diff --git a/CHANGELOG.md b/CHANGELOG.md
index 723881c4..f5b51559 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,15 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [1.1.5] - 2019-08-23
+
+### Added
+- "--version" flags to some commands (#66).
+
+### Changed
+- Update k8s.io/client-go to v12.0.0 (#65).
+- Update etcd/clientv3 to 3.3.15 (#66).
+
 ## [1.1.4] - 2019-07-11
 
 Just bump version because v1.1.3 is accidentally unreleased.
@@ -94,7 +103,8 @@ This is the first release
 
 - Implement CNI plugin, coild, coilctl and coil-controller
 
-[Unreleased]: https://github.com/cybozu-go/coil/compare/v1.1.4...HEAD
+[Unreleased]: https://github.com/cybozu-go/coil/compare/v1.1.5...HEAD
+[1.1.5]: https://github.com/cybozu-go/coil/compare/v1.1.4...v1.1.5
 [1.1.4]: https://github.com/cybozu-go/coil/compare/v1.1.3...v1.1.4
 [1.1.3]: https://github.com/cybozu-go/coil/compare/v1.1.2...v1.1.3
 [1.1.2]: https://github.com/cybozu-go/coil/compare/v1.1.1...v1.1.2
diff --git a/RELEASE.md b/RELEASE.md
index aea95bca..08ea500a 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -37,15 +37,16 @@ Bump version
 2. Checkout `master` branch.
 3. Make a branch to release, for example by `git neco dev "$VERSION"`
 4. Edit `CHANGELOG.md` for the new version ([example][]).
-5. Commit the change and push it.
+5. Edit `version.go` for the new version.
+6. Commit the changes and push it.
 
     ```console
     $ git commit -a -m "Bump version to $VERSION"
     $ git neco review
     ```
-6. Merge this branch.
-7. Checkout `master` branch.
-8. Add a git tag, then push it.
+7. Merge this branch.
+8. Checkout `master` branch.
+9. Add a git tag, then push it.
 
     ```console
     $ git tag "v$VERSION"
diff --git a/go.mod b/go.mod
index df59f348..26617995 100644
--- a/go.mod
+++ b/go.mod
@@ -3,14 +3,15 @@ module github.com/cybozu-go/coil
 require (
 	github.com/containernetworking/cni v0.6.0
 	github.com/containernetworking/plugins v0.7.4
-	github.com/coreos/etcd v0.0.0-20190816232144-5cf5d88a18ae
+	github.com/coreos/etcd v3.3.15+incompatible
 	github.com/coreos/go-iptables v0.4.0 // indirect
-	github.com/cybozu-go/etcdutil v1.3.2
+	github.com/cybozu-go/etcdutil v1.3.3
 	github.com/cybozu-go/log v1.5.0
 	github.com/cybozu-go/netutil v1.2.0
 	github.com/cybozu-go/well v1.8.1
 	github.com/google/go-cmp v0.3.0
 	github.com/googleapis/gnostic v0.2.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/mitchellh/go-homedir v1.0.0
 	github.com/mitchellh/mapstructure v1.0.0
 	github.com/onsi/ginkgo v1.8.0
diff --git a/mtest/Makefile b/mtest/Makefile
index 648d1932..e6b90e1a 100644
--- a/mtest/Makefile
+++ b/mtest/Makefile
@@ -14,13 +14,13 @@ endif
 PLACEMAT = /usr/bin/placemat
 GINKGO = env GOFLAGS=-mod=vendor $(GOPATH)/bin/ginkgo
 CURL = curl -fsL
-MANAGEMENT_ETCD_VERSION = 3.3.14
-VAULT_VERSION = 1.0.2
-K8S_VERSION = 1.14.1
+MANAGEMENT_ETCD_VERSION = 3.3.15
+VAULT_VERSION = 1.2.2
+K8S_VERSION = 1.15.3
 PLACEMAT_DATADIR = /var/scratch/placemat
 VM_SHARED_DIR = /mnt/placemat
 CONTAINERD_VERSION = 1.2.7
-CRITOOLS_VERSION = 1.14.0
+CRITOOLS_VERSION = 1.15.0
 CT_VERSION = 0.9.0
 CT = /usr/local/bin/ct
 SUDO = sudo
diff --git a/mtest/pod.go b/mtest/pod.go
index a56edfe3..215a157a 100644
--- a/mtest/pod.go
+++ b/mtest/pod.go
@@ -220,7 +220,7 @@ func TestPod() {
 		coilctlSafe("pool", "show", "--json", "default", addressPool)
 
 		By("creating 4 pods to node1")
-		overrides := fmt.Sprintf(`{ "apiVersion": "apps/v1beta1", "spec": { "template": { "spec": { "nodeSelector": { "kubernetes.io/hostname": "%s" } } } } }`, node1)
+		overrides := fmt.Sprintf(`{ "apiVersion": "apps/v1", "spec": { "template": { "spec": { "nodeSelector": { "kubernetes.io/hostname": "%s" } } } } }`, node1)
 		overrideFile := remoteTempFile(overrides)
 		_, stderr, err := kubectl("run", "nginx", "--image=nginx", "--replicas=4", "--overrides=\"$(cat "+overrideFile+")\"")
 		Expect(err).NotTo(HaveOccurred(), "stderr: %s", stderr)
diff --git a/mtest/setup-cke.sh b/mtest/setup-cke.sh
index 17e05d1f..0887c049 100755
--- a/mtest/setup-cke.sh
+++ b/mtest/setup-cke.sh
@@ -2,7 +2,7 @@
 
 VAULT=/data/vault
 CKECLI=/opt/bin/ckecli
-CKE_VERSION=1.14.0-rc1
+CKE_VERSION=1.15.0-rc.1
 
 if [ ! -f /usr/bin/jq ]; then
     echo "please wait; cloud-init will install jq."
diff --git a/pkg/coil-controller/cmd/root.go b/pkg/coil-controller/cmd/root.go
index 92f41128..20e55b18 100644
--- a/pkg/coil-controller/cmd/root.go
+++ b/pkg/coil-controller/cmd/root.go
@@ -29,8 +29,9 @@ var etcdConfig *etcdutil.Config
 
 // rootCmd represents the base command when called without any subcommands
 var rootCmd = &cobra.Command{
-	Use:   "coil-controller",
-	Short: "A kubernetes controller for coil",
+	Use:     "coil-controller",
+	Version: coil.Version,
+	Short:   "A kubernetes controller for coil",
 	Long: `coil-controller is a Kubernetes controller to maintain coil resources.
 
 It should be deployed as a Deployment pod in Kunernetes.
diff --git a/pkg/coilctl/cmd/root.go b/pkg/coilctl/cmd/root.go
index 226a39e8..76c10432 100644
--- a/pkg/coilctl/cmd/root.go
+++ b/pkg/coilctl/cmd/root.go
@@ -40,8 +40,9 @@ var etcdConfig *etcdutil.Config
 
 // rootCmd represents the base command when called without any subcommands
 var rootCmd = &cobra.Command{
-	Use:   "coilctl",
-	Short: "control and show coil settings",
+	Use:     "coilctl",
+	Version: coil.Version,
+	Short:   "control and show coil settings",
 	Long: `coilctl is a command-line tool to control and show coil settings.
 
 It directly communicates with etcd.  You need to prepare a
diff --git a/pkg/coild/cmd/root.go b/pkg/coild/cmd/root.go
index ef8f9997..f4a7a39c 100644
--- a/pkg/coild/cmd/root.go
+++ b/pkg/coild/cmd/root.go
@@ -54,8 +54,9 @@ var etcdConfig *etcdutil.Config
 
 // rootCmd represents the base command when called without any subcommands
 var rootCmd = &cobra.Command{
-	Use:   "coild",
-	Short: "Backend service to allocate IP address",
+	Use:     "coild",
+	Version: coil.Version,
+	Short:   "Backend service to allocate IP address",
 	Long: `coild is a backend service to allocate IP address.
 
 It normally run as a DaemonSet container in Kubernetes.
diff --git a/vendor/github.com/cybozu-go/etcdutil/CHANGELOG.md b/vendor/github.com/cybozu-go/etcdutil/CHANGELOG.md
index e633345c..82e73c49 100644
--- a/vendor/github.com/cybozu-go/etcdutil/CHANGELOG.md
+++ b/vendor/github.com/cybozu-go/etcdutil/CHANGELOG.md
@@ -5,6 +5,10 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
 
+## [1.3.3] - 2019-08-20
+### Changed
+- Update etcd client library as of [etcd-3.3.15](https://github.com/etcd-io/etcd/releases/tag/v3.3.15).
+
 ## [1.3.2] - 2019-08-19
 ### Changed
 - Update etcd client library as of [etcd-3.3.14](https://github.com/etcd-io/etcd/releases/tag/v3.3.14).
@@ -38,7 +42,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 This is the first release.
 
-[Unreleased]: https://github.com/cybozu-go/etcdutil/compare/v1.3.2...HEAD
+[Unreleased]: https://github.com/cybozu-go/etcdutil/compare/v1.3.3...HEAD
+[1.3.3]: https://github.com/cybozu-go/etcdutil/compare/v1.3.2...v1.3.3
 [1.3.2]: https://github.com/cybozu-go/etcdutil/compare/v1.3.1...v1.3.2
 [1.3.1]: https://github.com/cybozu-go/etcdutil/compare/v1.3.0...v1.3.1
 [1.3.0]: https://github.com/cybozu-go/etcdutil/compare/v1.2.2...v1.3.0
diff --git a/vendor/github.com/cybozu-go/etcdutil/flags.go b/vendor/github.com/cybozu-go/etcdutil/flags.go
index c3c44631..60567f7f 100644
--- a/vendor/github.com/cybozu-go/etcdutil/flags.go
+++ b/vendor/github.com/cybozu-go/etcdutil/flags.go
@@ -21,16 +21,16 @@ func (v endpointsVal) String() string {
 
 func (v endpointsVal) Set(s string) error {
 	endpoints := strings.Split(s, ",")
-	filterd := endpoints[:0]
+	filtered := endpoints[:0]
 	for _, e := range endpoints {
 		if len(e) != 0 {
-			filterd = append(filterd, e)
+			filtered = append(filtered, e)
 		}
 	}
-	if len(filterd) == 0 {
+	if len(filtered) == 0 {
 		return errors.New("no endpoints")
 	}
-	v.Config.Endpoints = filterd
+	v.Config.Endpoints = filtered
 	return nil
 }
 
diff --git a/vendor/github.com/cybozu-go/etcdutil/go.mod b/vendor/github.com/cybozu-go/etcdutil/go.mod
index ef271064..9221a20f 100644
--- a/vendor/github.com/cybozu-go/etcdutil/go.mod
+++ b/vendor/github.com/cybozu-go/etcdutil/go.mod
@@ -2,29 +2,48 @@ module github.com/cybozu-go/etcdutil
 
 require (
 	github.com/BurntSushi/toml v0.3.1
+	github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 // indirect
 	github.com/coreos/bbolt v1.3.3 // indirect
-	github.com/coreos/etcd v0.0.0-20190816232144-5cf5d88a18ae
+	github.com/coreos/etcd v3.3.15+incompatible
+	github.com/coreos/go-semver v0.2.0 // indirect
 	github.com/coreos/go-systemd v0.0.0-20181004131557-b14d3eb023cc // indirect
 	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
+	github.com/gogo/protobuf v1.2.1 // indirect
 	github.com/golang/groupcache v0.0.0-20180924190550-6f2cf27854a4 // indirect
+	github.com/golang/protobuf v1.3.2 // indirect
+	github.com/google/btree v1.0.0 // indirect
+	github.com/google/uuid v1.0.0 // indirect
 	github.com/gorilla/websocket v1.4.0 // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.5.1 // indirect
+	github.com/jonboulle/clockwork v0.1.0 // indirect
+	github.com/json-iterator/go v1.1.7 // indirect
 	github.com/konsorten/go-windows-terminal-sequences v1.0.1 // indirect
 	github.com/kr/pretty v0.1.0 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
+	github.com/pkg/errors v0.8.1 // indirect
 	github.com/prometheus/client_golang v0.8.0 // indirect
 	github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910 // indirect
 	github.com/prometheus/common v0.0.0-20180801064454-c7de2306084e // indirect
 	github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d // indirect
 	github.com/sirupsen/logrus v1.1.1 // indirect
+	github.com/soheilhy/cmux v0.1.4 // indirect
 	github.com/spf13/pflag v1.0.3
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20171017195756-830351dc03c6 // indirect
+	github.com/xiang90/probing v0.0.0-20160813154853-07dd2e8dfe18 // indirect
 	go.etcd.io/bbolt v1.3.3 // indirect
 	go.uber.org/atomic v1.4.0 // indirect
+	go.uber.org/multierr v1.1.0 // indirect
+	go.uber.org/zap v1.10.0 // indirect
+	golang.org/x/net v0.0.0-20190813000000-74dc4d7220e7 // indirect
+	golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223 // indirect
 	golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2 // indirect
 	google.golang.org/genproto v0.0.0-20181004005441-af9cb2a35e7f // indirect
 	google.golang.org/grpc v1.23.0
 	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
+	gopkg.in/yaml.v2 v2.2.2 // indirect
 	sigs.k8s.io/yaml v1.1.0
 )
diff --git a/vendor/modules.txt b/vendor/modules.txt
index e1e92f5f..5a0f0fab 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -11,7 +11,7 @@ github.com/containernetworking/plugins/pkg/ipam
 github.com/containernetworking/plugins/pkg/ns
 github.com/containernetworking/plugins/pkg/utils/hwaddr
 github.com/containernetworking/plugins/pkg/utils/sysctl
-# github.com/coreos/etcd v0.0.0-20190816232144-5cf5d88a18ae
+# github.com/coreos/etcd v3.3.15+incompatible
 github.com/coreos/etcd/clientv3
 github.com/coreos/etcd/clientv3/clientv3util
 github.com/coreos/etcd/clientv3/namespace
@@ -35,7 +35,7 @@ github.com/coreos/go-iptables/iptables
 github.com/coreos/go-systemd/journal
 # github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f
 github.com/coreos/pkg/capnslog
-# github.com/cybozu-go/etcdutil v1.3.2
+# github.com/cybozu-go/etcdutil v1.3.3
 github.com/cybozu-go/etcdutil
 # github.com/cybozu-go/log v1.5.0
 github.com/cybozu-go/log
diff --git a/version.go b/version.go
new file mode 100644
index 00000000..9dda30f9
--- /dev/null
+++ b/version.go
@@ -0,0 +1,4 @@
+package coil
+
+// Version represents the version of coil
+const Version = "1.1.5"