diff --git a/lxd/instance_put.go b/lxd/instance_put.go
index 563a3aed28f9..7b961bd08839 100644
--- a/lxd/instance_put.go
+++ b/lxd/instance_put.go
@@ -1,32 +1,9 @@
 package main
 
 import (
-	"context"
-	"encoding/json"
-	"fmt"
 	"net/http"
-	"net/url"
 
-	"github.com/google/uuid"
-	"github.com/gorilla/mux"
-
-	"github.com/canonical/lxd/lxd/db"
-	"github.com/canonical/lxd/lxd/db/cluster"
-	"github.com/canonical/lxd/lxd/db/operationtype"
-	deviceConfig "github.com/canonical/lxd/lxd/device/config"
-	"github.com/canonical/lxd/lxd/instance"
-	"github.com/canonical/lxd/lxd/instance/instancetype"
-	"github.com/canonical/lxd/lxd/operations"
-	"github.com/canonical/lxd/lxd/project/limits"
-	"github.com/canonical/lxd/lxd/request"
 	"github.com/canonical/lxd/lxd/response"
-	"github.com/canonical/lxd/lxd/state"
-	"github.com/canonical/lxd/lxd/util"
-	"github.com/canonical/lxd/shared"
-	"github.com/canonical/lxd/shared/api"
-	"github.com/canonical/lxd/shared/osarch"
-	"github.com/canonical/lxd/shared/revert"
-	"github.com/canonical/lxd/shared/version"
 )
 
 // swagger:operation PUT /1.0/instances/{name} instances instance_put
@@ -61,187 +38,5 @@ import (
 //	  "500":
 //	    $ref: "#/responses/InternalServerError"
 func instancePut(d *Daemon, r *http.Request) response.Response {
-	// Don't mess with instance while in setup mode.
-	<-d.waitReady.Done()
-
-	s := d.State()
-
-	instanceType, err := urlInstanceTypeDetect(r)
-	if err != nil {
-		return response.SmartError(err)
-	}
-
-	projectName := request.ProjectParam(r)
-
-	// Get the container
-	name, err := url.PathUnescape(mux.Vars(r)["name"])
-	if err != nil {
-		return response.SmartError(err)
-	}
-
-	if shared.IsSnapshot(name) {
-		return response.BadRequest(fmt.Errorf("Invalid instance name"))
-	}
-
-	// Handle requests targeted to a container on a different node
-	resp, err := forwardedResponseIfInstanceIsRemote(s, r, projectName, name, instanceType)
-	if err != nil {
-		return response.SmartError(err)
-	}
-
-	if resp != nil {
-		return resp
-	}
-
-	revert := revert.New()
-	defer revert.Fail()
-
-	unlock, err := instanceOperationLock(s.ShutdownCtx, projectName, name)
-	if err != nil {
-		return response.SmartError(err)
-	}
-
-	revert.Add(func() {
-		unlock()
-	})
-
-	inst, err := instance.LoadByProjectAndName(s, projectName, name)
-	if err != nil {
-		return response.SmartError(err)
-	}
-
-	// Validate the ETag
-	etag := []any{inst.Architecture(), inst.LocalConfig(), inst.LocalDevices(), inst.IsEphemeral(), inst.Profiles()}
-	err = util.EtagCheck(r, etag)
-	if err != nil {
-		return response.PreconditionFailed(err)
-	}
-
-	configRaw := api.InstancePut{}
-	err = json.NewDecoder(r.Body).Decode(&configRaw)
-	if err != nil {
-		return response.BadRequest(err)
-	}
-
-	architecture, err := osarch.ArchitectureId(configRaw.Architecture)
-	if err != nil {
-		architecture = 0
-	}
-
-	var do func(*operations.Operation) error
-	var opType operationtype.Type
-	if configRaw.Restore == "" {
-		// Check project limits.
-		apiProfiles := make([]api.Profile, 0, len(configRaw.Profiles))
-		err = s.DB.Cluster.Transaction(r.Context(), func(ctx context.Context, tx *db.ClusterTx) error {
-			profiles, err := cluster.GetProfilesIfEnabled(ctx, tx.Tx(), projectName, configRaw.Profiles)
-			if err != nil {
-				return err
-			}
-
-			profileConfigs, err := cluster.GetConfig(ctx, tx.Tx(), "profile")
-			if err != nil {
-				return err
-			}
-
-			profileDevices, err := cluster.GetDevices(ctx, tx.Tx(), "profile")
-			if err != nil {
-				return err
-			}
-
-			for _, profile := range profiles {
-				apiProfile, err := profile.ToAPI(ctx, tx.Tx(), profileConfigs, profileDevices)
-				if err != nil {
-					return err
-				}
-
-				apiProfiles = append(apiProfiles, *apiProfile)
-			}
-
-			return limits.AllowInstanceUpdate(s.GlobalConfig, tx, projectName, name, configRaw, inst.LocalConfig())
-		})
-		if err != nil {
-			return response.SmartError(err)
-		}
-
-		// Update container configuration
-		do = func(op *operations.Operation) error {
-			defer unlock()
-
-			args := db.InstanceArgs{
-				Architecture: architecture,
-				Config:       configRaw.Config,
-				Description:  configRaw.Description,
-				Devices:      deviceConfig.NewDevices(configRaw.Devices),
-				Ephemeral:    configRaw.Ephemeral,
-				Profiles:     apiProfiles,
-				Project:      projectName,
-			}
-
-			err = inst.Update(args, true)
-			if err != nil {
-				return err
-			}
-
-			return nil
-		}
-
-		opType = operationtype.InstanceUpdate
-	} else {
-		// Snapshot Restore
-		do = func(op *operations.Operation) error {
-			defer unlock()
-
-			return instanceSnapRestore(s, projectName, name, configRaw.Restore, configRaw.Stateful)
-		}
-
-		opType = operationtype.SnapshotRestore
-	}
-
-	resources := map[string][]api.URL{}
-	resources["instances"] = []api.URL{*api.NewURL().Path(version.APIVersion, "instances", name)}
-
-	if inst.Type() == instancetype.Container {
-		resources["containers"] = resources["instances"]
-	}
-
-	op, err := operations.OperationCreate(s, projectName, operations.OperationClassTask, opType, resources, nil, do, nil, nil, r)
-	if err != nil {
-		return response.InternalError(err)
-	}
-
-	revert.Success()
-	return operations.OperationResponse(op)
-}
-
-func instanceSnapRestore(s *state.State, projectName string, name string, snap string, stateful bool) error {
-	// normalize snapshot name
-	if !shared.IsSnapshot(snap) {
-		snap = name + shared.SnapshotDelimiter + snap
-	}
-
-	inst, err := instance.LoadByProjectAndName(s, projectName, name)
-	if err != nil {
-		return err
-	}
-
-	source, err := instance.LoadByProjectAndName(s, projectName, snap)
-	if err != nil {
-		switch {
-		case response.IsNotFoundError(err):
-			return fmt.Errorf("Snapshot %s does not exist", snap)
-		default:
-			return err
-		}
-	}
-
-	// Generate a new `volatile.uuid.generation` to differentiate this instance restored from a snapshot from the original instance.
-	source.LocalConfig()["volatile.uuid.generation"] = uuid.New().String()
-
-	err = inst.Restore(source, stateful)
-	if err != nil {
-		return err
-	}
-
-	return nil
+	panic("not implemented")
 }