err = &ogenerrors.DecodeParamsError{
+			OperationContext: opErrContext,
+			Err:              err,
+		}
+		defer recordError("DecodeParams", err)
+		s.cfg.ErrorHandler(ctx, w, r, err)
+		return
+	}
+
+	var response *ActionSubmissionRequestChangesNoContent
+	if m := s.cfg.Middleware; m != nil {
+		mreq := middleware.Request{
+			Context:          ctx,
+			OperationName:    ActionSubmissionRequestChangesOperation,
+			OperationSummary: "(Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested",
+			OperationID:      "actionSubmissionRequestChanges",
+			Body:             nil,
+			Params: middleware.Parameters{
+				{
+					Name: "SubmissionID",
+					In:   "path",
+				}: params.SubmissionID,
+				{
+					Name: "StatusMessage",
+					In:   "query",
+				}: params.StatusMessage,
+			},
+			Raw: r,
+		}
+
+		type (
+			Request  = struct{}
+			Params   = ActionSubmissionRequestChangesParams
+			Response = *ActionSubmissionRequestChangesNoContent
+		)
+		response, err = middleware.HookMiddleware[
+			Request,
+			Params,
+			Response,
+		](
+			m,
+			mreq,
+			unpackActionSubmissionRequestChangesParams,
+			func(ctx context.Context, request Request, params Params) (response Response, err error) {
+				err = s.h.ActionSubmissionRequestChanges(ctx, params)
+				return response, err
+			},
+		)
+	} else {
+		err = s.h.ActionSubmissionRequestChanges(ctx, params)
+	}
+	if err != nil {
+		if errRes, ok := errors.Into[*ErrorStatusCode](err); ok {
+			if err := encodeErrorResponse(errRes, w, span); err != nil {
+				defer recordError("Internal", err)
+			}
+			return
+		}
+		if errors.Is(err, ht.ErrNotImplemented) {
+			s.cfg.ErrorHandler(ctx, w, r, err)
+			return
+		}
+		if err := encodeErrorResponse(s.h.NewError(ctx, err), w, span); err != nil {
+			defer recordError("Internal", err)
+		}
+		return
+	}
+
+	if err := encodeActionSubmissionRequestChangesResponse(response, w, span); err != nil {
+		defer recordError("EncodeResponse", err)
+		if !errors.Is(err, ht.ErrInternalServerErrorResponse) {
+			s.cfg.ErrorHandler(ctx, w, r, err)
+		}
+		return
+	}
+}
+
 // handleActionSubmissionSubmittedRequest handles actionSubmissionSubmitted operation.
 //
 // (Internal endpoint) Role Validator changes status from Submitting -> Submitted.
@@ -1034,6 +1344,10 @@ func (s *Server) handleActionSubmissionSubmittedRequest(args [1]string, argsEsca
 					Name: "SubmissionID",
 					In:   "path",
 				}: params.SubmissionID,
+				{
+					Name: "ModelVersion",
+					In:   "query",
+				}: params.ModelVersion,
 			},
 			Raw: r,
 		}
diff --git a/pkg/internal/oas_operations_gen.go b/pkg/internal/oas_operations_gen.go
index cc5e6af..9ddc04b 100644
--- a/pkg/internal/oas_operations_gen.go
+++ b/pkg/internal/oas_operations_gen.go
@@ -7,11 +7,13 @@ type OperationName = string
 
 const (
 	ActionMapfixAcceptedOperation           OperationName = "ActionMapfixAccepted"
+	ActionMapfixRequestChangesOperation     OperationName = "ActionMapfixRequestChanges"
 	ActionMapfixSubmittedOperation          OperationName = "ActionMapfixSubmitted"
 	ActionMapfixUploadedOperation           OperationName = "ActionMapfixUploaded"
 	ActionMapfixValidatedOperation          OperationName = "ActionMapfixValidated"
 	ActionOperationFailedOperation          OperationName = "ActionOperationFailed"
 	ActionSubmissionAcceptedOperation       OperationName = "ActionSubmissionAccepted"
+	ActionSubmissionRequestChangesOperation OperationName = "ActionSubmissionRequestChanges"
 	ActionSubmissionSubmittedOperation      OperationName = "ActionSubmissionSubmitted"
 	ActionSubmissionUploadedOperation       OperationName = "ActionSubmissionUploaded"
 	ActionSubmissionValidatedOperation      OperationName = "ActionSubmissionValidated"
diff --git a/pkg/internal/oas_parameters_gen.go b/pkg/internal/oas_parameters_gen.go
index f564af1..d21e5e5 100644
--- a/pkg/internal/oas_parameters_gen.go
+++ b/pkg/internal/oas_parameters_gen.go
@@ -159,13 +159,14 @@ func decodeActionMapfixAcceptedParams(args [1]string, argsEscaped bool, r *http.
 	return params, nil
 }
 
-// ActionMapfixSubmittedParams is parameters of actionMapfixSubmitted operation.
-type ActionMapfixSubmittedParams struct {
+// ActionMapfixRequestChangesParams is parameters of actionMapfixRequestChanges operation.
+type ActionMapfixRequestChangesParams struct {
 	// The unique identifier for a submission.
-	MapfixID int64
+	MapfixID      int64
+	StatusMessage string
 }
 
-func unpackActionMapfixSubmittedParams(packed middleware.Parameters) (params ActionMapfixSubmittedParams) {
+func unpackActionMapfixRequestChangesParams(packed middleware.Parameters) (params ActionMapfixRequestChangesParams) {
 	{
 		key := middleware.ParameterKey{
 			Name: "MapfixID",
@@ -173,10 +174,18 @@ func unpackActionMapfixSubmittedParams(packed middleware.Parameters) (params Act
 		}
 		params.MapfixID = packed[key].(int64)
 	}
+	{
+		key := middleware.ParameterKey{
+			Name: "StatusMessage",
+			In:   "query",
+		}
+		params.StatusMessage = packed[key].(string)
+	}
 	return params
 }
 
-func decodeActionMapfixSubmittedParams(args [1]string, argsEscaped bool, r *http.Request) (params ActionMapfixSubmittedParams, _ error) {
+func decodeActionMapfixRequestChangesParams(args [1]string, argsEscaped bool, r *http.Request) (params ActionMapfixRequestChangesParams, _ error) {
+	q := uri.NewQueryDecoder(r.URL.Query())
 	// Decode path: MapfixID.
 	if err := func() error {
 		param := args[0]
@@ -239,6 +248,203 @@ func decodeActionMapfixSubmittedParams(args [1]string, argsEscaped bool, r *http
 			Err:  err,
 		}
 	}
+	// Decode query: StatusMessage.
+	if err := func() error {
+		cfg := uri.QueryParameterDecodingConfig{
+			Name:    "StatusMessage",
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		}
+
+		if err := q.HasParam(cfg); err == nil {
+			if err := q.DecodeParam(cfg, func(d uri.Decoder) error {
+				val, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToString(val)
+				if err != nil {
+					return err
+				}
+
+				params.StatusMessage = c
+				return nil
+			}); err != nil {
+				return err
+			}
+			if err := func() error {
+				if err := (validate.String{
+					MinLength:    0,
+					MinLengthSet: true,
+					MaxLength:    4096,
+					MaxLengthSet: true,
+					Email:        false,
+					Hostname:     false,
+					Regex:        nil,
+				}).Validate(string(params.StatusMessage)); err != nil {
+					return errors.Wrap(err, "string")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		} else {
+			return err
+		}
+		return nil
+	}(); err != nil {
+		return params, &ogenerrors.DecodeParamError{
+			Name: "StatusMessage",
+			In:   "query",
+			Err:  err,
+		}
+	}
+	return params, nil
+}
+
+// ActionMapfixSubmittedParams is parameters of actionMapfixSubmitted operation.
+type ActionMapfixSubmittedParams struct {
+	// The unique identifier for a submission.
+	MapfixID     int64
+	ModelVersion int64
+}
+
+func unpackActionMapfixSubmittedParams(packed middleware.Parameters) (params ActionMapfixSubmittedParams) {
+	{
+		key := middleware.ParameterKey{
+			Name: "MapfixID",
+			In:   "path",
+		}
+		params.MapfixID = packed[key].(int64)
+	}
+	{
+		key := middleware.ParameterKey{
+			Name: "ModelVersion",
+			In:   "query",
+		}
+		params.ModelVersion = packed[key].(int64)
+	}
+	return params
+}
+
+func decodeActionMapfixSubmittedParams(args [1]string, argsEscaped bool, r *http.Request) (params ActionMapfixSubmittedParams, _ error) {
+	q := uri.NewQueryDecoder(r.URL.Query())
+	// Decode path: MapfixID.
+	if err := func() error {
+		param := args[0]
+		if argsEscaped {
+			unescaped, err := url.PathUnescape(args[0])
+			if err != nil {
+				return errors.Wrap(err, "unescape path")
+			}
+			param = unescaped
+		}
+		if len(param) > 0 {
+			d := uri.NewPathDecoder(uri.PathDecoderConfig{
+				Param:   "MapfixID",
+				Value:   param,
+				Style:   uri.PathStyleSimple,
+				Explode: false,
+			})
+
+			if err := func() error {
+				val, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToInt64(val)
+				if err != nil {
+					return err
+				}
+
+				params.MapfixID = c
+				return nil
+			}(); err != nil {
+				return err
+			}
+			if err := func() error {
+				if err := (validate.Int{
+					MinSet:        true,
+					Min:           0,
+					MaxSet:        false,
+					Max:           0,
+					MinExclusive:  false,
+					MaxExclusive:  false,
+					MultipleOfSet: false,
+					MultipleOf:    0,
+				}).Validate(int64(params.MapfixID)); err != nil {
+					return errors.Wrap(err, "int")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		} else {
+			return validate.ErrFieldRequired
+		}
+		return nil
+	}(); err != nil {
+		return params, &ogenerrors.DecodeParamError{
+			Name: "MapfixID",
+			In:   "path",
+			Err:  err,
+		}
+	}
+	// Decode query: ModelVersion.
+	if err := func() error {
+		cfg := uri.QueryParameterDecodingConfig{
+			Name:    "ModelVersion",
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		}
+
+		if err := q.HasParam(cfg); err == nil {
+			if err := q.DecodeParam(cfg, func(d uri.Decoder) error {
+				val, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToInt64(val)
+				if err != nil {
+					return err
+				}
+
+				params.ModelVersion = c
+				return nil
+			}); err != nil {
+				return err
+			}
+			if err := func() error {
+				if err := (validate.Int{
+					MinSet:        true,
+					Min:           0,
+					MaxSet:        false,
+					Max:           0,
+					MinExclusive:  false,
+					MaxExclusive:  false,
+					MultipleOfSet: false,
+					MultipleOf:    0,
+				}).Validate(int64(params.ModelVersion)); err != nil {
+					return errors.Wrap(err, "int")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		} else {
+			return err
+		}
+		return nil
+	}(); err != nil {
+		return params, &ogenerrors.DecodeParamError{
+			Name: "ModelVersion",
+			In:   "query",
+			Err:  err,
+		}
+	}
 	return params, nil
 }
 
@@ -696,13 +902,14 @@ func decodeActionSubmissionAcceptedParams(args [1]string, argsEscaped bool, r *h
 	return params, nil
 }
 
-// ActionSubmissionSubmittedParams is parameters of actionSubmissionSubmitted operation.
-type ActionSubmissionSubmittedParams struct {
+// ActionSubmissionRequestChangesParams is parameters of actionSubmissionRequestChanges operation.
+type ActionSubmissionRequestChangesParams struct {
 	// The unique identifier for a submission.
-	SubmissionID int64
+	SubmissionID  int64
+	StatusMessage string
 }
 
-func unpackActionSubmissionSubmittedParams(packed middleware.Parameters) (params ActionSubmissionSubmittedParams) {
+func unpackActionSubmissionRequestChangesParams(packed middleware.Parameters) (params ActionSubmissionRequestChangesParams) {
 	{
 		key := middleware.ParameterKey{
 			Name: "SubmissionID",
@@ -710,10 +917,18 @@ func unpackActionSubmissionSubmittedParams(packed middleware.Parameters) (params
 		}
 		params.SubmissionID = packed[key].(int64)
 	}
+	{
+		key := middleware.ParameterKey{
+			Name: "StatusMessage",
+			In:   "query",
+		}
+		params.StatusMessage = packed[key].(string)
+	}
 	return params
 }
 
-func decodeActionSubmissionSubmittedParams(args [1]string, argsEscaped bool, r *http.Request) (params ActionSubmissionSubmittedParams, _ error) {
+func decodeActionSubmissionRequestChangesParams(args [1]string, argsEscaped bool, r *http.Request) (params ActionSubmissionRequestChangesParams, _ error) {
+	q := uri.NewQueryDecoder(r.URL.Query())
 	// Decode path: SubmissionID.
 	if err := func() error {
 		param := args[0]
@@ -776,6 +991,203 @@ func decodeActionSubmissionSubmittedParams(args [1]string, argsEscaped bool, r *
 			Err:  err,
 		}
 	}
+	// Decode query: StatusMessage.
+	if err := func() error {
+		cfg := uri.QueryParameterDecodingConfig{
+			Name:    "StatusMessage",
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		}
+
+		if err := q.HasParam(cfg); err == nil {
+			if err := q.DecodeParam(cfg, func(d uri.Decoder) error {
+				val, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToString(val)
+				if err != nil {
+					return err
+				}
+
+				params.StatusMessage = c
+				return nil
+			}); err != nil {
+				return err
+			}
+			if err := func() error {
+				if err := (validate.String{
+					MinLength:    0,
+					MinLengthSet: true,
+					MaxLength:    4096,
+					MaxLengthSet: true,
+					Email:        false,
+					Hostname:     false,
+					Regex:        nil,
+				}).Validate(string(params.StatusMessage)); err != nil {
+					return errors.Wrap(err, "string")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		} else {
+			return err
+		}
+		return nil
+	}(); err != nil {
+		return params, &ogenerrors.DecodeParamError{
+			Name: "StatusMessage",
+			In:   "query",
+			Err:  err,
+		}
+	}
+	return params, nil
+}
+
+// ActionSubmissionSubmittedParams is parameters of actionSubmissionSubmitted operation.
+type ActionSubmissionSubmittedParams struct {
+	// The unique identifier for a submission.
+	SubmissionID int64
+	ModelVersion int64
+}
+
+func unpackActionSubmissionSubmittedParams(packed middleware.Parameters) (params ActionSubmissionSubmittedParams) {
+	{
+		key := middleware.ParameterKey{
+			Name: "SubmissionID",
+			In:   "path",
+		}
+		params.SubmissionID = packed[key].(int64)
+	}
+	{
+		key := middleware.ParameterKey{
+			Name: "ModelVersion",
+			In:   "query",
+		}
+		params.ModelVersion = packed[key].(int64)
+	}
+	return params
+}
+
+func decodeActionSubmissionSubmittedParams(args [1]string, argsEscaped bool, r *http.Request) (params ActionSubmissionSubmittedParams, _ error) {
+	q := uri.NewQueryDecoder(r.URL.Query())
+	// Decode path: SubmissionID.
+	if err := func() error {
+		param := args[0]
+		if argsEscaped {
+			unescaped, err := url.PathUnescape(args[0])
+			if err != nil {
+				return errors.Wrap(err, "unescape path")
+			}
+			param = unescaped
+		}
+		if len(param) > 0 {
+			d := uri.NewPathDecoder(uri.PathDecoderConfig{
+				Param:   "SubmissionID",
+				Value:   param,
+				Style:   uri.PathStyleSimple,
+				Explode: false,
+			})
+
+			if err := func() error {
+				val, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToInt64(val)
+				if err != nil {
+					return err
+				}
+
+				params.SubmissionID = c
+				return nil
+			}(); err != nil {
+				return err
+			}
+			if err := func() error {
+				if err := (validate.Int{
+					MinSet:        true,
+					Min:           0,
+					MaxSet:        false,
+					Max:           0,
+					MinExclusive:  false,
+					MaxExclusive:  false,
+					MultipleOfSet: false,
+					MultipleOf:    0,
+				}).Validate(int64(params.SubmissionID)); err != nil {
+					return errors.Wrap(err, "int")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		} else {
+			return validate.ErrFieldRequired
+		}
+		return nil
+	}(); err != nil {
+		return params, &ogenerrors.DecodeParamError{
+			Name: "SubmissionID",
+			In:   "path",
+			Err:  err,
+		}
+	}
+	// Decode query: ModelVersion.
+	if err := func() error {
+		cfg := uri.QueryParameterDecodingConfig{
+			Name:    "ModelVersion",
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		}
+
+		if err := q.HasParam(cfg); err == nil {
+			if err := q.DecodeParam(cfg, func(d uri.Decoder) error {
+				val, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToInt64(val)
+				if err != nil {
+					return err
+				}
+
+				params.ModelVersion = c
+				return nil
+			}); err != nil {
+				return err
+			}
+			if err := func() error {
+				if err := (validate.Int{
+					MinSet:        true,
+					Min:           0,
+					MaxSet:        false,
+					Max:           0,
+					MinExclusive:  false,
+					MaxExclusive:  false,
+					MultipleOfSet: false,
+					MultipleOf:    0,
+				}).Validate(int64(params.ModelVersion)); err != nil {
+					return errors.Wrap(err, "int")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		} else {
+			return err
+		}
+		return nil
+	}(); err != nil {
+		return params, &ogenerrors.DecodeParamError{
+			Name: "ModelVersion",
+			In:   "query",
+			Err:  err,
+		}
+	}
 	return params, nil
 }
 
diff --git a/pkg/internal/oas_response_decoders_gen.go b/pkg/internal/oas_response_decoders_gen.go
index 8b7f1da..77616ac 100644
--- a/pkg/internal/oas_response_decoders_gen.go
+++ b/pkg/internal/oas_response_decoders_gen.go
@@ -75,6 +75,66 @@ func decodeActionMapfixAcceptedResponse(resp *http.Response) (res *ActionMapfixA
 	return res, errors.Wrap(defRes, "error")
 }
 
+func decodeActionMapfixRequestChangesResponse(resp *http.Response) (res *ActionMapfixRequestChangesNoContent, _ error) {
+	switch resp.StatusCode {
+	case 204:
+		// Code 204.
+		return &ActionMapfixRequestChangesNoContent{}, nil
+	}
+	// Convenient error response.
+	defRes, err := func() (res *ErrorStatusCode, err error) {
+		ct, _, err := mime.ParseMediaType(resp.Header.Get("Content-Type"))
+		if err != nil {
+			return res, errors.Wrap(err, "parse media type")
+		}
+		switch {
+		case ct == "application/json":
+			buf, err := io.ReadAll(resp.Body)
+			if err != nil {
+				return res, err
+			}
+			d := jx.DecodeBytes(buf)
+
+			var response Error
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				if err := d.Skip(); err != io.EOF {
+					return errors.New("unexpected trailing data")
+				}
+				return nil
+			}(); err != nil {
+				err = &ogenerrors.DecodeBodyError{
+					ContentType: ct,
+					Body:        buf,
+					Err:         err,
+				}
+				return res, err
+			}
+			// Validate response.
+			if err := func() error {
+				if err := response.Validate(); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, errors.Wrap(err, "validate")
+			}
+			return &ErrorStatusCode{
+				StatusCode: resp.StatusCode,
+				Response:   response,
+			}, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	}()
+	if err != nil {
+		return res, errors.Wrapf(err, "default (code %d)", resp.StatusCode)
+	}
+	return res, errors.Wrap(defRes, "error")
+}
+
 func decodeActionMapfixSubmittedResponse(resp *http.Response) (res *ActionMapfixSubmittedNoContent, _ error) {
 	switch resp.StatusCode {
 	case 204:
@@ -375,6 +435,66 @@ func decodeActionSubmissionAcceptedResponse(resp *http.Response) (res *ActionSub
 	return res, errors.Wrap(defRes, "error")
 }
 
+func decodeActionSubmissionRequestChangesResponse(resp *http.Response) (res *ActionSubmissionRequestChangesNoContent, _ error) {
+	switch resp.StatusCode {
+	case 204:
+		// Code 204.
+		return &ActionSubmissionRequestChangesNoContent{}, nil
+	}
+	// Convenient error response.
+	defRes, err := func() (res *ErrorStatusCode, err error) {
+		ct, _, err := mime.ParseMediaType(resp.Header.Get("Content-Type"))
+		if err != nil {
+			return res, errors.Wrap(err, "parse media type")
+		}
+		switch {
+		case ct == "application/json":
+			buf, err := io.ReadAll(resp.Body)
+			if err != nil {
+				return res, err
+			}
+			d := jx.DecodeBytes(buf)
+
+			var response Error
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				if err := d.Skip(); err != io.EOF {
+					return errors.New("unexpected trailing data")
+				}
+				return nil
+			}(); err != nil {
+				err = &ogenerrors.DecodeBodyError{
+					ContentType: ct,
+					Body:        buf,
+					Err:         err,
+				}
+				return res, err
+			}
+			// Validate response.
+			if err := func() error {
+				if err := response.Validate(); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, errors.Wrap(err, "validate")
+			}
+			return &ErrorStatusCode{
+				StatusCode: resp.StatusCode,
+				Response:   response,
+			}, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	}()
+	if err != nil {
+		return res, errors.Wrapf(err, "default (code %d)", resp.StatusCode)
+	}
+	return res, errors.Wrap(defRes, "error")
+}
+
 func decodeActionSubmissionSubmittedResponse(resp *http.Response) (res *ActionSubmissionSubmittedNoContent, _ error) {
 	switch resp.StatusCode {
 	case 204:
diff --git a/pkg/internal/oas_response_encoders_gen.go b/pkg/internal/oas_response_encoders_gen.go
index 38bfb96..024126c 100644
--- a/pkg/internal/oas_response_encoders_gen.go
+++ b/pkg/internal/oas_response_encoders_gen.go
@@ -20,6 +20,13 @@ func encodeActionMapfixAcceptedResponse(response *ActionMapfixAcceptedNoContent,
 	return nil
 }
 
+func encodeActionMapfixRequestChangesResponse(response *ActionMapfixRequestChangesNoContent, w http.ResponseWriter, span trace.Span) error {
+	w.WriteHeader(204)
+	span.SetStatus(codes.Ok, http.StatusText(204))
+
+	return nil
+}
+
 func encodeActionMapfixSubmittedResponse(response *ActionMapfixSubmittedNoContent, w http.ResponseWriter, span trace.Span) error {
 	w.WriteHeader(204)
 	span.SetStatus(codes.Ok, http.StatusText(204))
@@ -55,6 +62,13 @@ func encodeActionSubmissionAcceptedResponse(response *ActionSubmissionAcceptedNo
 	return nil
 }
 
+func encodeActionSubmissionRequestChangesResponse(response *ActionSubmissionRequestChangesNoContent, w http.ResponseWriter, span trace.Span) error {
+	w.WriteHeader(204)
+	span.SetStatus(codes.Ok, http.StatusText(204))
+
+	return nil
+}
+
 func encodeActionSubmissionSubmittedResponse(response *ActionSubmissionSubmittedNoContent, w http.ResponseWriter, span trace.Span) error {
 	w.WriteHeader(204)
 	span.SetStatus(codes.Ok, http.StatusText(204))
diff --git a/pkg/internal/oas_router_gen.go b/pkg/internal/oas_router_gen.go
index 3e9fba8..43be2cc 100644
--- a/pkg/internal/oas_router_gen.go
+++ b/pkg/internal/oas_router_gen.go
@@ -147,6 +147,28 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 									return
 								}
 
+							case 'r': // Prefix: "request-changes"
+
+								if l := len("request-changes"); len(elem) >= l && elem[0:l] == "request-changes" {
+									elem = elem[l:]
+								} else {
+									break
+								}
+
+								if len(elem) == 0 {
+									// Leaf node.
+									switch r.Method {
+									case "POST":
+										s.handleActionMapfixRequestChangesRequest([1]string{
+											args[0],
+										}, elemIsEscaped, w, r)
+									default:
+										s.notAllowed(w, r, "POST")
+									}
+
+									return
+								}
+
 							case 's': // Prefix: "submitted"
 
 								if l := len("submitted"); len(elem) >= l && elem[0:l] == "submitted" {
@@ -476,6 +498,28 @@ func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 										return
 									}
 
+								case 'r': // Prefix: "request-changes"
+
+									if l := len("request-changes"); len(elem) >= l && elem[0:l] == "request-changes" {
+										elem = elem[l:]
+									} else {
+										break
+									}
+
+									if len(elem) == 0 {
+										// Leaf node.
+										switch r.Method {
+										case "POST":
+											s.handleActionSubmissionRequestChangesRequest([1]string{
+												args[0],
+											}, elemIsEscaped, w, r)
+										default:
+											s.notAllowed(w, r, "POST")
+										}
+
+										return
+									}
+
 								case 's': // Prefix: "submitted"
 
 									if l := len("submitted"); len(elem) >= l && elem[0:l] == "submitted" {
@@ -760,6 +804,30 @@ func (s *Server) FindPath(method string, u *url.URL) (r Route, _ bool) {
 									}
 								}
 
+							case 'r': // Prefix: "request-changes"
+
+								if l := len("request-changes"); len(elem) >= l && elem[0:l] == "request-changes" {
+									elem = elem[l:]
+								} else {
+									break
+								}
+
+								if len(elem) == 0 {
+									// Leaf node.
+									switch method {
+									case "POST":
+										r.name = ActionMapfixRequestChangesOperation
+										r.summary = "(Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested"
+										r.operationID = "actionMapfixRequestChanges"
+										r.pathPattern = "/mapfixes/{MapfixID}/status/validator-request-changes"
+										r.args = args
+										r.count = 1
+										return r, true
+									default:
+										return
+									}
+								}
+
 							case 's': // Prefix: "submitted"
 
 								if l := len("submitted"); len(elem) >= l && elem[0:l] == "submitted" {
@@ -1127,6 +1195,30 @@ func (s *Server) FindPath(method string, u *url.URL) (r Route, _ bool) {
 										}
 									}
 
+								case 'r': // Prefix: "request-changes"
+
+									if l := len("request-changes"); len(elem) >= l && elem[0:l] == "request-changes" {
+										elem = elem[l:]
+									} else {
+										break
+									}
+
+									if len(elem) == 0 {
+										// Leaf node.
+										switch method {
+										case "POST":
+											r.name = ActionSubmissionRequestChangesOperation
+											r.summary = "(Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested"
+											r.operationID = "actionSubmissionRequestChanges"
+											r.pathPattern = "/submissions/{SubmissionID}/status/validator-request-changes"
+											r.args = args
+											r.count = 1
+											return r, true
+										default:
+											return
+										}
+									}
+
 								case 's': // Prefix: "submitted"
 
 									if l := len("submitted"); len(elem) >= l && elem[0:l] == "submitted" {
diff --git a/pkg/internal/oas_schemas_gen.go b/pkg/internal/oas_schemas_gen.go
index e68e85a..f8c3cd4 100644
--- a/pkg/internal/oas_schemas_gen.go
+++ b/pkg/internal/oas_schemas_gen.go
@@ -13,6 +13,9 @@ func (s *ErrorStatusCode) Error() string {
 // ActionMapfixAcceptedNoContent is response for ActionMapfixAccepted operation.
 type ActionMapfixAcceptedNoContent struct{}
 
+// ActionMapfixRequestChangesNoContent is response for ActionMapfixRequestChanges operation.
+type ActionMapfixRequestChangesNoContent struct{}
+
 // ActionMapfixSubmittedNoContent is response for ActionMapfixSubmitted operation.
 type ActionMapfixSubmittedNoContent struct{}
 
@@ -28,6 +31,9 @@ type ActionOperationFailedNoContent struct{}
 // ActionSubmissionAcceptedNoContent is response for ActionSubmissionAccepted operation.
 type ActionSubmissionAcceptedNoContent struct{}
 
+// ActionSubmissionRequestChangesNoContent is response for ActionSubmissionRequestChanges operation.
+type ActionSubmissionRequestChangesNoContent struct{}
+
 // ActionSubmissionSubmittedNoContent is response for ActionSubmissionSubmitted operation.
 type ActionSubmissionSubmittedNoContent struct{}
 
diff --git a/pkg/internal/oas_server_gen.go b/pkg/internal/oas_server_gen.go
index 94c8192..7350a9c 100644
--- a/pkg/internal/oas_server_gen.go
+++ b/pkg/internal/oas_server_gen.go
@@ -14,6 +14,12 @@ type Handler interface {
 	//
 	// POST /mapfixes/{MapfixID}/status/validator-failed
 	ActionMapfixAccepted(ctx context.Context, params ActionMapfixAcceptedParams) error
+	// ActionMapfixRequestChanges implements actionMapfixRequestChanges operation.
+	//
+	// (Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested.
+	//
+	// POST /mapfixes/{MapfixID}/status/validator-request-changes
+	ActionMapfixRequestChanges(ctx context.Context, params ActionMapfixRequestChangesParams) error
 	// ActionMapfixSubmitted implements actionMapfixSubmitted operation.
 	//
 	// (Internal endpoint) Role Validator changes status from Submitting -> Submitted.
@@ -44,6 +50,12 @@ type Handler interface {
 	//
 	// POST /submissions/{SubmissionID}/status/validator-failed
 	ActionSubmissionAccepted(ctx context.Context, params ActionSubmissionAcceptedParams) error
+	// ActionSubmissionRequestChanges implements actionSubmissionRequestChanges operation.
+	//
+	// (Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested.
+	//
+	// POST /submissions/{SubmissionID}/status/validator-request-changes
+	ActionSubmissionRequestChanges(ctx context.Context, params ActionSubmissionRequestChangesParams) error
 	// ActionSubmissionSubmitted implements actionSubmissionSubmitted operation.
 	//
 	// (Internal endpoint) Role Validator changes status from Submitting -> Submitted.
diff --git a/pkg/internal/oas_unimplemented_gen.go b/pkg/internal/oas_unimplemented_gen.go
index 7baa6e9..46a4c7e 100644
--- a/pkg/internal/oas_unimplemented_gen.go
+++ b/pkg/internal/oas_unimplemented_gen.go
@@ -22,6 +22,15 @@ func (UnimplementedHandler) ActionMapfixAccepted(ctx context.Context, params Act
 	return ht.ErrNotImplemented
 }
 
+// ActionMapfixRequestChanges implements actionMapfixRequestChanges operation.
+//
+// (Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested.
+//
+// POST /mapfixes/{MapfixID}/status/validator-request-changes
+func (UnimplementedHandler) ActionMapfixRequestChanges(ctx context.Context, params ActionMapfixRequestChangesParams) error {
+	return ht.ErrNotImplemented
+}
+
 // ActionMapfixSubmitted implements actionMapfixSubmitted operation.
 //
 // (Internal endpoint) Role Validator changes status from Submitting -> Submitted.
@@ -67,6 +76,15 @@ func (UnimplementedHandler) ActionSubmissionAccepted(ctx context.Context, params
 	return ht.ErrNotImplemented
 }
 
+// ActionSubmissionRequestChanges implements actionSubmissionRequestChanges operation.
+//
+// (Internal endpoint) Role Validator changes status from Submitting -> ChangesRequested.
+//
+// POST /submissions/{SubmissionID}/status/validator-request-changes
+func (UnimplementedHandler) ActionSubmissionRequestChanges(ctx context.Context, params ActionSubmissionRequestChangesParams) error {
+	return ht.ErrNotImplemented
+}
+
 // ActionSubmissionSubmitted implements actionSubmissionSubmitted operation.
 //
 // (Internal endpoint) Role Validator changes status from Submitting -> Submitted.