diff --git a/docs/MAINTAINERS.md b/docs/MAINTAINERS.md
index 6a477ad0..229fa016 100644
--- a/docs/MAINTAINERS.md
+++ b/docs/MAINTAINERS.md
@@ -18,6 +18,8 @@ Preparing a new version
 - Re-take `screenshot.png` so it displays the latest version in the bottom
 right corner.
 
+- Revise the `updates.semverRange` version in `package.json`
+
 - Commit the changes with the version number as the commit title, including the
 `v` prefix, to `master`. For example:
 
diff --git a/docs/PUBLISHING.md b/docs/PUBLISHING.md
index a35454b0..2cd05443 100644
--- a/docs/PUBLISHING.md
+++ b/docs/PUBLISHING.md
@@ -4,6 +4,48 @@ Publishing Etcher
 This is a small guide to package and publish Etcher to all supported operating
 systems.
 
+Release Types
+-------------
+
+Etcher supports **production** and **snapshot** release types. Each is
+published to a different S3 bucket, and production release types are code
+signed, while snapshot release types aren't and include a short git commit-hash
+as a build number. For example, `1.0.0-beta.19` is a production release type,
+while `1.0.0-beta.19+531ab82` is a snapshot release type.
+
+In terms of comparison: `1.0.0-beta.19` (production) < `1.0.0-beta.19+531ab82`
+(snapshot) < `1.0.0-rc.1` (production) < `1.0.0-rc.1+7fde24a` (snapshot) <
+`1.0.0` (production) < `1.0.0+2201e5f` (snapshot). Keep in mind that if you're
+running a production release type, you'll only be prompted to update to
+production release types, and if you're running a snapshot release type, you'll
+only be prompted to update to other snapshot release types.
+
+The build system creates (and publishes) snapshot release types by default, but
+you can build a specific release type by setting the `RELEASE_TYPE` make
+variable.  For example:
+
+```sh
+make <target> RELEASE_TYPE=snapshot
+make <target> RELEASE_TYPE=production
+```
+
+We can control the version range a specific Etcher version will consider when
+showing the update notification dialog by tweaking the `updates.semverRange`
+property of `package.json`.
+
+Update Channels
+---------------
+
+Etcher has a setting to include the unstable update channel. If this option is
+set, Etcher will consider both stable and unstable versions when showing the
+update notifier dialog. Unstable versions are the ones that contain a `beta`
+pre-release tag. For example:
+
+- Production unstable version: `1.4.0-beta.1`
+- Snapshot unstable version: `1.4.0-beta.1+7fde24a`
+- Production stable version: `1.4.0`
+- Snapshot stable version: `1.4.0+7fde24a`
+
 Signing
 -------
 
@@ -29,40 +71,31 @@ employee by asking for it from the relevant people.
 Packaging
 ---------
 
+The resulting installers will be saved to `release/out`.
+
+Run the following commands:
 
 ### OS X
 
-Run the following command:
-
 ```sh
 make electron-installer-dmg
 make electron-installer-app-zip
 ```
 
-The resulting installers will be saved to `release/out`.
-
 ### GNU/Linux
 
-Run the following command:
-
 ```sh
 make electron-installer-appimage
 make electron-installer-debian
 ```
 
-The resulting installers will be saved to `release/out`.
-
 ### Windows
 
-Run the following command:
-
 ```sh
 make electron-installer-zip
 make electron-installer-nsis
 ```
 
-The resulting installers will be saved to `etcher-release/installers`.
-
 Publishing to Bintray
 ---------------------
 
@@ -76,7 +109,7 @@ Make sure you set the following environment variables:
 Run the following command:
 
 ```sh
-make publish-bintray-debian RELEASE_TYPE=<production|snapshot>
+make publish-bintray-debian
 ```
 
 Publishing to S3
@@ -91,7 +124,7 @@ Run the following command to publish all files for the current combination of
 _platform_ and _arch_ (building them if necessary):
 
 ```sh
-make publish-aws-s3 RELEASE_TYPE=<production|snapshot>
+make publish-aws-s3
 ```
 
 Also add links to each AWS S3 file in [GitHub Releases][github-releases]. See
diff --git a/docs/USER-DOCUMENTATION.md b/docs/USER-DOCUMENTATION.md
index 6bf9b1f7..1dc46964 100644
--- a/docs/USER-DOCUMENTATION.md
+++ b/docs/USER-DOCUMENTATION.md
@@ -149,6 +149,21 @@ In Windows:
 set ETCHER_DISABLE_UPDATES=1
 ```
 
+Simulate an update alert
+------------------------
+
+You can set the `ETCHER_FAKE_S3_LATEST_VERSION` environment variable to a valid
+semver version (greater than the current version) to trick the application into
+thinking that what you put there is the latest available version, therefore
+causing the update notification dialog to be presented at startup.
+
+Note that the value of the variable will be ignored if it doesn't match the
+release type of the current application version. For example, setting the
+variable to a production version (e.g. `ETCHER_FAKE_S3_LATEST_VERSION=2.0.0`)
+will be ignored if you're running a snapshot build, and vice-versa.
+
+See [`PUBLISHING.md`][publishing] for more details about release types.
+
 Recovering broken drives
 ------------------------
 
@@ -223,6 +238,7 @@ platforms.
 [electron]: http://electron.atom.io
 [electron-supported-platforms]: https://github.com/electron/electron/blob/master/docs/tutorial/supported-platforms.md
 [etcher-cli]: https://github.com/resin-io/etcher/blob/master/docs/CLI.md
+[publishing]: https://github.com/resin-io/etcher/blob/master/docs/PUBLISHING.md
 [windows-usb-tool]: https://www.microsoft.com/en-us/download/windows-usb-dvd-download-tool
 [rufus]: https://rufus.akeo.ie
 [unetbootin]: https://unetbootin.github.io
diff --git a/lib/gui/app.js b/lib/gui/app.js
index ad3b1471..ace089ca 100644
--- a/lib/gui/app.js
+++ b/lib/gui/app.js
@@ -28,10 +28,15 @@ var angular = require('angular');
 
 const electron = require('electron');
 const Bluebird = require('bluebird');
+const semver = require('semver');
+const _ = require('lodash');
 const EXIT_CODES = require('../shared/exit-codes');
 const messages = require('../shared/messages');
+const s3Packages = require('../shared/s3-packages');
+const release = require('../shared/release');
 const packageJSON = require('../../package.json');
 const flashState = require('./models/flash-state');
+const settings = require('./models/settings');
 const windowProgress = require('./os/window-progress');
 
 const Store = require('./models/store');
@@ -86,23 +91,40 @@ app.run(() => {
 app.run((AnalyticsService, ErrorService, UpdateNotifierService, SelectionStateModel) => {
   AnalyticsService.logEvent('Application start');
 
-  const shouldCheckForUpdates = UpdateNotifierService.shouldCheckForUpdates();
+  const currentVersion = packageJSON.version;
+  const currentReleaseType = release.getReleaseType(currentVersion);
+  const shouldCheckForUpdates = UpdateNotifierService.shouldCheckForUpdates({
+    ignoreSleepUpdateCheck: currentReleaseType !== release.RELEASE_TYPE.PRODUCTION
+  });
 
-  if (!shouldCheckForUpdates || process.env.ETCHER_DISABLE_UPDATES) {
+  if (_.some([
+    !shouldCheckForUpdates,
+    process.env.ETCHER_DISABLE_UPDATES,
+    currentReleaseType === release.RELEASE_TYPE.UNKNOWN
+  ])) {
     AnalyticsService.logEvent('Not checking for updates', {
       shouldCheckForUpdates,
-      disableUpdatesEnvironmentVariable: process.env.ETCHER_DISABLE_UPDATES
+      disableUpdatesEnvironmentVariable: process.env.ETCHER_DISABLE_UPDATES,
+      releaseType: currentReleaseType
     });
     return;
   }
 
+  const updateSemverRange = packageJSON.updates.semverRange;
+  const includeUnstableChannel = settings.get('includeUnstableUpdateChannel');
+
   AnalyticsService.logEvent('Checking for updates', {
-    currentVersion: packageJSON.version
+    currentVersion,
+    releaseType: currentReleaseType,
+    updateSemverRange,
+    includeUnstableChannel
   });
 
-  UpdateNotifierService.isLatestVersion().then((isLatestVersion) => {
-
-    if (isLatestVersion) {
+  s3Packages.getLatestVersion(currentReleaseType, {
+    range: updateSemverRange,
+    includeUnstableChannel
+  }).then((latestVersion) => {
+    if (semver.gte(currentVersion, latestVersion || '0.0.0')) {
       AnalyticsService.logEvent('Update notification skipped', {
         reason: 'Latest version'
       });
@@ -121,12 +143,14 @@ app.run((AnalyticsService, ErrorService, UpdateNotifierService, SelectionStateMo
       return Bluebird.resolve();
     }
 
-    AnalyticsService.logEvent('Notifying update');
-
-    return UpdateNotifierService.notify();
+    AnalyticsService.logEvent('Notifying update', {
+      latestVersion
+    });
 
+    return UpdateNotifierService.notify(latestVersion, {
+      allowSleepUpdateCheck: currentReleaseType === release.RELEASE_TYPE.PRODUCTION
+    });
   }).catch(ErrorService.reportException);
-
 });
 
 app.run((AnalyticsService) => {
diff --git a/lib/gui/components/update-notifier/services/update-notifier.js b/lib/gui/components/update-notifier/services/update-notifier.js
index e7a5ea62..8958c786 100644
--- a/lib/gui/components/update-notifier/services/update-notifier.js
+++ b/lib/gui/components/update-notifier/services/update-notifier.js
@@ -17,104 +17,35 @@
 'use strict';
 
 const _ = require('lodash');
-const semver = require('semver');
-const etcherLatestVersion = require('etcher-latest-version');
 const units = require('../../../../shared/units');
 const settings = require('../../../models/settings');
 
-module.exports = function($http, $q, ModalService, UPDATE_NOTIFIER_SLEEP_DAYS, ManifestBindService) {
+module.exports = function(ModalService, UPDATE_NOTIFIER_SLEEP_DAYS) {
 
   /**
-   * @summary The current application version
-   * @constant
-   * @private
-   * @type {String}
-   */
-  const CURRENT_VERSION = ManifestBindService.get('version');
-
-  /**
-   * @summary Get the latest available Etcher version
-   * @function
-   * @private
-   * @description
-   * We assume the received latest version number will not increase
-   * while Etcher is running and memoize it
-   *
-   * @fulfil {String} - latest version
-   * @returns {Promise}
-   *
-   * @example
-   * UpdateNotifierService.getLatestVersion().then((latestVersion) => {
-   *   console.log(`The latest version is: ${latestVersion}`);
-   * });
-   */
-  this.getLatestVersion = _.memoize(() => {
-    return $q((resolve, reject) => {
-      return etcherLatestVersion((url, callback) => {
-        return $http.get(url).then((response) => {
-          return callback(null, response.data);
-        }).catch((error) => {
-          return callback(error);
-        });
-      }, (error, latestVersion) => {
-        if (error) {
-
-          // The error status equals this number if the request
-          // couldn't be made successfully, for example, because
-          // of a timeout on an unstable network connection.
-          const ERROR_CODE_UNSUCCESSFUL_REQUEST = -1;
-
-          if (error.status === ERROR_CODE_UNSUCCESSFUL_REQUEST) {
-            return resolve(CURRENT_VERSION);
-          }
-
-          return reject(error);
-        }
-
-        return resolve(latestVersion);
-      });
-    });
-
-  // Arbitrary identifier for the memoization function
-  }, _.constant('latest-version'));
-
-  /**
-   * @summary Check if the current version is the latest version
-   * @function
-   * @public
-   *
-   * @fulfil {Boolean} - is latest version
-   * @returns {Promise}
-   *
-   * @example
-   * UpdateNotifierService.isLatestVersion().then((isLatestVersion) => {
-   *   if (!isLatestVersion) {
-   *     console.log('There is an update available');
-   *   }
-   * });
-   */
-  this.isLatestVersion = () => {
-    return this.getLatestVersion().then((version) => {
-      return semver.gte(CURRENT_VERSION, version);
-    });
-  };
-
-  /**
-   * @summary Determine if its time to check for updates
+   * @summary Determine if it's time to check for updates
    * @function
    * @public
    *
+   * @param {Object} [options] - options
+   * @param {Boolean} [options.ignoreSleepUpdateCheck] - ignore sleep update check
    * @returns {Boolean} should check for updates
    *
    * @example
-   * if (UpdateNotifierService.shouldCheckForUpdates()) {
+   * if (UpdateNotifierService.shouldCheckForUpdates({
+   *   ignoreSleepUpdateCheck: false
+   * })) {
    *   console.log('We should check for updates!');
    * }
    */
-  this.shouldCheckForUpdates = () => {
+  this.shouldCheckForUpdates = (options = {}) => {
     const lastUpdateNotify = settings.get('lastUpdateNotify');
 
-    if (!settings.get('sleepUpdateCheck') || !lastUpdateNotify) {
+    if (_.some([
+      !settings.get('sleepUpdateCheck'),
+      !lastUpdateNotify,
+      _.get(options, [ 'ignoreSleepUpdateCheck' ], false)
+    ])) {
       return true;
     }
 
@@ -131,24 +62,28 @@ module.exports = function($http, $q, ModalService, UPDATE_NOTIFIER_SLEEP_DAYS, M
    * @function
    * @public
    *
+   * @param {String} version - version
+   * @param {Object} [options] - options
+   * @param {Boolean} [options.allowSleepUpdateCheck=true] - allow sleeping the update check
    * @returns {Promise}
    *
    * @example
-   * UpdateNotifierService.notify();
+   * UpdateNotifierService.notify('1.0.0-beta.16', {
+   *   allowSleepUpdateCheck: true
+   * });
    */
-  this.notify = () => {
-    return this.getLatestVersion().then((version) => {
-      return ModalService.open({
-        template: './components/update-notifier/templates/update-notifier-modal.tpl.html',
-        controller: 'UpdateNotifierController as modal',
-        size: 'update-notifier',
-        resolve: {
-          options: _.constant({
-            version
-          })
-        }
-      }).result;
-    });
+  this.notify = (version, options = {}) => {
+    return ModalService.open({
+      template: './components/update-notifier/templates/update-notifier-modal.tpl.html',
+      controller: 'UpdateNotifierController as modal',
+      size: 'update-notifier',
+      resolve: {
+        options: _.constant({
+          version,
+          allowSleepUpdateCheck: _.get(options, [ 'allowSleepUpdateCheck' ], true)
+        })
+      }
+    }).result;
   };
 
 };
diff --git a/lib/gui/components/update-notifier/templates/update-notifier-modal.tpl.html b/lib/gui/components/update-notifier/templates/update-notifier-modal.tpl.html
index d3f58784..82d81775 100644
--- a/lib/gui/components/update-notifier/templates/update-notifier-modal.tpl.html
+++ b/lib/gui/components/update-notifier/templates/update-notifier-modal.tpl.html
@@ -6,7 +6,7 @@
 <div class="modal-body">
   <p>Etcher {{ ::modal.options.version }} is available for download</p>
 
-  <div class="checkbox">
+  <div class="checkbox" ng-if="modal.options.allowSleepUpdateCheck">
     <label>
       <input type="checkbox"
         ng-model="modal.sleepUpdateCheck"
diff --git a/lib/gui/components/update-notifier/update-notifier.js b/lib/gui/components/update-notifier/update-notifier.js
index 6c2f55b0..3c1db3d7 100644
--- a/lib/gui/components/update-notifier/update-notifier.js
+++ b/lib/gui/components/update-notifier/update-notifier.js
@@ -24,7 +24,6 @@ const angular = require('angular');
 const MODULE_NAME = 'Etcher.Components.UpdateNotifier';
 const UpdateNotifier = angular.module(MODULE_NAME, [
   require('../modal/modal'),
-  require('../../utils/manifest-bind/manifest-bind'),
   require('../../os/open-external/open-external'),
   require('../../modules/analytics')
 ]);
diff --git a/lib/gui/css/main.css b/lib/gui/css/main.css
index 84af1c07..87fbe405 100644
--- a/lib/gui/css/main.css
+++ b/lib/gui/css/main.css
@@ -6586,7 +6586,7 @@ body {
 
 .page-settings .subtitle {
   color: #fff;
-  margin-top: 30px;
+  margin-top: 20px;
   margin-bottom: 15px; }
 
 /*
diff --git a/lib/gui/models/store.js b/lib/gui/models/store.js
index c13058f6..57e52adb 100644
--- a/lib/gui/models/store.js
+++ b/lib/gui/models/store.js
@@ -23,7 +23,9 @@ const persistState = require('redux-localstorage');
 const uuidV4 = require('uuid/v4');
 const constraints = require('../../shared/drive-constraints');
 const errors = require('../../shared/errors');
+const release = require('../../shared/release');
 const fileExtensions = require('../../shared/file-extensions');
+const packageJSON = require('../../../package.json');
 
 /**
  * @summary Application default state
@@ -46,6 +48,7 @@ const DEFAULT_STATE = Immutable.fromJS({
     unmountOnSuccess: true,
     validateWriteOnSuccess: true,
     sleepUpdateCheck: false,
+    includeUnstableUpdateChannel: !release.isStableRelease(packageJSON.version),
     lastUpdateNotify: null
   }
 });
diff --git a/lib/gui/pages/settings/styles/_settings.scss b/lib/gui/pages/settings/styles/_settings.scss
index 2a9fcbf9..c896bbc6 100644
--- a/lib/gui/pages/settings/styles/_settings.scss
+++ b/lib/gui/pages/settings/styles/_settings.scss
@@ -28,6 +28,6 @@
 
 .page-settings .subtitle {
   color: $palette-theme-dark-foreground;
-  margin-top: 30px;
+  margin-top: 20px;
   margin-bottom: 15px;
 }
diff --git a/lib/gui/pages/settings/templates/settings.tpl.html b/lib/gui/pages/settings/templates/settings.tpl.html
index 51e8e67a..cd9fc578 100644
--- a/lib/gui/pages/settings/templates/settings.tpl.html
+++ b/lib/gui/pages/settings/templates/settings.tpl.html
@@ -40,6 +40,16 @@
     </label>
   </div>
 
+  <div class="checkbox">
+    <label>
+      <input type="checkbox"
+        ng-model="settings.currentData.includeUnstableUpdateChannel"
+        ng-change="settings.toggle('includeUnstableUpdateChannel')">
+
+      <span>Include unstable update channel</span>
+    </label>
+  </div>
+
   <h3 class="subtitle">Advanced</h3>
 
   <div class="checkbox">
diff --git a/lib/shared/release.js b/lib/shared/release.js
new file mode 100644
index 00000000..8896f593
--- /dev/null
+++ b/lib/shared/release.js
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2017 resin.io
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const _ = require('lodash');
+const semver = require('semver');
+
+/**
+ * @summary Application release types
+ * @namespace RELEASE_TYPE
+ * @public
+ */
+exports.RELEASE_TYPE = {
+
+  /**
+   * @property {String} PRODUCTION
+   * @memberof RELEASE_TYPE
+   * @description
+   * Production release type
+   */
+  PRODUCTION: 'PRODUCTION',
+
+  /**
+   * @property {String} SNAPSHOT
+   * @memberof RELEASE_TYPE
+   * @description
+   * Snapshot release type
+   */
+  SNAPSHOT: 'SNAPSHOT',
+
+  /**
+   * @property {String} UNKNOWN
+   * @memberof RELEASE_TYPE
+   * @description
+   * Unknown release type
+   */
+  UNKNOWN: 'UNKNOWN'
+
+};
+
+/**
+ * @summary Get the release type from a version string
+ * @function
+ * @public
+ *
+ * @param {String} version - application version
+ * @returns {RELEASE_TYPE} release type
+ *
+ * @example
+ * const version = require('../../package.json').version;
+ * const releaseType = release.getReleaseType(version);
+ *
+ * if (releaseType === release.RELEASE_TYPE.PRODUCTION) {
+ *   console.log('This is a production release!');
+ * }
+ */
+exports.getReleaseType = (version) => {
+  const GIT_HASH_REGEX = /^[0-9a-f]{7,40}$/;
+  const buildNumber = _.get(semver.parse(version), [ 'build' ]);
+
+  if (!_.isNil(buildNumber)) {
+    if (_.isEmpty(buildNumber)) {
+      return exports.RELEASE_TYPE.PRODUCTION;
+    }
+
+    if (GIT_HASH_REGEX.test(_.first(buildNumber))) {
+      return exports.RELEASE_TYPE.SNAPSHOT;
+    }
+  }
+
+  return exports.RELEASE_TYPE.UNKNOWN;
+};
+
+/**
+ * @summary Check if a version is a stable release
+ * @function
+ * @public
+ *
+ * @param {String} version - version
+ * @returns {Boolean} whether the version is a stable release
+ *
+ * @example
+ * if (release.isStableRelease('1.0.0')) {
+ *   console.log('This is a stable release');
+ * }
+ */
+exports.isStableRelease = (version) => {
+  return _.isEmpty(_.get(semver.parse(version), [ 'prerelease' ]));
+};
diff --git a/lib/shared/s3-packages.js b/lib/shared/s3-packages.js
new file mode 100644
index 00000000..63d14a0c
--- /dev/null
+++ b/lib/shared/s3-packages.js
@@ -0,0 +1,245 @@
+/*
+ * Copyright 2017 resin.io
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const _ = require('lodash');
+const semver = require('semver');
+const Bluebird = require('bluebird');
+const request = Bluebird.promisifyAll(require('request'));
+const xml = Bluebird.promisifyAll(require('xml2js'));
+const release = require('./release');
+
+/**
+ * @summary Etcher S3 bucket URLs
+ * @namespace BUCKET_URL
+ * @public
+ */
+exports.BUCKET_URL = {
+
+  /**
+   * @property {String} PRODUCTION
+   * @memberof BUCKET_URL
+   * @description
+   * Etcher production S3 bucket URL
+   */
+  PRODUCTION: 'https://resin-production-downloads.s3.amazonaws.com',
+
+  /**
+   * @property {String} SNAPSHOT
+   * @memberof BUCKET_URL
+   * @description
+   * Etcher snapshot S3 bucket URL
+   */
+  SNAPSHOT: 'https://resin-nightly-downloads.s3.amazonaws.com'
+
+};
+
+/**
+ * @summary Etcher S3 package name
+ * @constant
+ * @private
+ * @type {String}
+ */
+const S3_PACKAGE_NAME = 'etcher';
+
+/**
+ * @summary Number of packages per Etcher version
+ * @constant
+ * @private
+ * @type {Number}
+ */
+const NUMBER_OF_PACKAGES = 8;
+
+/**
+ * @summary Get the correct S3 bucket url from a release type
+ * @function
+ * @private
+ *
+ * @param {RELEASE_TYPE} releaseType - release type
+ * @returns {?String} S3 bucket url
+ *
+ * @example
+ * const bucketUrl = s3Packages.getBucketUrlFromReleaseType(release.RELEASE_TYPE.PRODUCTION);
+ *
+ * if (bucketUrl) {
+ *   console.log(bucketUrl);
+ * }
+ */
+exports.getBucketUrlFromReleaseType = (releaseType) => {
+  if (releaseType === release.RELEASE_TYPE.PRODUCTION) {
+    return exports.BUCKET_URL.PRODUCTION;
+  }
+
+  if (releaseType === release.RELEASE_TYPE.SNAPSHOT) {
+    return exports.BUCKET_URL.SNAPSHOT;
+  }
+
+  return null;
+};
+
+/**
+ * @summary Get all remote versions from an S3 bucket
+ * @function
+ * @private
+ *
+ * @description
+ * We memoize based on the assumption that the received latest version
+ * number will not increase while the application is running.
+ *
+ * @param {String} bucketUrl - s3 bucket url
+ * @fulfil {String[]} - remote versions
+ * @returns {Promise}
+ *
+ * @example
+ * s3Packages.getRemoteVersions(s3Packages.BUCKET_URL.PRODUCTION).then((versions) => {
+ *   _.each(versions, (version) => {
+ *     console.log(version);
+ *   });
+ * });
+ */
+exports.getRemoteVersions = _.memoize((bucketUrl) => {
+  if (_.isNil(bucketUrl)) {
+    return Bluebird.reject(new Error(`Invalid bucket url: ${bucketUrl}`));
+  }
+
+  /* eslint-disable lodash/prefer-lodash-method */
+
+  return request.getAsync(bucketUrl)
+
+  /* eslint-enable lodash/prefer-lodash-method */
+
+    .get('body')
+    .then(xml.parseStringAsync)
+    .get('ListBucketResult')
+    .then((bucketResult) => {
+      return _.get(bucketResult, [ 'Contents' ], []);
+    })
+    .reduce((accumulator, entry) => {
+      const [ name, version ] = _.split(_.first(entry.Key), '/');
+
+      if (name === S3_PACKAGE_NAME) {
+        if (_.isNil(accumulator[version])) {
+          accumulator[version] = 1;
+        } else {
+          accumulator[version] += 1;
+        }
+      }
+
+      return accumulator;
+    }, [])
+    .then((versions) => {
+      return _.keys(_.pickBy(versions, (occurrences) => {
+        return occurrences >= NUMBER_OF_PACKAGES;
+      }));
+    })
+    .catch({
+      code: 'ENOTFOUND'
+    }, {
+      code: 'ETIMEDOUT'
+    }, () => {
+      return [];
+    });
+});
+
+/**
+ * @summary Check if a version satisfies a semver range
+ * @function
+ * @private
+ *
+ * @description
+ * This function is a wrapper around `semver.satisfies`
+ * to make it work fine with pre-release versions.
+ *
+ * @param {String} version - semver version
+ * @param {String} range - semver range
+ * @returns {Boolean} whether the version satisfies the range
+ *
+ * @example
+ * if (semverSatisfies('1.0.0', '>=1.0.0')) {
+ *   console.log('The version satisfies the range');
+ * }
+ */
+const semverSatisfies = (version, range) => {
+
+  // The `semver` module refuses to apply ranges to prerelease versions
+  // As a workaround, we drop the prerelease tags, if any, apply the range
+  // on that, and keep using the prerelease tag from then on.
+  // See https://github.com/npm/node-semver#prerelease-tags
+  const strippedVersion = `${semver.major(version)}.${semver.minor(version)}.${semver.patch(version)}`;
+
+  return semver.satisfies(strippedVersion, range);
+};
+
+/**
+ * @summary Get the latest available version for a given release type
+ * @function
+ * @public
+ *
+ * @param {String} releaseType - release type
+ * @param {Object} [options] - options
+ * @param {String} [options.range] - semver range
+ * @param {Boolean} [options.includeUnstableChannel=false] - include unstable channel
+ * @fulfil {(String|undefined)} - latest version
+ * @returns {Promise}
+ *
+ * @example
+ * s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+ *   range: '>=2.0.0',
+ *   includeUnstableChannel: true
+ * }).then((latestVersion) => {
+ *   console.log(`The latest version is: ${latestVersion}`);
+ * });
+ */
+exports.getLatestVersion = (releaseType, options = {}) => {
+
+  // For manual testing purposes
+  const ETCHER_FAKE_S3_LATEST_VERSION = process.env.ETCHER_FAKE_S3_LATEST_VERSION;
+  if (!_.isNil(ETCHER_FAKE_S3_LATEST_VERSION)) {
+    if (release.getReleaseType(ETCHER_FAKE_S3_LATEST_VERSION) === releaseType) {
+      return Bluebird.resolve(ETCHER_FAKE_S3_LATEST_VERSION);
+    }
+
+    return Bluebird.resolve();
+  }
+
+  const bucketUrl = exports.getBucketUrlFromReleaseType(releaseType);
+  if (_.isNil(bucketUrl)) {
+    return Bluebird.reject(new Error(`No bucket URL found for release type: ${releaseType}`));
+  }
+
+  /* eslint-disable lodash/prefer-lodash-method */
+
+  return exports.getRemoteVersions(bucketUrl).filter((version) => {
+
+  /* eslint-enable lodash/prefer-lodash-method */
+
+    if (_.some([
+
+      // This check allows us to ignore snapshot builds in production
+      // buckets, and viceversa, which could have been uploaded by mistake.
+      release.getReleaseType(version) !== releaseType,
+
+      !release.isStableRelease(version) && !options.includeUnstableChannel
+    ])) {
+      return false;
+    }
+
+    return semverSatisfies(version, options.range || '*');
+  }).then((versions) => {
+    return _.last(versions.sort(semver.compare));
+  });
+};
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index 56d5c7bd..47e6bb68 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -38,13 +38,11 @@
       "version": "4.11.5",
       "from": "ajv@>=4.9.1 <5.0.0",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-4.11.5.tgz",
-      "dev": true,
       "dependencies": {
         "json-stable-stringify": {
           "version": "1.0.1",
           "from": "json-stable-stringify@>=1.0.1 <2.0.0",
-          "resolved": "https://registry.npmjs.org/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz",
-          "dev": true
+          "resolved": "https://registry.npmjs.org/json-stable-stringify/-/json-stable-stringify-1.0.1.tgz"
         }
       }
     },
@@ -342,10 +340,9 @@
       "dev": true
     },
     "assert-plus": {
-      "version": "0.1.5",
-      "from": "assert-plus@>=0.1.5 <0.2.0",
-      "resolved": "http://registry.npmjs.org/assert-plus/-/assert-plus-0.1.5.tgz",
-      "dev": true
+      "version": "0.2.0",
+      "from": "assert-plus@>=0.2.0 <0.3.0",
+      "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-0.2.0.tgz"
     },
     "assertion-error": {
       "version": "1.0.2",
@@ -386,8 +383,7 @@
     "asynckit": {
       "version": "0.4.0",
       "from": "asynckit@>=0.4.0 <0.5.0",
-      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz"
     },
     "autolinker": {
       "version": "0.15.3",
@@ -396,16 +392,14 @@
       "dev": true
     },
     "aws-sign2": {
-      "version": "0.5.0",
-      "from": "aws-sign2@>=0.5.0 <0.6.0",
-      "resolved": "http://registry.npmjs.org/aws-sign2/-/aws-sign2-0.5.0.tgz",
-      "dev": true
+      "version": "0.6.0",
+      "from": "aws-sign2@>=0.6.0 <0.7.0",
+      "resolved": "https://registry.npmjs.org/aws-sign2/-/aws-sign2-0.6.0.tgz"
     },
     "aws4": {
       "version": "1.6.0",
       "from": "aws4@>=1.2.1 <2.0.0",
-      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.6.0.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/aws4/-/aws4-1.6.0.tgz"
     },
     "babel-code-frame": {
       "version": "6.22.0",
@@ -436,7 +430,6 @@
       "version": "1.0.1",
       "from": "bcrypt-pbkdf@>=1.0.0 <2.0.0",
       "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.1.tgz",
-      "dev": true,
       "optional": true
     },
     "binary": {
@@ -521,8 +514,7 @@
     "boom": {
       "version": "2.10.1",
       "from": "boom@>=2.0.0 <3.0.0",
-      "resolved": "https://registry.npmjs.org/boom/-/boom-2.10.1.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/boom/-/boom-2.10.1.tgz"
     },
     "bootstrap-sass": {
       "version": "3.3.6",
@@ -750,10 +742,9 @@
       }
     },
     "caseless": {
-      "version": "0.9.0",
-      "from": "caseless@>=0.9.0 <0.10.0",
-      "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.9.0.tgz",
-      "dev": true
+      "version": "0.12.0",
+      "from": "caseless@>=0.12.0 <0.13.0",
+      "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.12.0.tgz"
     },
     "center-align": {
       "version": "0.1.3",
@@ -860,8 +851,7 @@
     "co": {
       "version": "4.6.0",
       "from": "co@>=4.6.0 <5.0.0",
-      "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/co/-/co-4.6.0.tgz"
     },
     "code-context": {
       "version": "0.5.3",
@@ -1123,8 +1113,7 @@
     "cryptiles": {
       "version": "2.0.5",
       "from": "cryptiles@>=2.0.0 <3.0.0",
-      "resolved": "https://registry.npmjs.org/cryptiles/-/cryptiles-2.0.5.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/cryptiles/-/cryptiles-2.0.5.tgz"
     },
     "crypto-browserify": {
       "version": "3.11.0",
@@ -1171,13 +1160,11 @@
       "version": "1.14.1",
       "from": "dashdash@>=1.12.0 <2.0.0",
       "resolved": "https://registry.npmjs.org/dashdash/-/dashdash-1.14.1.tgz",
-      "dev": true,
       "dependencies": {
         "assert-plus": {
           "version": "1.0.0",
           "from": "assert-plus@>=1.0.0 <2.0.0",
-          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
-          "dev": true
+          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz"
         }
       }
     },
@@ -1476,7 +1463,6 @@
       "version": "0.1.1",
       "from": "ecc-jsbn@>=0.1.1 <0.2.0",
       "resolved": "https://registry.npmjs.org/ecc-jsbn/-/ecc-jsbn-0.1.1.tgz",
-      "dev": true,
       "optional": true
     },
     "electron": {
@@ -2219,18 +2205,6 @@
         }
       }
     },
-    "etcher-latest-version": {
-      "version": "1.0.0",
-      "from": "etcher-latest-version@latest",
-      "resolved": "https://registry.npmjs.org/etcher-latest-version/-/etcher-latest-version-1.0.0.tgz",
-      "dependencies": {
-        "semver": {
-          "version": "5.2.0",
-          "from": "semver@>=5.2.0 <6.0.0",
-          "resolved": "https://registry.npmjs.org/semver/-/semver-5.2.0.tgz"
-        }
-      }
-    },
     "event-emitter": {
       "version": "0.3.5",
       "from": "event-emitter@>=0.3.5 <0.4.0",
@@ -2294,8 +2268,7 @@
     "extend": {
       "version": "3.0.0",
       "from": "extend@>=3.0.0 <3.1.0",
-      "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.0.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/extend/-/extend-3.0.0.tgz"
     },
     "extend-shallow": {
       "version": "2.0.1",
@@ -2362,8 +2335,7 @@
     "extsprintf": {
       "version": "1.0.2",
       "from": "extsprintf@1.0.2",
-      "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.0.2.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/extsprintf/-/extsprintf-1.0.2.tgz"
     },
     "eyes": {
       "version": "0.1.8",
@@ -2576,14 +2548,12 @@
     "forever-agent": {
       "version": "0.6.1",
       "from": "forever-agent@>=0.6.0 <0.7.0",
-      "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/forever-agent/-/forever-agent-0.6.1.tgz"
     },
     "form-data": {
-      "version": "0.2.0",
-      "from": "form-data@>=0.2.0 <0.3.0",
-      "resolved": "http://registry.npmjs.org/form-data/-/form-data-0.2.0.tgz",
-      "dev": true,
+      "version": "2.1.2",
+      "from": "form-data@>=2.1.1 <2.2.0",
+      "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.1.2.tgz",
       "dependencies": {
         "async": {
           "version": "0.9.2",
@@ -2602,6 +2572,16 @@
           "from": "mime-types@>=2.0.3 <2.1.0",
           "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.0.14.tgz",
           "dev": true
+        },
+        "combined-stream": {
+          "version": "1.0.5",
+          "from": "combined-stream@^1.0.5",
+          "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.5.tgz"
+        },
+        "delayed-stream": {
+          "version": "1.0.0",
+          "from": "delayed-stream@~1.0.0",
+          "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz"
         }
       }
     },
@@ -2757,13 +2737,11 @@
       "version": "0.1.6",
       "from": "getpass@>=0.1.1 <0.2.0",
       "resolved": "https://registry.npmjs.org/getpass/-/getpass-0.1.6.tgz",
-      "dev": true,
       "dependencies": {
         "assert-plus": {
           "version": "1.0.0",
           "from": "assert-plus@>=1.0.0 <2.0.0",
-          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
-          "dev": true
+          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz"
         }
       }
     },
@@ -2965,28 +2943,12 @@
     "har-schema": {
       "version": "1.0.5",
       "from": "har-schema@>=1.0.5 <2.0.0",
-      "resolved": "https://registry.npmjs.org/har-schema/-/har-schema-1.0.5.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/har-schema/-/har-schema-1.0.5.tgz"
     },
     "har-validator": {
-      "version": "1.8.0",
-      "from": "har-validator@>=1.4.0 <2.0.0",
-      "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-1.8.0.tgz",
-      "dev": true,
-      "dependencies": {
-        "bluebird": {
-          "version": "2.11.0",
-          "from": "bluebird@>=2.9.30 <3.0.0",
-          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-2.11.0.tgz",
-          "dev": true
-        },
-        "commander": {
-          "version": "2.9.0",
-          "from": "commander@^2.8.1",
-          "resolved": "https://registry.npmjs.org/commander/-/commander-2.9.0.tgz",
-          "dev": true
-        }
-      }
+      "version": "4.2.1",
+      "from": "har-validator@>=4.2.1 <4.3.0",
+      "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-4.2.1.tgz"
     },
     "has": {
       "version": "1.0.1",
@@ -3024,10 +2986,9 @@
       "dev": true
     },
     "hawk": {
-      "version": "2.3.1",
-      "from": "hawk@>=2.3.0 <2.4.0",
-      "resolved": "https://registry.npmjs.org/hawk/-/hawk-2.3.1.tgz",
-      "dev": true
+      "version": "3.1.3",
+      "from": "hawk@>=3.1.3 <3.2.0",
+      "resolved": "https://registry.npmjs.org/hawk/-/hawk-3.1.3.tgz"
     },
     "helper-date": {
       "version": "0.2.3",
@@ -3078,8 +3039,7 @@
     "hoek": {
       "version": "2.16.3",
       "from": "hoek@>=2.0.0 <3.0.0",
-      "resolved": "https://registry.npmjs.org/hoek/-/hoek-2.16.3.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/hoek/-/hoek-2.16.3.tgz"
     },
     "home-path": {
       "version": "1.0.3",
@@ -3137,10 +3097,9 @@
       "dev": true
     },
     "http-signature": {
-      "version": "0.10.1",
-      "from": "http-signature@>=0.10.0 <0.11.0",
-      "resolved": "http://registry.npmjs.org/http-signature/-/http-signature-0.10.1.tgz",
-      "dev": true
+      "version": "1.1.1",
+      "from": "http-signature@>=1.1.0 <1.2.0",
+      "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.1.1.tgz"
     },
     "https-browserify": {
       "version": "0.0.1",
@@ -3510,8 +3469,7 @@
     "is-typedarray": {
       "version": "1.0.0",
       "from": "is-typedarray@>=1.0.0 <1.1.0",
-      "resolved": "https://registry.npmjs.org/is-typedarray/-/is-typedarray-1.0.0.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/is-typedarray/-/is-typedarray-1.0.0.tgz"
     },
     "is-unc-path": {
       "version": "0.1.2",
@@ -3569,7 +3527,6 @@
       "version": "1.0.2",
       "from": "jodid25519@>=1.0.0 <2.0.0",
       "resolved": "https://registry.npmjs.org/jodid25519/-/jodid25519-1.0.2.tgz",
-      "dev": true,
       "optional": true
     },
     "js-message": {
@@ -3596,7 +3553,6 @@
       "version": "0.1.1",
       "from": "jsbn@>=0.1.0 <0.2.0",
       "resolved": "https://registry.npmjs.org/jsbn/-/jsbn-0.1.1.tgz",
-      "dev": true,
       "optional": true
     },
     "json-parse-helpfulerror": {
@@ -3608,8 +3564,7 @@
     "json-schema": {
       "version": "0.2.3",
       "from": "json-schema@0.2.3",
-      "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/json-schema/-/json-schema-0.2.3.tgz"
     },
     "json-stable-stringify": {
       "version": "0.0.1",
@@ -3637,8 +3592,7 @@
     "jsonify": {
       "version": "0.0.0",
       "from": "jsonify@>=0.0.0 <0.1.0",
-      "resolved": "https://registry.npmjs.org/jsonify/-/jsonify-0.0.0.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/jsonify/-/jsonify-0.0.0.tgz"
     },
     "jsonparse": {
       "version": "1.3.0",
@@ -3662,13 +3616,11 @@
       "version": "1.4.0",
       "from": "jsprim@>=1.2.2 <2.0.0",
       "resolved": "https://registry.npmjs.org/jsprim/-/jsprim-1.4.0.tgz",
-      "dev": true,
       "dependencies": {
         "assert-plus": {
           "version": "1.0.0",
           "from": "assert-plus@1.0.0",
-          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
-          "dev": true
+          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz"
         }
       }
     },
@@ -4723,6 +4675,48 @@
       "resolved": "https://registry.npmjs.org/mksnapshot/-/mksnapshot-0.1.0.tgz",
       "dev": true,
       "dependencies": {
+        "assert-plus": {
+          "version": "0.1.5",
+          "from": "assert-plus@>=0.1.5 <0.2.0",
+          "resolved": "http://registry.npmjs.org/assert-plus/-/assert-plus-0.1.5.tgz",
+          "dev": true
+        },
+        "async": {
+          "version": "0.9.2",
+          "from": "async@>=0.9.0 <0.10.0",
+          "resolved": "https://registry.npmjs.org/async/-/async-0.9.2.tgz",
+          "dev": true
+        },
+        "aws-sign2": {
+          "version": "0.5.0",
+          "from": "aws-sign2@>=0.5.0 <0.6.0",
+          "resolved": "http://registry.npmjs.org/aws-sign2/-/aws-sign2-0.5.0.tgz",
+          "dev": true
+        },
+        "bluebird": {
+          "version": "2.11.0",
+          "from": "bluebird@>=2.9.30 <3.0.0",
+          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-2.11.0.tgz",
+          "dev": true
+        },
+        "caseless": {
+          "version": "0.9.0",
+          "from": "caseless@>=0.9.0 <0.10.0",
+          "resolved": "https://registry.npmjs.org/caseless/-/caseless-0.9.0.tgz",
+          "dev": true
+        },
+        "commander": {
+          "version": "2.9.0",
+          "from": "commander@>=2.8.1 <3.0.0",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.9.0.tgz",
+          "dev": true
+        },
+        "form-data": {
+          "version": "0.2.0",
+          "from": "form-data@>=0.2.0 <0.3.0",
+          "resolved": "http://registry.npmjs.org/form-data/-/form-data-0.2.0.tgz",
+          "dev": true
+        },
         "fs-extra": {
           "version": "0.18.2",
           "from": "fs-extra@0.18.2",
@@ -4734,6 +4728,66 @@
           "from": "graceful-fs@>=3.0.5 <4.0.0",
           "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-3.0.11.tgz",
           "dev": true
+        },
+        "har-validator": {
+          "version": "1.8.0",
+          "from": "har-validator@>=1.4.0 <2.0.0",
+          "resolved": "https://registry.npmjs.org/har-validator/-/har-validator-1.8.0.tgz",
+          "dev": true
+        },
+        "hawk": {
+          "version": "2.3.1",
+          "from": "hawk@>=2.3.0 <2.4.0",
+          "resolved": "https://registry.npmjs.org/hawk/-/hawk-2.3.1.tgz",
+          "dev": true
+        },
+        "http-signature": {
+          "version": "0.10.1",
+          "from": "http-signature@>=0.10.0 <0.11.0",
+          "resolved": "http://registry.npmjs.org/http-signature/-/http-signature-0.10.1.tgz",
+          "dev": true
+        },
+        "mime-db": {
+          "version": "1.12.0",
+          "from": "mime-db@>=1.12.0 <1.13.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.12.0.tgz",
+          "dev": true
+        },
+        "mime-types": {
+          "version": "2.0.14",
+          "from": "mime-types@>=2.0.1 <2.1.0",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.0.14.tgz",
+          "dev": true
+        },
+        "node-uuid": {
+          "version": "1.4.7",
+          "from": "node-uuid@>=1.4.0 <1.5.0",
+          "resolved": "https://registry.npmjs.org/node-uuid/-/node-uuid-1.4.7.tgz",
+          "dev": true
+        },
+        "oauth-sign": {
+          "version": "0.6.0",
+          "from": "oauth-sign@>=0.6.0 <0.7.0",
+          "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.6.0.tgz",
+          "dev": true
+        },
+        "qs": {
+          "version": "2.4.2",
+          "from": "qs@>=2.4.0 <2.5.0",
+          "resolved": "https://registry.npmjs.org/qs/-/qs-2.4.2.tgz",
+          "dev": true
+        },
+        "request": {
+          "version": "2.55.0",
+          "from": "request@2.55.0",
+          "resolved": "https://registry.npmjs.org/request/-/request-2.55.0.tgz",
+          "dev": true
+        },
+        "tunnel-agent": {
+          "version": "0.4.3",
+          "from": "tunnel-agent@>=0.4.0 <0.5.0",
+          "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.4.3.tgz",
+          "dev": true
         }
       }
     },
@@ -4882,6 +4936,26 @@
       "resolved": "https://registry.npmjs.org/netmask/-/netmask-1.0.6.tgz",
       "dev": true
     },
+    "nock": {
+      "version": "9.0.9",
+      "from": "nock@9.0.9",
+      "resolved": "https://registry.npmjs.org/nock/-/nock-9.0.9.tgz",
+      "dev": true,
+      "dependencies": {
+        "deep-equal": {
+          "version": "1.0.1",
+          "from": "deep-equal@>=1.0.0 <2.0.0",
+          "resolved": "https://registry.npmjs.org/deep-equal/-/deep-equal-1.0.1.tgz",
+          "dev": true
+        },
+        "lodash": {
+          "version": "4.17.4",
+          "from": "lodash@>=4.17.2 <4.18.0",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.4.tgz",
+          "dev": true
+        }
+      }
+    },
     "node-cmd": {
       "version": "1.1.1",
       "from": "node-cmd@>=1.1.1",
@@ -5027,12 +5101,6 @@
       "from": "node-stream-zip@>=1.3.4 <2.0.0",
       "resolved": "https://registry.npmjs.org/node-stream-zip/-/node-stream-zip-1.3.4.tgz"
     },
-    "node-uuid": {
-      "version": "1.4.7",
-      "from": "node-uuid@>=1.4.0 <1.5.0",
-      "resolved": "https://registry.npmjs.org/node-uuid/-/node-uuid-1.4.7.tgz",
-      "dev": true
-    },
     "node.extend": {
       "version": "1.1.6",
       "from": "node.extend@>=1.1.5 <1.2.0",
@@ -5082,10 +5150,9 @@
       "resolved": "https://registry.npmjs.org/number-is-nan/-/number-is-nan-1.0.0.tgz"
     },
     "oauth-sign": {
-      "version": "0.6.0",
-      "from": "oauth-sign@>=0.6.0 <0.7.0",
-      "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.6.0.tgz",
-      "dev": true
+      "version": "0.8.2",
+      "from": "oauth-sign@>=0.8.1 <0.9.0",
+      "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.8.2.tgz"
     },
     "object-assign": {
       "version": "4.1.0",
@@ -5339,8 +5406,7 @@
     "performance-now": {
       "version": "0.2.0",
       "from": "performance-now@>=0.2.0 <0.3.0",
-      "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-0.2.0.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/performance-now/-/performance-now-0.2.0.tgz"
     },
     "pify": {
       "version": "2.3.0",
@@ -5463,6 +5529,12 @@
       "resolved": "https://registry.npmjs.org/prompt/-/prompt-1.0.0.tgz",
       "dev": true
     },
+    "propagate": {
+      "version": "0.4.0",
+      "from": "propagate@0.4.0",
+      "resolved": "https://registry.npmjs.org/propagate/-/propagate-0.4.0.tgz",
+      "dev": true
+    },
     "proxy-agent": {
       "version": "1.1.1",
       "from": "proxy-agent@>=1.0.0 <2.0.0",
@@ -5492,8 +5564,7 @@
     "punycode": {
       "version": "1.4.1",
       "from": "punycode@>=1.3.2 <2.0.0",
-      "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/punycode/-/punycode-1.4.1.tgz"
     },
     "q": {
       "version": "1.4.1",
@@ -5502,10 +5573,9 @@
       "dev": true
     },
     "qs": {
-      "version": "2.4.2",
-      "from": "qs@>=2.4.0 <2.5.0",
-      "resolved": "https://registry.npmjs.org/qs/-/qs-2.4.2.tgz",
-      "dev": true
+      "version": "6.4.0",
+      "from": "qs@>=6.4.0 <6.5.0",
+      "resolved": "https://registry.npmjs.org/qs/-/qs-6.4.0.tgz"
     },
     "querystring": {
       "version": "0.2.0",
@@ -5770,22 +5840,19 @@
       }
     },
     "request": {
-      "version": "2.55.0",
-      "from": "request@2.55.0",
-      "resolved": "https://registry.npmjs.org/request/-/request-2.55.0.tgz",
-      "dev": true,
+      "version": "2.81.0",
+      "from": "request@2.81.0",
+      "resolved": "https://registry.npmjs.org/request/-/request-2.81.0.tgz",
       "dependencies": {
-        "mime-db": {
-          "version": "1.12.0",
-          "from": "mime-db@>=1.12.0 <1.13.0",
-          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.12.0.tgz",
-          "dev": true
+        "combined-stream": {
+          "version": "1.0.5",
+          "from": "combined-stream@>=1.0.5 <1.1.0",
+          "resolved": "https://registry.npmjs.org/combined-stream/-/combined-stream-1.0.5.tgz"
         },
-        "mime-types": {
-          "version": "2.0.14",
-          "from": "mime-types@>=2.0.1 <2.1.0",
-          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.0.14.tgz",
-          "dev": true
+        "delayed-stream": {
+          "version": "1.0.0",
+          "from": "delayed-stream@>=1.0.0 <1.1.0",
+          "resolved": "https://registry.npmjs.org/delayed-stream/-/delayed-stream-1.0.0.tgz"
         }
       }
     },
@@ -5928,8 +5995,7 @@
     "safe-buffer": {
       "version": "5.0.1",
       "from": "safe-buffer@>=5.0.1 <6.0.0",
-      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.0.1.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.0.1.tgz"
     },
     "samsam": {
       "version": "1.1.2",
@@ -6187,8 +6253,7 @@
     "sntp": {
       "version": "1.0.9",
       "from": "sntp@>=1.0.0 <2.0.0",
-      "resolved": "https://registry.npmjs.org/sntp/-/sntp-1.0.9.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/sntp/-/sntp-1.0.9.tgz"
     },
     "socks": {
       "version": "1.1.10",
@@ -6256,19 +6321,16 @@
       "version": "1.11.0",
       "from": "sshpk@>=1.7.0 <2.0.0",
       "resolved": "https://registry.npmjs.org/sshpk/-/sshpk-1.11.0.tgz",
-      "dev": true,
       "dependencies": {
         "asn1": {
           "version": "0.2.3",
           "from": "asn1@>=0.2.3 <0.3.0",
-          "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.3.tgz",
-          "dev": true
+          "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.3.tgz"
         },
         "assert-plus": {
           "version": "1.0.0",
           "from": "assert-plus@>=1.0.0 <2.0.0",
-          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz",
-          "dev": true
+          "resolved": "https://registry.npmjs.org/assert-plus/-/assert-plus-1.0.0.tgz"
         }
       }
     },
@@ -6386,8 +6448,7 @@
     "stringstream": {
       "version": "0.0.5",
       "from": "stringstream@>=0.0.4 <0.1.0",
-      "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/stringstream/-/stringstream-0.0.5.tgz"
     },
     "strip-ansi": {
       "version": "3.0.1",
@@ -6690,8 +6751,7 @@
     "tough-cookie": {
       "version": "2.3.2",
       "from": "tough-cookie@>=0.12.0",
-      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.2.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.2.tgz"
     },
     "tracery": {
       "version": "1.0.3",
@@ -6735,16 +6795,14 @@
       "dev": true
     },
     "tunnel-agent": {
-      "version": "0.4.3",
-      "from": "tunnel-agent@>=0.4.0 <0.5.0",
-      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.4.3.tgz",
-      "dev": true
+      "version": "0.6.0",
+      "from": "tunnel-agent@>=0.6.0 <0.7.0",
+      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz"
     },
     "tweetnacl": {
       "version": "0.14.5",
       "from": "tweetnacl@>=0.14.0 <0.15.0",
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
-      "dev": true,
       "optional": true
     },
     "type-check": {
@@ -6955,8 +7013,7 @@
     "verror": {
       "version": "1.3.6",
       "from": "verror@1.3.6",
-      "resolved": "https://registry.npmjs.org/verror/-/verror-1.3.6.tgz",
-      "dev": true
+      "resolved": "https://registry.npmjs.org/verror/-/verror-1.3.6.tgz"
     },
     "versionist": {
       "version": "2.8.1",
@@ -7105,9 +7162,9 @@
       "dev": true
     },
     "xml2js": {
-      "version": "0.4.16",
-      "from": "xml2js@>=0.4.16 <0.5.0",
-      "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.16.tgz"
+      "version": "0.4.17",
+      "from": "xml2js@0.4.17",
+      "resolved": "https://registry.npmjs.org/xml2js/-/xml2js-0.4.17.tgz"
     },
     "xmlbuilder": {
       "version": "4.2.1",
diff --git a/package.json b/package.json
index 98def069..9efd725f 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,9 @@
   "name": "etcher",
   "displayName": "Etcher",
   "version": "1.0.0-rc.4",
+  "updates": {
+    "semverRange": "<2.0.0"
+  },
   "main": "lib/start.js",
   "description": "Flash OS images to SD cards & USB drives, safely and easily.",
   "productDescription": "Etcher is a powerful OS image flasher built with web technologies to ensure flashing an SDCard or USB drive is a pleasant and safe experience. It protects you from accidentally writing to your hard-drives, ensures every byte of data was written correctly and much more.",
@@ -89,6 +92,7 @@
     "path-is-inside": "^1.0.2",
     "redux": "^3.5.2",
     "redux-localstorage": "^0.4.1",
+    "request": "^2.81.0",
     "resin-cli-form": "^1.4.1",
     "resin-cli-visuals": "^1.2.8",
     "resin-corvus": "^1.0.0-beta.26",
@@ -99,6 +103,7 @@
     "udif": "^0.9.0",
     "unbzip2-stream": "^1.0.11",
     "uuid": "^3.0.1",
+    "xml2js": "^0.4.17",
     "yargs": "^4.6.0",
     "yauzl": "^2.6.0"
   },
@@ -115,6 +120,7 @@
     "file-exists": "^1.0.0",
     "html-angular-validate": "^0.1.9",
     "mochainon": "^1.0.0",
+    "nock": "^9.0.9",
     "node-sass": "^3.8.0",
     "sass-lint": "^1.10.2",
     "tmp": "0.0.31",
diff --git a/tests/gui/components/update-notifier.spec.js b/tests/gui/components/update-notifier.spec.js
index eba5b8d7..b6f0ae69 100644
--- a/tests/gui/components/update-notifier.spec.js
+++ b/tests/gui/components/update-notifier.spec.js
@@ -24,177 +24,125 @@ describe('Browser: UpdateNotifier', function() {
         UPDATE_NOTIFIER_SLEEP_DAYS = _UPDATE_NOTIFIER_SLEEP_DAYS_;
       }));
 
-      describe('given the `sleepUpdateCheck` is disabled', function() {
+      describe('given ignoreSleepUpdateCheck is false', function() {
 
         beforeEach(function() {
-          settings.set('sleepUpdateCheck', false);
+          this.ignoreSleepUpdateCheck = false;
         });
 
-        it('should return true', function() {
-          const result = UpdateNotifierService.shouldCheckForUpdates();
-          m.chai.expect(result).to.be.true;
-        });
-
-      });
-
-      describe('given the `sleepUpdateCheck` is enabled', function() {
-
-        beforeEach(function() {
-          settings.set('sleepUpdateCheck', true);
-        });
-
-        describe('given the `lastUpdateNotify` was never updated', function() {
+        describe('given the `sleepUpdateCheck` is disabled', function() {
 
           beforeEach(function() {
-            settings.set('lastUpdateNotify', undefined);
+            settings.set('sleepUpdateCheck', false);
           });
 
           it('should return true', function() {
-            const result = UpdateNotifierService.shouldCheckForUpdates();
+            const result = UpdateNotifierService.shouldCheckForUpdates({
+              ignoreSleepUpdateCheck: this.ignoreSleepUpdateCheck
+            });
+
             m.chai.expect(result).to.be.true;
           });
 
         });
 
-        describe('given the `lastUpdateNotify` was very recently updated', function() {
+        describe('given the `sleepUpdateCheck` is enabled', function() {
 
           beforeEach(function() {
-            settings.set('lastUpdateNotify', Date.now() + 1000);
+            settings.set('sleepUpdateCheck', true);
           });
 
-          it('should return false', function() {
-            const result = UpdateNotifierService.shouldCheckForUpdates();
-            m.chai.expect(result).to.be.false;
+          describe('given the `lastUpdateNotify` was never updated', function() {
+
+            beforeEach(function() {
+              settings.set('lastUpdateNotify', undefined);
+            });
+
+            it('should return true', function() {
+              const result = UpdateNotifierService.shouldCheckForUpdates({
+                ignoreSleepUpdateCheck: this.ignoreSleepUpdateCheck
+              });
+
+              m.chai.expect(result).to.be.true;
+            });
+
+          });
+
+          describe('given the `lastUpdateNotify` was very recently updated', function() {
+
+            beforeEach(function() {
+              settings.set('lastUpdateNotify', Date.now() + 1000);
+            });
+
+            it('should return false', function() {
+              const result = UpdateNotifierService.shouldCheckForUpdates({
+                ignoreSleepUpdateCheck: this.ignoreSleepUpdateCheck
+              });
+
+              m.chai.expect(result).to.be.false;
+            });
+
+          });
+
+          describe('given the `lastUpdateNotify` was updated long ago', function() {
+
+            beforeEach(function() {
+              const SLEEP_MS = units.daysToMilliseconds(UPDATE_NOTIFIER_SLEEP_DAYS);
+              settings.set('lastUpdateNotify', Date.now() + SLEEP_MS + 1000);
+            });
+
+            it('should return true', function() {
+              const result = UpdateNotifierService.shouldCheckForUpdates({
+                ignoreSleepUpdateCheck: this.ignoreSleepUpdateCheck
+              });
+
+              m.chai.expect(result).to.be.true;
+            });
+
+            it('should unset the `sleepUpdateCheck` setting', function() {
+              m.chai.expect(settings.get('sleepUpdateCheck')).to.be.true;
+
+              UpdateNotifierService.shouldCheckForUpdates({
+                ignoreSleepUpdateCheck: this.ignoreSleepUpdateCheck
+              });
+
+              m.chai.expect(settings.get('sleepUpdateCheck')).to.be.false;
+            });
+
           });
 
         });
 
-        describe('given the `lastUpdateNotify` was updated long ago', function() {
+      });
+
+      describe('given ignoreSleepUpdateCheck is true', function() {
+
+        beforeEach(function() {
+          this.ignoreSleepUpdateCheck = true;
+        });
+
+        describe('given the `sleepUpdateCheck` is enabled', function() {
 
           beforeEach(function() {
-            const SLEEP_MS = units.daysToMilliseconds(UPDATE_NOTIFIER_SLEEP_DAYS);
-            settings.set('lastUpdateNotify', Date.now() + SLEEP_MS + 1000);
+            settings.set('sleepUpdateCheck', true);
           });
 
-          it('should return true', function() {
-            const result = UpdateNotifierService.shouldCheckForUpdates();
-            m.chai.expect(result).to.be.true;
+          describe('given the `lastUpdateNotify` was very recently updated', function() {
+
+            beforeEach(function() {
+              settings.set('lastUpdateNotify', Date.now() + 1000);
+            });
+
+            it('should return true', function() {
+              const result = UpdateNotifierService.shouldCheckForUpdates({
+                ignoreSleepUpdateCheck: this.ignoreSleepUpdateCheck
+              });
+
+              m.chai.expect(result).to.be.true;
+            });
+
           });
 
-          it('should unset the `sleepUpdateCheck` setting', function() {
-            m.chai.expect(settings.get('sleepUpdateCheck')).to.be.true;
-            UpdateNotifierService.shouldCheckForUpdates();
-            m.chai.expect(settings.get('sleepUpdateCheck')).to.be.false;
-          });
-
-        });
-
-      });
-
-    });
-
-    describe('.isLatestVersion()', function() {
-
-      describe('given the latest version is equal to the current version', function() {
-
-        let $q;
-        let $rootScope;
-        let UpdateNotifierService;
-        let ManifestBindService;
-
-        beforeEach(angular.mock.inject(function(_$q_, _$rootScope_, _UpdateNotifierService_, _ManifestBindService_) {
-          $q = _$q_;
-          $rootScope = _$rootScope_;
-          UpdateNotifierService = _UpdateNotifierService_;
-          ManifestBindService = _ManifestBindService_;
-        }));
-
-        beforeEach(function() {
-          this.getLatestVersionStub = m.sinon.stub(UpdateNotifierService, 'getLatestVersion');
-          this.getLatestVersionStub.returns($q.resolve(ManifestBindService.get('version')));
-        });
-
-        afterEach(function() {
-          this.getLatestVersionStub.restore();
-        });
-
-        it('should resolve true', function() {
-          let result = null;
-
-          UpdateNotifierService.isLatestVersion().then(function(isLatestVersion) {
-            result = isLatestVersion;
-          });
-
-          $rootScope.$apply();
-          m.chai.expect(result).to.be.true;
-        });
-
-      });
-
-      describe('given the latest version is greater than the current version', function() {
-
-        let $q;
-        let $rootScope;
-        let UpdateNotifierService;
-
-        beforeEach(angular.mock.inject(function(_$q_, _$rootScope_, _UpdateNotifierService_) {
-          $q = _$q_;
-          $rootScope = _$rootScope_;
-          UpdateNotifierService = _UpdateNotifierService_;
-        }));
-
-        beforeEach(function() {
-          this.getLatestVersionStub = m.sinon.stub(UpdateNotifierService, 'getLatestVersion');
-          this.getLatestVersionStub.returns($q.resolve('99999.9.9'));
-        });
-
-        afterEach(function() {
-          this.getLatestVersionStub.restore();
-        });
-
-        it('should resolve false', function() {
-          let result = null;
-
-          UpdateNotifierService.isLatestVersion().then(function(isLatestVersion) {
-            result = isLatestVersion;
-          });
-
-          $rootScope.$apply();
-          m.chai.expect(result).to.be.false;
-        });
-
-      });
-
-      describe('given the latest version is less than the current version', function() {
-
-        let $q;
-        let $rootScope;
-        let UpdateNotifierService;
-
-        beforeEach(angular.mock.inject(function(_$q_, _$rootScope_, _UpdateNotifierService_) {
-          $q = _$q_;
-          $rootScope = _$rootScope_;
-          UpdateNotifierService = _UpdateNotifierService_;
-        }));
-
-        beforeEach(function() {
-          this.getLatestVersionStub = m.sinon.stub(UpdateNotifierService, 'getLatestVersion');
-          this.getLatestVersionStub.returns($q.resolve('0.0.0'));
-        });
-
-        afterEach(function() {
-          this.getLatestVersionStub.restore();
-        });
-
-        it('should resolve true', function() {
-          let result = null;
-
-          UpdateNotifierService.isLatestVersion().then(function(isLatestVersion) {
-            result = isLatestVersion;
-          });
-
-          $rootScope.$apply();
-          m.chai.expect(result).to.be.true;
         });
 
       });
diff --git a/tests/shared/release.spec.js b/tests/shared/release.spec.js
new file mode 100644
index 00000000..bfad5849
--- /dev/null
+++ b/tests/shared/release.spec.js
@@ -0,0 +1,132 @@
+/*
+ * Copyright 2017 resin.io
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const m = require('mochainon');
+const _ = require('lodash');
+const release = require('../../lib/shared/release');
+
+describe('Shared: Release', function() {
+
+  describe('.RELEASE_TYPE', function() {
+
+    it('should be a plain object', function() {
+      m.chai.expect(_.isPlainObject(release.RELEASE_TYPE)).to.be.true;
+    });
+
+    it('should contain keys with different values', function() {
+      const keys = _.keys(release.RELEASE_TYPE);
+      const uniqueValues = _.uniq(_.values(release.RELEASE_TYPE));
+      m.chai.expect(_.size(keys)).to.equal(_.size(uniqueValues));
+    });
+
+  });
+
+  describe('.getReleaseType()', function() {
+
+    it('should return the unknown release type if the version is not valid semver', function() {
+      const releaseType = release.getReleaseType('foo.bar');
+      m.chai.expect(releaseType).to.equal(release.RELEASE_TYPE.UNKNOWN);
+    });
+
+    describe('given the version has a short git commit hash build number', function() {
+
+      it('should return the snapshot release type', function() {
+        const releaseType = release.getReleaseType('1.0.0+6374412');
+        m.chai.expect(releaseType).to.equal(release.RELEASE_TYPE.SNAPSHOT);
+      });
+
+      it('should return the snapshot release type if the version has a pre release tag', function() {
+        const releaseType = release.getReleaseType('1.0.0-beta.19+6374412');
+        m.chai.expect(releaseType).to.equal(release.RELEASE_TYPE.SNAPSHOT);
+      });
+
+    });
+
+    describe('given the version has a long git commit hash build number', function() {
+
+      it('should return the snapshot release type', function() {
+        const releaseType = release.getReleaseType('1.0.0+6374412554b034799bfc6e13b4e39c3f5e6386e6');
+        m.chai.expect(releaseType).to.equal(release.RELEASE_TYPE.SNAPSHOT);
+      });
+
+      it('should return the snapshot release type if the version has a pre release tag', function() {
+        const releaseType = release.getReleaseType('1.0.0-beta.19+6374412554b034799bfc6e13b4e39c3f5e6386e6');
+        m.chai.expect(releaseType).to.equal(release.RELEASE_TYPE.SNAPSHOT);
+      });
+
+    });
+
+    describe('given the version has no build number', function() {
+
+      it('should return the production release type', function() {
+        const releaseType = release.getReleaseType('1.0.0');
+        m.chai.expect(releaseType).to.equal(release.RELEASE_TYPE.PRODUCTION);
+      });
+
+      it('should return the production release type if the version has a pre release tag', function() {
+        const releaseType = release.getReleaseType('1.0.0-beta.19');
+        m.chai.expect(releaseType).to.equal(release.RELEASE_TYPE.PRODUCTION);
+      });
+
+    });
+
+    describe('given a build number that is not a git commit hash', function() {
+
+      it('should return the unknown release type', function() {
+        const releaseType = release.getReleaseType('1.0.0+foo');
+        m.chai.expect(releaseType).to.equal(release.RELEASE_TYPE.UNKNOWN);
+      });
+
+      it('should return the unknown release type if the version has a pre release tag', function() {
+        const releaseType = release.getReleaseType('1.0.0-beta.19+foo');
+        m.chai.expect(releaseType).to.equal(release.RELEASE_TYPE.UNKNOWN);
+      });
+
+    });
+
+  });
+
+  describe('.isStableRelease()', function() {
+
+    it('should return true if given a production stable version', function() {
+      m.chai.expect(release.isStableRelease('1.0.0')).to.be.true;
+    });
+
+    it('should return false if given a production release candidate version', function() {
+      m.chai.expect(release.isStableRelease('1.0.0-rc.2')).to.be.false;
+    });
+
+    it('should return false if given a production beta version', function() {
+      m.chai.expect(release.isStableRelease('1.0.0-beta.1')).to.be.false;
+    });
+
+    it('should return true if given a snapshot stable version', function() {
+      m.chai.expect(release.isStableRelease('1.0.0+6374412')).to.be.true;
+    });
+
+    it('should return false if given a snapshot release candidate version', function() {
+      m.chai.expect(release.isStableRelease('1.0.0-rc.2+6374412')).to.be.false;
+    });
+
+    it('should return false if given a snapshot beta version', function() {
+      m.chai.expect(release.isStableRelease('1.0.0-beta.1+6374412')).to.be.false;
+    });
+
+  });
+
+});
diff --git a/tests/shared/s3-packages.spec.js b/tests/shared/s3-packages.spec.js
new file mode 100644
index 00000000..655a80e0
--- /dev/null
+++ b/tests/shared/s3-packages.spec.js
@@ -0,0 +1,1090 @@
+/*
+ * Copyright 2017 resin.io
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+'use strict';
+
+const m = require('mochainon');
+const Bluebird = require('bluebird');
+const request = Bluebird.promisifyAll(require('request'));
+const nock = require('nock');
+const s3Packages = require('../../lib/shared/s3-packages');
+const release = require('../../lib/shared/release');
+
+describe('Shared: s3Packages', function() {
+
+  describe('.getBucketUrlFromReleaseType()', function() {
+
+    it('should return the production URL if given a production release type', function() {
+      const bucketUrl = s3Packages.getBucketUrlFromReleaseType(release.RELEASE_TYPE.PRODUCTION);
+      m.chai.expect(bucketUrl).to.equal(s3Packages.BUCKET_URL.PRODUCTION);
+    });
+
+    it('should return the snapshot URL if given a snapshot release type', function() {
+      const bucketUrl = s3Packages.getBucketUrlFromReleaseType(release.RELEASE_TYPE.SNAPSHOT);
+      m.chai.expect(bucketUrl).to.equal(s3Packages.BUCKET_URL.SNAPSHOT);
+    });
+
+    it('should return null if given an unknown release type', function() {
+      const bucketUrl = s3Packages.getBucketUrlFromReleaseType(release.RELEASE_TYPE.UNKNOWN);
+      m.chai.expect(bucketUrl).to.be.null;
+    });
+
+  });
+
+  describe('.getRemoteVersions()', function() {
+
+    beforeEach(function() {
+      s3Packages.getRemoteVersions.cache.clear();
+    });
+
+    it('should be rejected if url is null', function(done) {
+      s3Packages.getRemoteVersions(null).catch((error) => {
+        m.chai.expect(error).to.be.an.instanceof(Error);
+        m.chai.expect(error.message).to.equal('Invalid bucket url: null');
+        done();
+      });
+    });
+
+    describe('given an empty bucket', function() {
+
+      beforeEach(function() {
+        nock(s3Packages.BUCKET_URL.PRODUCTION).get('/').reply(200, `
+          <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+            <Name>resin-production-downloads</Name>
+            <Prefix/>
+            <Marker/>
+            <MaxKeys>1000</MaxKeys>
+            <IsTruncated>false</IsTruncated>
+          </ListBucketResult>
+        `);
+      });
+
+      afterEach(function() {
+        nock.cleanAll();
+      });
+
+      it('should resolve an empty array', function(done) {
+        s3Packages.getRemoteVersions(s3Packages.BUCKET_URL.PRODUCTION).then((versions) => {
+          m.chai.expect(versions).to.deep.equal([]);
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given many versions', function() {
+
+      beforeEach(function() {
+        nock(s3Packages.BUCKET_URL.PRODUCTION).get('/').reply(200, `
+          <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+            <Name>resin-production-downloads</Name>
+            <Prefix/>
+            <Marker/>
+            <MaxKeys>1000</MaxKeys>
+            <IsTruncated>false</IsTruncated>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-darwin-x64.dmg</Key>
+              <LastModified>2016-11-28T16:12:28.000Z</LastModified>
+              <ETag>"5818b791238e7a03c2128149cbcabfd6"</ETag>
+              <Size>73532901</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-darwin-x64.zip</Key>
+              <LastModified>2016-11-28T16:52:26.000Z</LastModified>
+              <ETag>"e9b4e7350e352298de293bb44aa72e9c"</ETag>
+              <Size>154896510</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-linux-x64.zip</Key>
+              <LastModified>2016-11-28T18:27:10.000Z</LastModified>
+              <ETag>"40e2b620d2aecb87e44c8675f2028d03"</ETag>
+              <Size>71186664</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-linux-x86.zip</Key>
+              <LastModified>2016-11-28T17:56:56.000Z</LastModified>
+              <ETag>"e585bd96708d79845015cc57d86a3f60"</ETag>
+              <Size>72576097</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x64.exe</Key>
+              <LastModified>2016-11-28T20:01:43.000Z</LastModified>
+              <ETag>"f6134fedb835af59db063810fb511ef0"</ETag>
+              <Size>84717856</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x64.zip</Key>
+              <LastModified>2016-11-28T20:21:55.000Z</LastModified>
+              <ETag>"8c6db54d2210355563519c67c1618664"</ETag>
+              <Size>82056508</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x86.exe</Key>
+              <LastModified>2016-11-28T20:39:43.000Z</LastModified>
+              <ETag>"fdcc21ec9a7312b781c03b8d469e843d"</ETag>
+              <Size>74151760</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x86.zip</Key>
+              <LastModified>2016-11-28T20:57:31.000Z</LastModified>
+              <ETag>"992c2c021575d5909dbe77a759b67464"</ETag>
+              <Size>71846504</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-darwin-x64.dmg</Key>
+              <LastModified>2017-01-17T00:58:49.000Z</LastModified>
+              <ETag>"81a1b5a330a230ca6d89db97b3399420"</ETag>
+              <Size>58442097</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-darwin-x64.zip</Key>
+              <LastModified>2017-01-17T01:18:56.000Z</LastModified>
+              <ETag>"81b438a9f7b2d4c871cfbd5aedd96975"</ETag>
+              <Size>139834277</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-linux-x64.zip</Key>
+              <LastModified>2017-01-17T02:01:01.000Z</LastModified>
+              <ETag>"35660b65233082a10c00828ea1e50c38"</ETag>
+              <Size>55960697</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-linux-x86.zip</Key>
+              <LastModified>2017-01-17T02:18:20.000Z</LastModified>
+              <ETag>"1bafcc0d5d2c8d43bd2ce8948bb51a8b"</ETag>
+              <Size>57331229</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x64.exe</Key>
+              <LastModified>2017-01-17T05:48:02.000Z</LastModified>
+              <ETag>"b0a6154ec79d17618632ac62eb30b44e"</ETag>
+              <Size>84802632</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x64.zip</Key>
+              <LastModified>2017-01-17T06:14:46.000Z</LastModified>
+              <ETag>"f25c5dfa8378e608c25fafbe65e90162"</ETag>
+              <Size>82235087</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x86.exe</Key>
+              <LastModified>2017-01-17T06:42:58.000Z</LastModified>
+              <ETag>"183b6eb648b0a78a1e99c9182f90194e"</ETag>
+              <Size>74264232</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x86.zip</Key>
+              <LastModified>2017-01-17T07:05:55.000Z</LastModified>
+              <ETag>"d8d860013f038bed3f52534053b08382"</ETag>
+              <Size>72042525</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+          </ListBucketResult>
+        `);
+      });
+
+      afterEach(function() {
+        nock.cleanAll();
+      });
+
+      it('should resolve all the available versions', function(done) {
+        s3Packages.getRemoteVersions(s3Packages.BUCKET_URL.PRODUCTION).then((versions) => {
+          m.chai.expect(versions).to.deep.equal([
+            '1.0.0-beta.17',
+            '1.0.0-beta.18'
+          ]);
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given a version is being uploaded', function() {
+
+      beforeEach(function() {
+        nock(s3Packages.BUCKET_URL.PRODUCTION).get('/').reply(200, `
+          <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+            <Name>resin-production-downloads</Name>
+            <Prefix/>
+            <Marker/>
+            <MaxKeys>1000</MaxKeys>
+            <IsTruncated>false</IsTruncated>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-darwin-x64.dmg</Key>
+              <LastModified>2016-11-28T16:12:28.000Z</LastModified>
+              <ETag>"5818b791238e7a03c2128149cbcabfd6"</ETag>
+              <Size>73532901</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-darwin-x64.zip</Key>
+              <LastModified>2016-11-28T16:52:26.000Z</LastModified>
+              <ETag>"e9b4e7350e352298de293bb44aa72e9c"</ETag>
+              <Size>154896510</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-linux-x64.zip</Key>
+              <LastModified>2016-11-28T18:27:10.000Z</LastModified>
+              <ETag>"40e2b620d2aecb87e44c8675f2028d03"</ETag>
+              <Size>71186664</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-linux-x86.zip</Key>
+              <LastModified>2016-11-28T17:56:56.000Z</LastModified>
+              <ETag>"e585bd96708d79845015cc57d86a3f60"</ETag>
+              <Size>72576097</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x64.exe</Key>
+              <LastModified>2016-11-28T20:01:43.000Z</LastModified>
+              <ETag>"f6134fedb835af59db063810fb511ef0"</ETag>
+              <Size>84717856</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x64.zip</Key>
+              <LastModified>2016-11-28T20:21:55.000Z</LastModified>
+              <ETag>"8c6db54d2210355563519c67c1618664"</ETag>
+              <Size>82056508</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x86.exe</Key>
+              <LastModified>2016-11-28T20:39:43.000Z</LastModified>
+              <ETag>"fdcc21ec9a7312b781c03b8d469e843d"</ETag>
+              <Size>74151760</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x86.zip</Key>
+              <LastModified>2016-11-28T20:57:31.000Z</LastModified>
+              <ETag>"992c2c021575d5909dbe77a759b67464"</ETag>
+              <Size>71846504</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-darwin-x64.dmg</Key>
+              <LastModified>2017-01-17T00:58:49.000Z</LastModified>
+              <ETag>"81a1b5a330a230ca6d89db97b3399420"</ETag>
+              <Size>58442097</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-darwin-x64.zip</Key>
+              <LastModified>2017-01-17T01:18:56.000Z</LastModified>
+              <ETag>"81b438a9f7b2d4c871cfbd5aedd96975"</ETag>
+              <Size>139834277</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-linux-x64.zip</Key>
+              <LastModified>2017-01-17T02:01:01.000Z</LastModified>
+              <ETag>"35660b65233082a10c00828ea1e50c38"</ETag>
+              <Size>55960697</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-linux-x86.zip</Key>
+              <LastModified>2017-01-17T02:18:20.000Z</LastModified>
+              <ETag>"1bafcc0d5d2c8d43bd2ce8948bb51a8b"</ETag>
+              <Size>57331229</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x64.exe</Key>
+              <LastModified>2017-01-17T05:48:02.000Z</LastModified>
+              <ETag>"b0a6154ec79d17618632ac62eb30b44e"</ETag>
+              <Size>84802632</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x64.zip</Key>
+              <LastModified>2017-01-17T06:14:46.000Z</LastModified>
+              <ETag>"f25c5dfa8378e608c25fafbe65e90162"</ETag>
+              <Size>82235087</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x86.exe</Key>
+              <LastModified>2017-01-17T06:42:58.000Z</LastModified>
+              <ETag>"183b6eb648b0a78a1e99c9182f90194e"</ETag>
+              <Size>74264232</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+          </ListBucketResult>
+        `);
+      });
+
+      afterEach(function() {
+        nock.cleanAll();
+      });
+
+      it('should resolve all the entirely available versions', function(done) {
+        s3Packages.getRemoteVersions(s3Packages.BUCKET_URL.PRODUCTION).then((versions) => {
+          m.chai.expect(versions).to.deep.equal([
+            '1.0.0-beta.17'
+          ]);
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given other programs in the bucket', function() {
+
+      beforeEach(function() {
+        nock(s3Packages.BUCKET_URL.PRODUCTION).get('/').reply(200, `
+          <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+            <Name>resin-production-downloads</Name>
+            <Prefix/>
+            <Marker/>
+            <MaxKeys>1000</MaxKeys>
+            <IsTruncated>false</IsTruncated>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-darwin-x64.dmg</Key>
+              <LastModified>2016-11-28T16:12:28.000Z</LastModified>
+              <ETag>"5818b791238e7a03c2128149cbcabfd6"</ETag>
+              <Size>73532901</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-darwin-x64.zip</Key>
+              <LastModified>2016-11-28T16:52:26.000Z</LastModified>
+              <ETag>"e9b4e7350e352298de293bb44aa72e9c"</ETag>
+              <Size>154896510</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-linux-x64.zip</Key>
+              <LastModified>2016-11-28T18:27:10.000Z</LastModified>
+              <ETag>"40e2b620d2aecb87e44c8675f2028d03"</ETag>
+              <Size>71186664</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-linux-x86.zip</Key>
+              <LastModified>2016-11-28T17:56:56.000Z</LastModified>
+              <ETag>"e585bd96708d79845015cc57d86a3f60"</ETag>
+              <Size>72576097</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x64.exe</Key>
+              <LastModified>2016-11-28T20:01:43.000Z</LastModified>
+              <ETag>"f6134fedb835af59db063810fb511ef0"</ETag>
+              <Size>84717856</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x64.zip</Key>
+              <LastModified>2016-11-28T20:21:55.000Z</LastModified>
+              <ETag>"8c6db54d2210355563519c67c1618664"</ETag>
+              <Size>82056508</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x86.exe</Key>
+              <LastModified>2016-11-28T20:39:43.000Z</LastModified>
+              <ETag>"fdcc21ec9a7312b781c03b8d469e843d"</ETag>
+              <Size>74151760</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>etcher/1.0.0-beta.17/Etcher-1.0.0-beta.17-win32-x86.zip</Key>
+              <LastModified>2016-11-28T20:57:31.000Z</LastModified>
+              <ETag>"992c2c021575d5909dbe77a759b67464"</ETag>
+              <Size>71846504</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-darwin-x64.dmg</Key>
+              <LastModified>2017-01-17T00:58:49.000Z</LastModified>
+              <ETag>"81a1b5a330a230ca6d89db97b3399420"</ETag>
+              <Size>58442097</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-darwin-x64.zip</Key>
+              <LastModified>2017-01-17T01:18:56.000Z</LastModified>
+              <ETag>"81b438a9f7b2d4c871cfbd5aedd96975"</ETag>
+              <Size>139834277</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-linux-x64.zip</Key>
+              <LastModified>2017-01-17T02:01:01.000Z</LastModified>
+              <ETag>"35660b65233082a10c00828ea1e50c38"</ETag>
+              <Size>55960697</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-linux-x86.zip</Key>
+              <LastModified>2017-01-17T02:18:20.000Z</LastModified>
+              <ETag>"1bafcc0d5d2c8d43bd2ce8948bb51a8b"</ETag>
+              <Size>57331229</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x64.exe</Key>
+              <LastModified>2017-01-17T05:48:02.000Z</LastModified>
+              <ETag>"b0a6154ec79d17618632ac62eb30b44e"</ETag>
+              <Size>84802632</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x64.zip</Key>
+              <LastModified>2017-01-17T06:14:46.000Z</LastModified>
+              <ETag>"f25c5dfa8378e608c25fafbe65e90162"</ETag>
+              <Size>82235087</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x86.exe</Key>
+              <LastModified>2017-01-17T06:42:58.000Z</LastModified>
+              <ETag>"183b6eb648b0a78a1e99c9182f90194e"</ETag>
+              <Size>74264232</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x86.zip</Key>
+              <LastModified>2017-01-17T07:05:55.000Z</LastModified>
+              <ETag>"d8d860013f038bed3f52534053b08382"</ETag>
+              <Size>72042525</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+          </ListBucketResult>
+        `);
+      });
+
+      afterEach(function() {
+        nock.cleanAll();
+      });
+
+      it('should not consider the other packages', function(done) {
+        s3Packages.getRemoteVersions(s3Packages.BUCKET_URL.PRODUCTION).then((versions) => {
+          m.chai.expect(versions).to.deep.equal([
+            '1.0.0-beta.17'
+          ]);
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given only other programs in the bucket', function() {
+
+      beforeEach(function() {
+        nock(s3Packages.BUCKET_URL.PRODUCTION).get('/').reply(200, `
+          <ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+            <Name>resin-production-downloads</Name>
+            <Prefix/>
+            <Marker/>
+            <MaxKeys>1000</MaxKeys>
+            <IsTruncated>false</IsTruncated>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-darwin-x64.zip</Key>
+              <LastModified>2017-01-17T01:18:56.000Z</LastModified>
+              <ETag>"81b438a9f7b2d4c871cfbd5aedd96975"</ETag>
+              <Size>139834277</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-linux-x64.zip</Key>
+              <LastModified>2017-01-17T02:01:01.000Z</LastModified>
+              <ETag>"35660b65233082a10c00828ea1e50c38"</ETag>
+              <Size>55960697</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-linux-x86.zip</Key>
+              <LastModified>2017-01-17T02:18:20.000Z</LastModified>
+              <ETag>"1bafcc0d5d2c8d43bd2ce8948bb51a8b"</ETag>
+              <Size>57331229</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x64.exe</Key>
+              <LastModified>2017-01-17T05:48:02.000Z</LastModified>
+              <ETag>"b0a6154ec79d17618632ac62eb30b44e"</ETag>
+              <Size>84802632</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x64.zip</Key>
+              <LastModified>2017-01-17T06:14:46.000Z</LastModified>
+              <ETag>"f25c5dfa8378e608c25fafbe65e90162"</ETag>
+              <Size>82235087</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x86.exe</Key>
+              <LastModified>2017-01-17T06:42:58.000Z</LastModified>
+              <ETag>"183b6eb648b0a78a1e99c9182f90194e"</ETag>
+              <Size>74264232</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+            <Contents>
+              <Key>notEtcher/1.0.0-beta.18/Etcher-1.0.0-beta.18-win32-x86.zip</Key>
+              <LastModified>2017-01-17T07:05:55.000Z</LastModified>
+              <ETag>"d8d860013f038bed3f52534053b08382"</ETag>
+              <Size>72042525</Size>
+              <StorageClass>STANDARD</StorageClass>
+            </Contents>
+          </ListBucketResult>
+        `);
+      });
+
+      afterEach(function() {
+        nock.cleanAll();
+      });
+
+      it('should resolve an empty array', function(done) {
+        s3Packages.getRemoteVersions(s3Packages.BUCKET_URL.PRODUCTION).then((versions) => {
+          m.chai.expect(versions).to.deep.equal([]);
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given an unsuccessful request', function() {
+
+      beforeEach(function() {
+        nock(s3Packages.BUCKET_URL.PRODUCTION).get('/').reply(500);
+      });
+
+      afterEach(function() {
+        nock.cleanAll();
+      });
+
+      it('should be rejected with an error', function(done) {
+        s3Packages.getRemoteVersions(s3Packages.BUCKET_URL.PRODUCTION).catch((error) => {
+          m.chai.expect(error).to.be.an.instanceof(Error);
+          done();
+        });
+      });
+
+    });
+
+    describe('given ENOTFOUND', function() {
+
+      beforeEach(function() {
+        const error = new Error('ENOTFOUND');
+        error.code = 'ENOTFOUND';
+
+        this.requestGetAsyncStub = m.sinon.stub(request, 'getAsync');
+        this.requestGetAsyncStub.returns(Bluebird.reject(error));
+      });
+
+      afterEach(function() {
+        this.requestGetAsyncStub.restore();
+      });
+
+      it('should resolve an empty array', function(done) {
+        s3Packages.getRemoteVersions(s3Packages.BUCKET_URL.PRODUCTION).then((versions) => {
+          m.chai.expect(versions).to.deep.equal([]);
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given ETIMEDOUT', function() {
+
+      beforeEach(function() {
+        const error = new Error('ETIMEDOUT');
+        error.code = 'ETIMEDOUT';
+
+        this.requestGetAsyncStub = m.sinon.stub(request, 'getAsync');
+        this.requestGetAsyncStub.returns(Bluebird.reject(error));
+      });
+
+      afterEach(function() {
+        this.requestGetAsyncStub.restore();
+      });
+
+      it('should resolve an empty array', function(done) {
+        s3Packages.getRemoteVersions(s3Packages.BUCKET_URL.PRODUCTION).then((versions) => {
+          m.chai.expect(versions).to.deep.equal([]);
+          done();
+        }).catch(done);
+      });
+
+    });
+
+  });
+
+  describe('.getLatestVersion()', function() {
+
+    describe('given a valid production ETCHER_FAKE_S3_LATEST_VERSION environment variable', function() {
+
+      beforeEach(function() {
+        process.env.ETCHER_FAKE_S3_LATEST_VERSION = '9.9.9';
+      });
+
+      afterEach(function() {
+        Reflect.deleteProperty(process.env, 'ETCHER_FAKE_S3_LATEST_VERSION');
+      });
+
+      describe('given a production release type', function() {
+
+        it('should resolve the variable', function(done) {
+          s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION).then((latestVersion) => {
+            m.chai.expect(latestVersion).to.equal('9.9.9');
+            done();
+          }).catch(done);
+        });
+
+      });
+
+      describe('given a snapshot release type', function() {
+
+        it('should resolve undefined', function(done) {
+          s3Packages.getLatestVersion(release.RELEASE_TYPE.SNAPSHOT).then((latestVersion) => {
+            m.chai.expect(latestVersion).to.be.undefined;
+            done();
+          }).catch(done);
+        });
+
+      });
+
+    });
+
+    describe('given a valid snapshot ETCHER_FAKE_S3_LATEST_VERSION environment variable', function() {
+
+      beforeEach(function() {
+        process.env.ETCHER_FAKE_S3_LATEST_VERSION = '9.9.9+7b47334';
+      });
+
+      afterEach(function() {
+        Reflect.deleteProperty(process.env, 'ETCHER_FAKE_S3_LATEST_VERSION');
+      });
+
+      describe('given a snapshot release type', function() {
+
+        it('should resolve the variable', function(done) {
+          s3Packages.getLatestVersion(release.RELEASE_TYPE.SNAPSHOT).then((latestVersion) => {
+            m.chai.expect(latestVersion).to.equal('9.9.9+7b47334');
+            done();
+          }).catch(done);
+        });
+
+      });
+
+      describe('given a production release type', function() {
+
+        it('should resolve undefined', function(done) {
+          s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION).then((latestVersion) => {
+            m.chai.expect(latestVersion).to.be.undefined;
+            done();
+          }).catch(done);
+        });
+
+      });
+
+    });
+
+    describe('given an invalid ETCHER_FAKE_S3_LATEST_VERSION environment variable', function() {
+
+      beforeEach(function() {
+        process.env.ETCHER_FAKE_S3_LATEST_VERSION = 'foo';
+      });
+
+      afterEach(function() {
+        Reflect.deleteProperty(process.env, 'ETCHER_FAKE_S3_LATEST_VERSION');
+      });
+
+      it('should resolve undefined', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.be.undefined;
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given an invalid release type', function() {
+
+      it('should be rejected with an error', function(done) {
+        s3Packages.getLatestVersion('foobar').catch((error) => {
+          m.chai.expect(error).to.be.an.instanceof(Error);
+          m.chai.expect(error.message).to.equal('No bucket URL found for release type: foobar');
+          done();
+        });
+      });
+
+    });
+
+    describe('given no remote versions', function() {
+
+      beforeEach(function() {
+        this.getRemoteVersionsStub = m.sinon.stub(s3Packages, 'getRemoteVersions');
+        this.getRemoteVersionsStub.returns(Bluebird.resolve([]));
+      });
+
+      afterEach(function() {
+        this.getRemoteVersionsStub.restore();
+      });
+
+      it('should resolve undefined', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.be.undefined;
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given a single version', function() {
+
+      beforeEach(function() {
+        this.getRemoteVersionsStub = m.sinon.stub(s3Packages, 'getRemoteVersions');
+        this.getRemoteVersionsStub.returns(Bluebird.resolve([ '0.5.0' ]));
+      });
+
+      afterEach(function() {
+        this.getRemoteVersionsStub.restore();
+      });
+
+      it('should resolve the version', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('0.5.0');
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given multiple versions', function() {
+
+      beforeEach(function() {
+        this.getRemoteVersionsStub = m.sinon.stub(s3Packages, 'getRemoteVersions');
+        this.getRemoteVersionsStub.returns(Bluebird.resolve([
+          '2.1.0',
+          '1.0.0',
+          '0.5.0',
+          '0.4.0'
+        ]));
+      });
+
+      afterEach(function() {
+        this.getRemoteVersionsStub.restore();
+      });
+
+      it('should resolve the latest version', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('2.1.0');
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given a greater production version in a snapshot bucket', function() {
+
+      beforeEach(function() {
+        this.getRemoteVersionsStub = m.sinon.stub(s3Packages, 'getRemoteVersions');
+        this.getRemoteVersionsStub.returns(Bluebird.resolve([
+          '1.0.0+abb6139',
+          '2.0.0'
+        ]));
+      });
+
+      afterEach(function() {
+        this.getRemoteVersionsStub.restore();
+      });
+
+      it('should ignore production versions', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.SNAPSHOT).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('1.0.0+abb6139');
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given a greater snapshot version in a production bucket', function() {
+
+      beforeEach(function() {
+        this.getRemoteVersionsStub = m.sinon.stub(s3Packages, 'getRemoteVersions');
+        this.getRemoteVersionsStub.returns(Bluebird.resolve([
+          '1.0.0',
+          '2.0.0+abb6139'
+        ]));
+      });
+
+      afterEach(function() {
+        this.getRemoteVersionsStub.restore();
+      });
+
+      it('should ignore snapshot versions', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('1.0.0');
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given production v1, v2, and v3 remote versions', function() {
+
+      beforeEach(function() {
+        this.getRemoteVersionsStub = m.sinon.stub(s3Packages, 'getRemoteVersions');
+        this.getRemoteVersionsStub.returns(Bluebird.resolve([
+          '3.0.1',
+          '3.0.0',
+          '2.1.1',
+          '2.1.0',
+          '2.0.0',
+          '1.2.0',
+          '1.1.0',
+          '1.0.2',
+          '1.0.1',
+          '1.0.0'
+        ]));
+      });
+
+      afterEach(function() {
+        this.getRemoteVersionsStub.restore();
+      });
+
+      it('should be able to resolve the latest v1 version with a semver range', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          range: '<2.0.0'
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('1.2.0');
+          done();
+        }).catch(done);
+      });
+
+      it('should be able to resolve the latest v2 version with a semver range', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          range: '>=2.0.0 <3.0.0'
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('2.1.1');
+          done();
+        }).catch(done);
+      });
+
+      it('should be able to resolve the latest v3 version with a semver range', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          range: '>=3.0.0'
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('3.0.1');
+          done();
+        }).catch(done);
+      });
+
+      it('should resolve the latest version if includeUnstableChannel is true', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          includeUnstableChannel: true
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('3.0.1');
+          done();
+        }).catch(done);
+      });
+
+      it('should resolve the latest version if includeUnstableChannel is false', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          includeUnstableChannel: false
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('3.0.1');
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given unstable and stable versions where the last version is stable', function() {
+
+      beforeEach(function() {
+        this.getRemoteVersionsStub = m.sinon.stub(s3Packages, 'getRemoteVersions');
+        this.getRemoteVersionsStub.returns(Bluebird.resolve([
+          '3.0.1',
+          '3.0.0-beta.2',
+          '3.0.0-beta.1',
+          '2.1.1',
+          '2.1.0-beta.15',
+          '1.0.0'
+        ]));
+      });
+
+      afterEach(function() {
+        this.getRemoteVersionsStub.restore();
+      });
+
+      it('should resolve the latest stable version if includeUnstableChannel is false', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          includeUnstableChannel: false
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('3.0.1');
+          done();
+        }).catch(done);
+      });
+
+      it('should resolve the latest stable version if includeUnstableChannel is true', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          includeUnstableChannel: true
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('3.0.1');
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given unstable and stable versions where the last version is unstable', function() {
+
+      beforeEach(function() {
+        this.getRemoteVersionsStub = m.sinon.stub(s3Packages, 'getRemoteVersions');
+        this.getRemoteVersionsStub.returns(Bluebird.resolve([
+          '3.0.2-beta.1',
+          '3.0.1',
+          '3.0.0-beta.2',
+          '3.0.0-beta.1',
+          '2.1.1',
+          '2.1.0-beta.15',
+          '1.0.0'
+        ]));
+      });
+
+      afterEach(function() {
+        this.getRemoteVersionsStub.restore();
+      });
+
+      it('should resolve the latest stable version if includeUnstableChannel is false', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          includeUnstableChannel: false
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('3.0.1');
+          done();
+        }).catch(done);
+      });
+
+      it('should resolve the latest unstable version if includeUnstableChannel is true', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          includeUnstableChannel: true
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('3.0.2-beta.1');
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given pre-release production remote versions', function() {
+
+      beforeEach(function() {
+        this.getRemoteVersionsStub = m.sinon.stub(s3Packages, 'getRemoteVersions');
+        this.getRemoteVersionsStub.returns(Bluebird.resolve([
+          '2.0.0-beta.3',
+          '2.0.0-beta.2',
+          '2.0.0-beta.1',
+          '2.0.0-beta.0',
+          '1.0.0-beta.19',
+          '1.0.0-beta.18',
+          '1.0.0-beta.17',
+          '1.0.0-beta.16'
+        ]));
+      });
+
+      afterEach(function() {
+        this.getRemoteVersionsStub.restore();
+      });
+
+      it('should be able to resolve the latest v2 pre-release version with a non pre-release semver range', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          range: '>=2.0.0',
+          includeUnstableChannel: true
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('2.0.0-beta.3');
+          done();
+        }).catch(done);
+      });
+
+      it('should resolve undefined if includeUnstableChannel is false', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.PRODUCTION, {
+          includeUnstableChannel: false
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.be.undefined;
+          done();
+        }).catch(done);
+      });
+
+    });
+
+    describe('given pre-release snapshot remote versions', function() {
+
+      beforeEach(function() {
+        this.getRemoteVersionsStub = m.sinon.stub(s3Packages, 'getRemoteVersions');
+        this.getRemoteVersionsStub.returns(Bluebird.resolve([
+          '2.0.0-beta.3+5370ef2',
+          '2.0.0-beta.2+ff495a4',
+          '2.0.0-beta.1+07b6dd2',
+          '2.0.0-beta.0+4cd8776',
+          '1.0.0-beta.19+7b47334',
+          '1.0.0-beta.18+7fe503c',
+          '1.0.0-beta.17+76aa05f',
+          '1.0.0-beta.16+802d9ab'
+        ]));
+      });
+
+      afterEach(function() {
+        this.getRemoteVersionsStub.restore();
+      });
+
+      it('should be able to resolve the latest v2 pre-release version with a non pre-release semver range', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.SNAPSHOT, {
+          range: '>=2.0.0',
+          includeUnstableChannel: true
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.equal('2.0.0-beta.3+5370ef2');
+          done();
+        }).catch(done);
+      });
+
+      it('should resolve undefined if includeUnstableChannel is false', function(done) {
+        s3Packages.getLatestVersion(release.RELEASE_TYPE.SNAPSHOT, {
+          includeUnstableChannel: false
+        }).then((latestVersion) => {
+          m.chai.expect(latestVersion).to.be.undefined;
+          done();
+        }).catch(done);
+      });
+
+    });
+
+  });
+
+});