diff --git a/cmd/dagger/cmd/version.go b/cmd/dagger/cmd/version.go
index 2faf3c68..e8ac6f81 100644
--- a/cmd/dagger/cmd/version.go
+++ b/cmd/dagger/cmd/version.go
@@ -46,7 +46,7 @@ var versionCmd = &cobra.Command{
 			runtime.GOOS, runtime.GOARCH,
 		)
 
-		if check := viper.GetBool("check"); check != false {
+		if check := viper.GetBool("check"); check {
 			upToDate, err := isVersionLatest()
 			if err != nil {
 				fmt.Println("error: could not check version.")
@@ -110,10 +110,12 @@ func getOnlineVersion(currentVersion *goVersion.Version) (*goVersion.Version, er
 		return nil, err
 	}
 
+	defer resp.Body.Close()
 	data, err := ioutil.ReadAll(resp.Body)
 	if err != nil {
 		return nil, err
 	}
+
 	latestVersion := strings.TrimSuffix(string(data), "\n")
 	return goVersion.NewVersion(latestVersion)
 }
@@ -164,7 +166,7 @@ func checkVersion() {
 
 		// Update check timestamps file
 		now := time.Now().Format(time.RFC3339)
-		ioutil.WriteFile(daggerDirectory+"/version_check.txt", []byte(now), 0644)
+		ioutil.WriteFile(daggerDirectory+"/version_check.txt", []byte(now), 0600)
 	}
 }
 
diff --git a/doc/install.md b/doc/install.md
index 5f245931..bd2dd5a0 100644
--- a/doc/install.md
+++ b/doc/install.md
@@ -1,5 +1,11 @@
 # Installing Dagger
 
+## Summary
+ - [Option 1 (Mac OS only): install from Homebrew](#option-1--mac-os-only---install-from-homebrew)
+ - [Option 2: install from a shell script](#option-2--install-from-a-shell-script)
+ - [Option 3: Manually fetch the latest binary release from Github](#option-3--manually-fetch-the-latest-binary-release-from-github)
+ - [Option 4: Compile from source](#option-4--compile-from-source)
+
 ## Option 1 (Mac OS only): install from Homebrew
 
 From your Mac OS terminal, run the following command:
@@ -8,12 +14,14 @@ From your Mac OS terminal, run the following command:
 brew install dagger/tap/dagger
 ```
 
+> :bulb: Verify the installation with `dagger version`.
+
 ## Option 2: install from a shell script
 
 From a terminal, run the following command:
 
 ```shell
-curl -sfL https://dagger-io.s3.amazonaws.com/dagger/install.sh | sh
+curl -sfL https://releases.dagger.io/dagger/install.sh | sh
 ```
 
 You now have the dagger binary in the local directory under `./bin/dagger`.
@@ -24,12 +32,16 @@ You can then install it globally on your system:
 sudo mv ./bin/dagger /usr/local/bin
 ```
 
+> :bulb: Verify the installation with `dagger version`.
+
 ## Option 3: Manually fetch the latest binary release from Github
 
 Open your web browser to [the latest release](https://github.com/dagger/dagger/releases/latest).
 
 From the **assets** section, download the archive corresponding to your OS and Arch.
 
+> :bulb: Verify the installation with `dagger version`.
+
 ## Option 4: Compile from source
 
 You will need [Go](https://golang.org) version 1.16 or later.
@@ -51,3 +63,5 @@ cd dagger; make
 ```shell
 cp ./cmd/dagger/dagger /usr/local/bin
 ```
+
+> :bulb: Verify the installation with `dagger version`.
\ No newline at end of file
diff --git a/doc/update.md b/doc/update.md
new file mode 100644
index 00000000..0b0c4cea
--- /dev/null
+++ b/doc/update.md
@@ -0,0 +1,67 @@
+# Updating Dagger
+
+## Summary
+ - [Option 1: (Mac OS only): update from Homebrew](#option-1--mac-os-only---update-from-homebrew)
+ - [Option 2: update from a shell script](#option-2--update-from-a-shell-script)
+ - [Option 3: Manually fetch the latest binary release from Github](#option-3--manually-fetch-the-latest-binary-release-from-github)
+ - [Option 4: Compile from source](#option-4--compile-from-source)
+
+## Option 1: (Mac OS only): update from Homebrew
+
+From your Mac OS terminal, run the following command:
+
+```shell
+brew update dagger/tap/dagger
+```
+
+> :bulb: Verify the update with `dagger version`.
+
+## Option 2: update from a shell script
+
+From a terminal, run the following command:
+
+```shell
+curl -sfL https://releases.dagger.io/dagger/install.sh | sh
+```
+
+You now have the dagger binary in the local directory under `./bin/dagger`.
+
+You can then update it globally on your system:
+
+```shell
+sudo mv ./bin/dagger /usr/local/bin
+```
+
+> :bulb: Verify the update with `dagger version`.
+
+## Option 3: Manually fetch the latest binary release from Github
+
+Open your web browser to [the latest release](https://github.com/dagger/dagger/releases/latest).
+
+From the **assets** section, download the archive corresponding to your OS and Arch.
+
+> :bulb: Verify the update with `dagger version`.
+
+## Option 4: Compile from source
+
+You will need [Go](https://golang.org) version 1.16 or later.
+
+1. Clone the dagger repository
+
+```shell
+git clone https://github.com/dagger/dagger.git
+```
+
+2. Build the `dagger` binary.
+
+```shell
+cd dagger; make
+```
+
+3. Copy the `dagger` tool to a location listed in your `$PATH`. For example, to copy it to `/usr/local/bin`:
+
+```shell
+cp ./cmd/dagger/dagger /usr/local/bin
+```
+
+> :bulb: Verify the update with `dagger version`.
\ No newline at end of file