From 64450ae3f89b8f9b5288224c5a7d109a166cf22a Mon Sep 17 00:00:00 2001
From: Victor Vieux <victor.vieux@dotcloud.com>
Date: Wed, 3 Jul 2013 17:11:00 +0000
Subject: [PATCH 1/3] add last version

---
 commands.go    |  9 +++++++++
 utils/utils.go | 22 ++++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/commands.go b/commands.go
index 6e1e5e88c2..e275bdd671 100644
--- a/commands.go
+++ b/commands.go
@@ -407,6 +407,15 @@ func (cli *DockerCli) CmdVersion(args ...string) error {
 	if out.GoVersion != "" {
 		fmt.Fprintf(cli.out, "Go version: %s\n", out.GoVersion)
 	}
+
+	release := utils.GetReleaseVersion()
+	if release != "" {
+		fmt.Fprintf(cli.out, "Last stable version: %s", release)
+		if VERSION != release || out.Version != release {
+			fmt.Fprintf(cli.out, ", please update docker")
+		}
+		fmt.Fprintf(cli.out, "\n")
+	}
 	return nil
 }
 
diff --git a/utils/utils.go b/utils/utils.go
index 2f2a52867e..b4a41ea420 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -687,3 +687,25 @@ func ParseHost(host string, port int, addr string) string {
 	}
 	return fmt.Sprintf("tcp://%s:%d", host, port)
 }
+
+func GetReleaseVersion() string {
+	type githubTag struct {
+		Name string `json:"name"`
+	}
+
+	resp, err := http.Get("https://api.github.com/repos/dotcloud/docker/tags")
+	if err != nil {
+		return ""
+	}
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return ""
+	}
+	var tags []githubTag
+	err = json.Unmarshal(body, &tags)
+	if err != nil || len(tags) == 0 {
+		return ""
+	}
+	return strings.TrimPrefix(tags[0].Name, "v")
+}

From 0afed3eded0950b5899729714fb11d6a7322301e Mon Sep 17 00:00:00 2001
From: Victor Vieux <victor.vieux@dotcloud.com>
Date: Thu, 18 Jul 2013 20:56:41 +0000
Subject: [PATCH 2/3] handle -dev

---
 commands.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/commands.go b/commands.go
index 5f3913f9c2..7b70faa198 100644
--- a/commands.go
+++ b/commands.go
@@ -436,7 +436,7 @@ func (cli *DockerCli) CmdVersion(args ...string) error {
 	release := utils.GetReleaseVersion()
 	if release != "" {
 		fmt.Fprintf(cli.out, "Last stable version: %s", release)
-		if VERSION != release || out.Version != release {
+		if strings.Trim(VERSION, "-dev") != release || strings.Trim(out.Version, "-dev") != release {
 			fmt.Fprintf(cli.out, ", please update docker")
 		}
 		fmt.Fprintf(cli.out, "\n")

From e4752c8c1a09fc3cc96dbb9be7183b271db3d6b7 Mon Sep 17 00:00:00 2001
From: Victor Vieux <victor.vieux@dotcloud.com>
Date: Tue, 30 Jul 2013 16:39:35 +0000
Subject: [PATCH 3/3] Add check that the request is good

---
 utils/utils.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/utils/utils.go b/utils/utils.go
index 190dc175cd..def5ae5a50 100644
--- a/utils/utils.go
+++ b/utils/utils.go
@@ -736,6 +736,9 @@ func GetReleaseVersion() string {
 		return ""
 	}
 	defer resp.Body.Close()
+	if resp.ContentLength > 24 || resp.StatusCode != 200 {
+		return ""
+	}
 	body, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return ""