diff --git a/atom/browser/api/atom_api_window.cc b/atom/browser/api/atom_api_window.cc
index ae5eec64cf93..399b4d36d2ec 100644
--- a/atom/browser/api/atom_api_window.cc
+++ b/atom/browser/api/atom_api_window.cc
@@ -52,11 +52,6 @@ namespace api {
 
 namespace {
 
-// This function is implemented in JavaScript
-using DeprecatedOptionsCheckCallback =
-    base::Callback<std::string(v8::Local<v8::Value>)>;
-DeprecatedOptionsCheckCallback g_deprecated_options_check;
-
 void OnCapturePageDone(
     v8::Isolate* isolate,
     const base::Callback<void(const gfx::Image&)>& callback,
@@ -66,52 +61,6 @@ void OnCapturePageDone(
   callback.Run(gfx::Image::CreateFrom1xBitmap(bitmap));
 }
 
-// Converts min-width to minWidth, returns false if no conversion is needed.
-bool TranslateOldKey(const std::string& key, std::string* new_key) {
-  if (key.find('-') == std::string::npos)
-    return false;
-  new_key->reserve(key.size());
-  bool next_upper_case = false;
-  for (char c : key) {
-    if (c == '-') {
-      next_upper_case = true;
-    } else if (next_upper_case) {
-      new_key->push_back(base::ToUpperASCII(c));
-      next_upper_case = false;
-    } else {
-      new_key->push_back(c);
-    }
-  }
-  return true;
-}
-
-// Converts min-width to minWidth recursively in the dictionary.
-void TranslateOldOptions(v8::Isolate* isolate, v8::Local<v8::Object> options) {
-  auto context = isolate->GetCurrentContext();
-  auto maybe_keys = options->GetOwnPropertyNames(context);
-  if (maybe_keys.IsEmpty())
-    return;
-  std::vector<std::string> keys;
-  if (!mate::ConvertFromV8(isolate, maybe_keys.ToLocalChecked(), &keys))
-    return;
-  mate::Dictionary dict(isolate, options);
-  for (const auto& key : keys) {
-    v8::Local<v8::Value> value;
-    if (!dict.Get(key, &value))  // Shouldn't happen, but guard it anyway.
-      continue;
-    // Go recursively.
-    v8::Local<v8::Object> sub_options;
-    if (mate::ConvertFromV8(isolate, value, &sub_options))
-      TranslateOldOptions(isolate, sub_options);
-    // Translate key.
-    std::string new_key;
-    if (TranslateOldKey(key, &new_key)) {
-      dict.Set(new_key, value);
-      dict.Delete(key);
-    }
-  }
-}
-
 // Converts binary data to Buffer.
 v8::Local<v8::Value> ToBuffer(v8::Isolate* isolate, void* val, int size) {
   auto buffer = node::Buffer::Copy(isolate, static_cast<char*>(val), size);
@@ -125,23 +74,12 @@ v8::Local<v8::Value> ToBuffer(v8::Isolate* isolate, void* val, int size) {
 
 
 Window::Window(v8::Isolate* isolate, const mate::Dictionary& options) {
-  // Be compatible with old style field names like min-width.
-  TranslateOldOptions(isolate, options.GetHandle());
-
   // Use options.webPreferences to create WebContents.
   mate::Dictionary web_preferences = mate::Dictionary::CreateEmpty(isolate);
   options.Get(options::kWebPreferences, &web_preferences);
 
-  // Be compatible with old options which are now in web_preferences.
-  v8::Local<v8::Value> value;
-  if (options.Get(options::kNodeIntegration, &value))
-    web_preferences.Set(options::kNodeIntegration, value);
-  if (options.Get(options::kPreloadScript, &value))
-    web_preferences.Set(options::kPreloadScript, value);
-  if (options.Get(options::kZoomFactor, &value))
-    web_preferences.Set(options::kZoomFactor, value);
-
   // Copy the backgroundColor to webContents.
+  v8::Local<v8::Value> value;
   if (options.Get(options::kBackgroundColor, &value))
     web_preferences.Set(options::kBackgroundColor, value);
 
@@ -304,13 +242,6 @@ mate::WrappableBase* Window::New(v8::Isolate* isolate, mate::Arguments* args) {
     options = mate::Dictionary::CreateEmpty(isolate);
   }
 
-  std::string deprecation_message = g_deprecated_options_check.Run(
-      options.GetHandle());
-  if (deprecation_message.length() > 0) {
-    args->ThrowError(deprecation_message);
-    return nullptr;
-  }
-
   return new Window(isolate, options);
 }
 
@@ -822,10 +753,6 @@ v8::Local<v8::Value> Window::From(v8::Isolate* isolate,
     return v8::Null(isolate);
 }
 
-void SetDeprecatedOptionsCheck(const DeprecatedOptionsCheckCallback& callback) {
-  g_deprecated_options_check = callback;
-}
-
 }  // namespace api
 
 }  // namespace atom
@@ -848,8 +775,6 @@ void Initialize(v8::Local<v8::Object> exports, v8::Local<v8::Value> unused,
 
   mate::Dictionary dict(isolate, exports);
   dict.Set("BrowserWindow", browser_window);
-  dict.SetMethod("_setDeprecatedOptionsCheck",
-                 &atom::api::SetDeprecatedOptionsCheck);
 }
 
 }  // namespace
diff --git a/atom/browser/resources/mac/Info.plist b/atom/browser/resources/mac/Info.plist
index 9d04617b2098..32d218fa768c 100644
--- a/atom/browser/resources/mac/Info.plist
+++ b/atom/browser/resources/mac/Info.plist
@@ -17,9 +17,9 @@
   <key>CFBundleIconFile</key>
   <string>electron.icns</string>
   <key>CFBundleVersion</key>
-  <string>0.37.8</string>
+  <string>1.0.0</string>
   <key>CFBundleShortVersionString</key>
-  <string>0.37.8</string>
+  <string>1.0.0</string>
   <key>LSApplicationCategoryType</key>
   <string>public.app-category.developer-tools</string>
   <key>LSMinimumSystemVersion</key>
diff --git a/atom/browser/resources/win/atom.rc b/atom/browser/resources/win/atom.rc
index 9f74c14d4461..6163c1ffce6b 100644
--- a/atom/browser/resources/win/atom.rc
+++ b/atom/browser/resources/win/atom.rc
@@ -56,8 +56,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 0,37,8,0
- PRODUCTVERSION 0,37,8,0
+ FILEVERSION 1,0,0,0
+ PRODUCTVERSION 1,0,0,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -74,12 +74,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "GitHub, Inc."
             VALUE "FileDescription", "Electron"
-            VALUE "FileVersion", "0.37.8"
+            VALUE "FileVersion", "1.0.0"
             VALUE "InternalName", "electron.exe"
             VALUE "LegalCopyright", "Copyright (C) 2015 GitHub, Inc. All rights reserved."
             VALUE "OriginalFilename", "electron.exe"
             VALUE "ProductName", "Electron"
-            VALUE "ProductVersion", "0.37.8"
+            VALUE "ProductVersion", "1.0.0"
             VALUE "SquirrelAwareVersion", "1"
         END
     END
diff --git a/atom/common/api/atom_api_native_image.cc b/atom/common/api/atom_api_native_image.cc
index 1c90fe7080fb..e440f9c518bd 100644
--- a/atom/common/api/atom_api_native_image.cc
+++ b/atom/common/api/atom_api_native_image.cc
@@ -318,7 +318,6 @@ void NativeImage::BuildPrototype(
       .SetMethod("toJpeg", &NativeImage::ToJPEG)
       .SetMethod("getNativeHandle", &NativeImage::GetNativeHandle)
       .SetMethod("toDataURL", &NativeImage::ToDataURL)
-      .SetMethod("toDataUrl", &NativeImage::ToDataURL)  // deprecated.
       .SetMethod("isEmpty", &NativeImage::IsEmpty)
       .SetMethod("getSize", &NativeImage::GetSize)
       .SetMethod("setTemplateImage", &NativeImage::SetTemplateImage)
diff --git a/atom/common/atom_version.h b/atom/common/atom_version.h
index 4ce73bc0aeec..561341cfaeab 100644
--- a/atom/common/atom_version.h
+++ b/atom/common/atom_version.h
@@ -5,9 +5,9 @@
 #ifndef ATOM_VERSION_H
 #define ATOM_VERSION_H
 
-#define ATOM_MAJOR_VERSION 0
-#define ATOM_MINOR_VERSION 37
-#define ATOM_PATCH_VERSION 8
+#define ATOM_MAJOR_VERSION 1
+#define ATOM_MINOR_VERSION 0
+#define ATOM_PATCH_VERSION 0
 
 #define ATOM_VERSION_IS_RELEASE 1
 
diff --git a/default_app/index.html b/default_app/index.html
index 21fbf93cc30e..edfb3e6ddc92 100644
--- a/default_app/index.html
+++ b/default_app/index.html
@@ -4,16 +4,21 @@
   <style>
     body {
       color: #205161;
-      background-color: #fff;
       font-family: Roboto, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", "Oxygen", "Ubuntu", "Cantarell", "Open Sans", sans-serif;
-      font-style: normal;
-      font-variant: normal;
-      padding: 0;
       margin: 0;
+      display: flex;
+      flex-direction: column;
     }
 
     .container {
-      padding: 15px 30px;
+      margin: 15px 30px 30px 30px;
+      flex: 1;
+      display: flex;
+      flex-direction: column;
+    }
+
+    .container > * {
+      margin: 15px 0 0 0;
     }
 
     .header {
@@ -21,7 +26,6 @@
       border-bottom: 1px solid #1a1b23;
       color: #9feaf9;
       padding: 15px 30px;
-      margin: 0;
     }
 
     .header a,
@@ -90,18 +94,15 @@
 
     #holder {
       display: flex;
+      flex: 1;
       align-items: center;
       justify-content: center;
-      margin: 0 auto;
-      padding: 10px;
-      height: 275px;
       border: 1px solid #e0e5e6;
       background-color: #f6f8f8;
       color: #466a72;
       border-radius: 3px;
       font-size: 30px;
       font-weight: 300;
-      text-align: center;
       cursor: default;
       -webkit-user-select: none;
     }
@@ -130,7 +131,7 @@
     };
   </script>
 
-  <header class="header">
+  <div class="header">
     <svg class="header-icon" viewBox="0 0 32 32" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
       <g stroke="none" fill="none" fill-rule="evenodd">
         <path class="svg-stroke" d="M11.7014354,7.72646259 C7.91761319,7.04380371 4.81334929,7.69369948 3.61536899,9.74908711 C2.72656361,11.27402 3.03878853,13.3122813 4.27551338,15.4489979 M6.32642733,18.1886712 C7.89193828,19.8928217 9.9666792,21.548102 12.4120986,22.9466461 C18.2414315,26.2804624 24.2930499,27.0779063 27.1669222,25.1368228 M29.8456419,24.0565148 C29.8456419,23.1971812 29.1423799,22.5005537 28.2748621,22.5005537 C27.4073444,22.5005537 26.7040823,23.1971812 26.7040823,24.0565148 C26.7040823,24.9158484 27.4073444,25.612476 28.2748621,25.612476 C29.1423799,25.612476 29.8456419,24.9158484 29.8456419,24.0565148 L29.8456419,24.0565148 Z"></path>
@@ -152,7 +153,7 @@
       <a href="https://github.com/electron/electron">Repository</a>
       <a href="http://electron.atom.io/blog">Blog</a>
     </div>
-  </header>
+  </div>
 
   <div class="container">
 
diff --git a/docs/api/auto-updater.md b/docs/api/auto-updater.md
index 211d0c69a5f3..66ddbca96560 100644
--- a/docs/api/auto-updater.md
+++ b/docs/api/auto-updater.md
@@ -30,8 +30,9 @@ This is a requirement of `Squirrel.Mac`.
 ### Windows
 
 On Windows, you have to install your app into a user's machine before you can
-use the auto-updater, so it is recommended to use
-[grunt-electron-installer][installer] module to generate a Windows installer.
+use the `autoUpdater`, so it is recommended that you use the
+[electron-winstaller][installer-lib] module or the [grunt-electron-installer][installer]
+package to generate a Windows installer.
 
 The installer generated with Squirrel will create a shortcut icon with an
 [Application User Model ID][app-user-model-id] in the format of
@@ -111,7 +112,8 @@ should only be called after `update-downloaded` has been emitted.
 [squirrel-mac]: https://github.com/Squirrel/Squirrel.Mac
 [server-support]: https://github.com/Squirrel/Squirrel.Mac#server-support
 [squirrel-windows]: https://github.com/Squirrel/Squirrel.Windows
-[installer]: https://github.com/atom/grunt-electron-installer
+[installer]: https://github.com/electron/grunt-electron-installer
+[installer-lib]: https://github.com/electron/windows-installer
 [app-user-model-id]: https://msdn.microsoft.com/en-us/library/windows/desktop/dd378459(v=vs.85).aspx
 [electron-release-server]: https://github.com/ArekSredzki/electron-release-server
 [squirrel-updates-server]: https://github.com/Aluxian/squirrel-updates-server
diff --git a/docs/api/crash-reporter.md b/docs/api/crash-reporter.md
index 6575bbea7656..1a07ac31d418 100644
--- a/docs/api/crash-reporter.md
+++ b/docs/api/crash-reporter.md
@@ -20,7 +20,7 @@ For setting up a server to accept and process crash reports, you can use
 following projects:
 
 * [socorro](https://github.com/mozilla/socorro)
-* [mini-breakpad-server](https://github.com/atom/mini-breakpad-server)
+* [mini-breakpad-server](https://github.com/electron/mini-breakpad-server)
 
 ## Methods
 
diff --git a/docs/api/environment-variables.md b/docs/api/environment-variables.md
index 7339661b09fe..e01afff5fa76 100644
--- a/docs/api/environment-variables.md
+++ b/docs/api/environment-variables.md
@@ -52,7 +52,3 @@ Don't attach to current console session.
 ## `ELECTRON_FORCE_WINDOW_MENU_BAR` _Linux_
 
 Don't use global menu bar on Linux.
-
-## `ELECTRON_HIDE_INTERNAL_MODULES`
-
-Turns off compatibility mode for old built-in modules like `require('ipc')`.
diff --git a/docs/api/synopsis.md b/docs/api/synopsis.md
index abce9046d0ce..8ed43b04ebf6 100644
--- a/docs/api/synopsis.md
+++ b/docs/api/synopsis.md
@@ -72,25 +72,6 @@ const app = electron.app;
 const BrowserWindow = electron.BrowserWindow;
 ```
 
-## Disable old styles of using built-in modules
-
-Before v0.35.0, all built-in modules have to be used in the form of
-`require('module-name')`, though it has [many disadvantages][issue-387], we are
-still supporting it for compatibility with old apps.
-
-To disable the old styles completely, you can set the
-`ELECTRON_HIDE_INTERNAL_MODULES` environment variable:
-
-```javascript
-process.env.ELECTRON_HIDE_INTERNAL_MODULES = 'true'
-```
-
-Or call the `hideInternalModules` API:
-
-```javascript
-require('electron').hideInternalModules();
-```
-
 [gui]: https://en.wikipedia.org/wiki/Graphical_user_interface
 [destructuring-assignment]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment
 [issue-387]: https://github.com/electron/electron/issues/387
diff --git a/docs/development/source-code-directory-structure.md b/docs/development/source-code-directory-structure.md
index 27cf36b9d4e7..9e3cfee0b031 100644
--- a/docs/development/source-code-directory-structure.md
+++ b/docs/development/source-code-directory-structure.md
@@ -66,7 +66,7 @@ Electron
 ## Keeping Git Submodules Up to Date
 
 The Electron repository has a few vendored dependencies, found in the
-[/vendor](/vendor) directory. Occasionally you might see a message like this
+[/vendor][vendor] directory. Occasionally you might see a message like this
 when running `git status`:
 
 ```sh
@@ -89,3 +89,5 @@ in your `~/.gitconfig` file:
 [alias]
 	su = submodule update --init --recursive
 ```
+
+[vendor]: https://github.com/electron/electron/tree/master/vendor
diff --git a/docs/tutorial/application-distribution.md b/docs/tutorial/application-distribution.md
index 313c924e881c..a5d0f3797c83 100644
--- a/docs/tutorial/application-distribution.md
+++ b/docs/tutorial/application-distribution.md
@@ -30,7 +30,7 @@ your distribution to deliver to final users.
 ## Packaging Your App into a File
 
 Apart from shipping your app by copying all of its source files, you can also
-package your app into an [asar](https://github.com/atom/asar) archive to avoid
+package your app into an [asar](https://github.com/electron/asar) archive to avoid
 exposing your app's source code to users.
 
 To use an `asar` archive to replace the `app` folder, you need to rename the
diff --git a/docs/tutorial/application-packaging.md b/docs/tutorial/application-packaging.md
index de61e8bd5e97..8a7f8701610f 100644
--- a/docs/tutorial/application-packaging.md
+++ b/docs/tutorial/application-packaging.md
@@ -181,4 +181,4 @@ After running the command, apart from the `app.asar`, there is also an
 `app.asar.unpacked` folder generated which contains the unpacked files, you
 should copy it together with `app.asar` when shipping it to users.
 
-[asar]: https://github.com/atom/asar
+[asar]: https://github.com/electron/asar
diff --git a/electron.gyp b/electron.gyp
index 66ff2fd5baf8..651fc9119e5f 100644
--- a/electron.gyp
+++ b/electron.gyp
@@ -4,7 +4,7 @@
     'product_name%': 'Electron',
     'company_name%': 'GitHub, Inc',
     'company_abbr%': 'github',
-    'version%': '0.37.8',
+    'version%': '1.0.0',
   },
   'includes': [
     'filenames.gypi',
diff --git a/filenames.gypi b/filenames.gypi
index 8e0c858dfc84..e4321bccc186 100644
--- a/filenames.gypi
+++ b/filenames.gypi
@@ -18,7 +18,6 @@
       'lib/browser/api/dialog.js',
       'lib/browser/api/exports/electron.js',
       'lib/browser/api/global-shortcut.js',
-      'lib/browser/api/ipc.js',
       'lib/browser/api/ipc-main.js',
       'lib/browser/api/menu.js',
       'lib/browser/api/menu-item.js',
@@ -58,7 +57,6 @@
       'lib/renderer/web-view/web-view-constants.js',
       'lib/renderer/api/desktop-capturer.js',
       'lib/renderer/api/exports/electron.js',
-      'lib/renderer/api/ipc.js',
       'lib/renderer/api/ipc-renderer.js',
       'lib/renderer/api/remote.js',
       'lib/renderer/api/screen.js',
diff --git a/lib/browser/api/app.js b/lib/browser/api/app.js
index 0487270ce7b3..6ddac05efa99 100644
--- a/lib/browser/api/app.js
+++ b/lib/browser/api/app.js
@@ -1,7 +1,6 @@
 'use strict'
 
-const electron = require('electron')
-const {deprecate, session, Menu} = electron
+const {Menu} = require('electron')
 const EventEmitter = require('events').EventEmitter
 
 const bindings = process.atomBinding('app')
@@ -63,61 +62,10 @@ for (i = 0, len = ref1.length; i < len; i++) {
   fn(ref1[i])
 }
 
-// Deprecated.
-app.getHomeDir = deprecate('app.getHomeDir', 'app.getPath', function () {
-  return this.getPath('home')
-})
-app.getDataPath = deprecate('app.getDataPath', 'app.getPath', function () {
-  return this.getPath('userData')
-})
-app.setDataPath = deprecate('app.setDataPath', 'app.setPath', function (path) {
-  return this.setPath('userData', path)
-})
-app.resolveProxy = deprecate('app.resolveProxy', 'session.defaultSession.resolveProxy', function (url, callback) {
-  return session.defaultSession.resolveProxy(url, callback)
-})
-deprecate.rename(app, 'terminate', 'quit')
-deprecate.event(app, 'finish-launching', 'ready', function () {
-  // give default app a chance to setup default menu.
-  setImmediate(() => {
-    this.emit('finish-launching')
-  })
-})
-deprecate.event(app, 'activate-with-no-open-windows', 'activate', function (event, hasVisibleWindows) {
-  if (!hasVisibleWindows) {
-    return this.emit('activate-with-no-open-windows', event)
-  }
-})
-deprecate.event(app, 'select-certificate', 'select-client-certificate')
-if (process.platform === 'win32') {
-  app.isAeroGlassEnabled = deprecate('app.isAeroGlassEnabled', 'systemPreferences.isAeroGlassEnabled', function () {
-    return electron.systemPreferences.isAeroGlassEnabled()
-  })
-} else if (process.platform === 'darwin') {
-  app.isDarkMode = deprecate('app.isDarkMode', 'systemPreferences.isDarkMode', function () {
-    return electron.systemPreferences.isDarkMode()
-  })
-  app.on = app.addListener = function (event, listener) {
-    if (event === 'platform-theme-changed') {
-      deprecate.warn('platform-theme-changed event', "systemPreferences.subscribeNotification('AppleInterfaceThemeChangedNotification', callback)")
-      electron.systemPreferences.subscribeNotification('AppleInterfaceThemeChangedNotification', function () {
-        app.emit('platform-theme-changed')
-      })
-    }
-    EventEmitter.prototype.addListener.call(app, event, listener)
-  }
-}
-
 // Wrappers for native classes.
 var wrapDownloadItem = function (downloadItem) {
   // downloadItem is an EventEmitter.
   Object.setPrototypeOf(downloadItem, EventEmitter.prototype)
-
-  // Deprecated.
-  deprecate.property(downloadItem, 'url', 'getURL')
-  deprecate.property(downloadItem, 'filename', 'getFilename')
-  deprecate.property(downloadItem, 'mimeType', 'getMimeType')
-  return deprecate.rename(downloadItem, 'getUrl', 'getURL')
 }
 
 downloadItemBindings._setWrapDownloadItem(wrapDownloadItem)
diff --git a/lib/browser/api/auto-updater.js b/lib/browser/api/auto-updater.js
index 2b5133070f41..f838a26f2cea 100644
--- a/lib/browser/api/auto-updater.js
+++ b/lib/browser/api/auto-updater.js
@@ -1,7 +1,5 @@
-const deprecate = require('electron').deprecate
-const autoUpdater = process.platform === 'win32' ? require('./auto-updater/auto-updater-win') : require('./auto-updater/auto-updater-native')
-
-// Deprecated.
-deprecate.rename(autoUpdater, 'setFeedUrl', 'setFeedURL')
-
-module.exports = autoUpdater
+if (process.platform === 'win32') {
+  module.exports = require('./auto-updater/auto-updater-win')
+} else {
+  module.exports = require('./auto-updater/auto-updater-native')
+}
diff --git a/lib/browser/api/browser-window.js b/lib/browser/api/browser-window.js
index c9d63278f974..1cfd84bebc56 100644
--- a/lib/browser/api/browser-window.js
+++ b/lib/browser/api/browser-window.js
@@ -1,9 +1,8 @@
 'use strict'
 
 const ipcMain = require('electron').ipcMain
-const deprecate = require('electron').deprecate
 const EventEmitter = require('events').EventEmitter
-const {BrowserWindow, _setDeprecatedOptionsCheck} = process.atomBinding('window')
+const {BrowserWindow} = process.atomBinding('window')
 
 Object.setPrototypeOf(BrowserWindow.prototype, EventEmitter.prototype)
 
@@ -44,11 +43,6 @@ BrowserWindow.prototype._init = function () {
     }
   })
 
-  // Forward the crashed event.
-  this.webContents.on('crashed', () => {
-    this.emit('crashed')
-  })
-
   // Change window title to page title.
   this.webContents.on('page-title-updated', (event, title) => {
     // The page-title-updated event is not emitted immediately (see #3645), so
@@ -96,17 +90,6 @@ BrowserWindow.prototype._init = function () {
   // Notify the creation of the window.
   app.emit('browser-window-created', {}, this)
 
-  // Be compatible with old APIs.
-  this.webContents.on('devtools-focused', () => {
-    this.emit('devtools-focused')
-  })
-  this.webContents.on('devtools-opened', () => {
-    this.emit('devtools-opened')
-  })
-  this.webContents.on('devtools-closed', () => {
-    this.emit('devtools-closed')
-  })
-
   Object.defineProperty(this, 'devToolsWebContents', {
     enumerable: true,
     configurable: false,
@@ -196,84 +179,4 @@ BrowserWindow.prototype.inspectServiceWorker = function () {
   return this.webContents.inspectServiceWorker()
 }
 
-// Deprecated.
-deprecate.member(BrowserWindow, 'undo', 'webContents')
-deprecate.member(BrowserWindow, 'redo', 'webContents')
-deprecate.member(BrowserWindow, 'cut', 'webContents')
-deprecate.member(BrowserWindow, 'copy', 'webContents')
-deprecate.member(BrowserWindow, 'paste', 'webContents')
-deprecate.member(BrowserWindow, 'selectAll', 'webContents')
-deprecate.member(BrowserWindow, 'reloadIgnoringCache', 'webContents')
-deprecate.member(BrowserWindow, 'isLoading', 'webContents')
-deprecate.member(BrowserWindow, 'isWaitingForResponse', 'webContents')
-deprecate.member(BrowserWindow, 'stop', 'webContents')
-deprecate.member(BrowserWindow, 'isCrashed', 'webContents')
-deprecate.member(BrowserWindow, 'print', 'webContents')
-deprecate.member(BrowserWindow, 'printToPDF', 'webContents')
-deprecate.rename(BrowserWindow, 'restart', 'reload')
-deprecate.rename(BrowserWindow, 'loadUrl', 'loadURL')
-deprecate.rename(BrowserWindow, 'getUrl', 'getURL')
-
-BrowserWindow.prototype.executeJavaScriptInDevTools = deprecate('executeJavaScriptInDevTools', 'devToolsWebContents.executeJavaScript', function (code) {
-  var ref1
-  return (ref1 = this.devToolsWebContents) != null ? ref1.executeJavaScript(code) : void 0
-})
-
-BrowserWindow.prototype.getPageTitle = deprecate('getPageTitle', 'webContents.getTitle', function () {
-  var ref1
-  return (ref1 = this.webContents) != null ? ref1.getTitle() : void 0
-})
-
-const isDeprecatedKey = function (key) {
-  return key.indexOf('-') >= 0
-}
-
-// Map deprecated key with hyphens to camel case key
-const getNonDeprecatedKey = function (deprecatedKey) {
-  return deprecatedKey.replace(/-./g, function (match) {
-    return match[1].toUpperCase()
-  })
-}
-
-// TODO Remove for 1.0
-const checkForDeprecatedOptions = function (options) {
-  if (!options) return ''
-
-  let keysToCheck = Object.keys(options)
-  if (options.webPreferences) {
-    keysToCheck = keysToCheck.concat(Object.keys(options.webPreferences))
-  }
-
-  // Check options for keys with hyphens in them
-  let deprecatedKey = keysToCheck.filter(isDeprecatedKey)[0]
-  if (deprecatedKey) {
-    try {
-      deprecate.warn(deprecatedKey, getNonDeprecatedKey(deprecatedKey))
-    } catch (error) {
-      // Return error message so it can be rethrown via C++
-      return error.message
-    }
-  }
-
-  let webPreferenceOption
-  if (options.hasOwnProperty('nodeIntegration')) {
-    webPreferenceOption = 'nodeIntegration'
-  } else if (options.hasOwnProperty('preload')) {
-    webPreferenceOption = 'preload'
-  } else if (options.hasOwnProperty('zoomFactor')) {
-    webPreferenceOption = 'zoomFactor'
-  }
-  if (webPreferenceOption) {
-    try {
-      deprecate.warn(`options.${webPreferenceOption}`, `options.webPreferences.${webPreferenceOption}`)
-    } catch (error) {
-      // Return error message so it can be rethrown via C++
-      return error.message
-    }
-  }
-
-  return ''
-}
-_setDeprecatedOptionsCheck(checkForDeprecatedOptions)
-
 module.exports = BrowserWindow
diff --git a/lib/browser/api/ipc.js b/lib/browser/api/ipc.js
deleted file mode 100644
index cdba49c82485..000000000000
--- a/lib/browser/api/ipc.js
+++ /dev/null
@@ -1,7 +0,0 @@
-const deprecate = require('electron').deprecate
-const ipcMain = require('electron').ipcMain
-
-// This module is deprecated, we mirror everything from ipcMain.
-deprecate.warn('ipc module', 'require("electron").ipcMain')
-
-module.exports = ipcMain
diff --git a/lib/browser/api/session.js b/lib/browser/api/session.js
index 47e00bd0462f..9c42f3645603 100644
--- a/lib/browser/api/session.js
+++ b/lib/browser/api/session.js
@@ -1,4 +1,3 @@
-const EventEmitter = require('events').EventEmitter
 const bindings = process.atomBinding('session')
 const PERSIST_PREFIX = 'persist:'
 
@@ -24,10 +23,3 @@ Object.defineProperty(exports, 'defaultSession', {
     return bindings.fromPartition('', false)
   }
 })
-
-var wrapSession = function (session) {
-  // session is an EventEmitter.
-  Object.setPrototypeOf(session, EventEmitter.prototype)
-}
-
-bindings._setWrapSession(wrapSession)
diff --git a/lib/browser/api/tray.js b/lib/browser/api/tray.js
index ce67dbe117a2..729e430ee3fd 100644
--- a/lib/browser/api/tray.js
+++ b/lib/browser/api/tray.js
@@ -1,18 +1,8 @@
-const deprecate = require('electron').deprecate
 const EventEmitter = require('events').EventEmitter
 const Tray = process.atomBinding('tray').Tray
 
 Object.setPrototypeOf(Tray.prototype, EventEmitter.prototype)
 
-Tray.prototype._init = function () {
-  // Deprecated.
-  deprecate.rename(this, 'popContextMenu', 'popUpContextMenu')
-  deprecate.event(this, 'clicked', 'click')
-  deprecate.event(this, 'double-clicked', 'double-click')
-  deprecate.event(this, 'right-clicked', 'right-click')
-  return deprecate.event(this, 'balloon-clicked', 'balloon-click')
-}
-
 Tray.prototype.setContextMenu = function (menu) {
   this._setContextMenu(menu)
 
diff --git a/lib/browser/api/web-contents.js b/lib/browser/api/web-contents.js
index 823351ebe116..c706954b64bd 100644
--- a/lib/browser/api/web-contents.js
+++ b/lib/browser/api/web-contents.js
@@ -1,13 +1,13 @@
 'use strict'
 
 const EventEmitter = require('events').EventEmitter
-const deprecate = require('electron').deprecate
 const ipcMain = require('electron').ipcMain
 const NavigationController = require('electron').NavigationController
 const Menu = require('electron').Menu
 
 const binding = process.atomBinding('web_contents')
 const debuggerBinding = process.atomBinding('debugger')
+const sessionBinding = process.atomBinding('session')
 
 let nextId = 0
 
@@ -160,13 +160,6 @@ let wrapWebContents = function (webContents) {
     })
   })
 
-  // Deprecated.
-  deprecate.rename(webContents, 'loadUrl', 'loadURL')
-  deprecate.rename(webContents, 'getUrl', 'getURL')
-  deprecate.event(webContents, 'page-title-set', 'page-title-updated', function (...args) {
-    return this.emit.apply(this, ['page-title-set'].concat(args))
-  })
-
   webContents.printToPDF = function (options, callback) {
     var printingSetting
     printingSetting = {
@@ -219,8 +212,14 @@ let wrapDebugger = function (webContentsDebugger) {
   Object.setPrototypeOf(webContentsDebugger, EventEmitter.prototype)
 }
 
+var wrapSession = function (session) {
+  // session is an EventEmitter.
+  Object.setPrototypeOf(session, EventEmitter.prototype)
+}
+
 binding._setWrapWebContents(wrapWebContents)
 debuggerBinding._setWrapDebugger(wrapDebugger)
+sessionBinding._setWrapSession(wrapSession)
 
 module.exports.create = function (options) {
   if (options == null) {
diff --git a/lib/browser/desktop-capturer.js b/lib/browser/desktop-capturer.js
index 5e8ad3e7328c..21993a9fd71d 100644
--- a/lib/browser/desktop-capturer.js
+++ b/lib/browser/desktop-capturer.js
@@ -45,7 +45,7 @@ desktopCapturer.emit = function (event, name, sources) {
       results.push({
         id: source.id,
         name: source.name,
-        thumbnail: source.thumbnail.toDataUrl()
+        thumbnail: source.thumbnail.toDataURL()
       })
     }
     return results
diff --git a/lib/browser/init.js b/lib/browser/init.js
index fc4f90c399ba..df670ece7100 100644
--- a/lib/browser/init.js
+++ b/lib/browser/init.js
@@ -18,10 +18,6 @@ require('../common/init')
 
 var globalPaths = Module.globalPaths
 
-if (!process.env.ELECTRON_HIDE_INTERNAL_MODULES) {
-  globalPaths.push(path.join(__dirname, 'api'))
-}
-
 // Expose public APIs.
 globalPaths.push(path.join(__dirname, 'api', 'exports'))
 
diff --git a/lib/common/api/crash-reporter.js b/lib/common/api/crash-reporter.js
index f10887550113..21e352e7e510 100644
--- a/lib/common/api/crash-reporter.js
+++ b/lib/common/api/crash-reporter.js
@@ -10,7 +10,7 @@ var CrashReporter = (function () {
   function CrashReporter () {}
 
   CrashReporter.prototype.start = function (options) {
-    var app, args, autoSubmit, companyName, deprecate, env, extra, ignoreSystemCrashHandler, start, submitURL
+    var app, args, autoSubmit, companyName, env, extra, ignoreSystemCrashHandler, start, submitURL
     if (options == null) {
       options = {}
     }
@@ -21,14 +21,6 @@ var CrashReporter = (function () {
     ignoreSystemCrashHandler = options.ignoreSystemCrashHandler
     extra = options.extra
 
-    // Deprecated.
-    deprecate = electron.deprecate
-    if (options.submitUrl) {
-      if (submitURL == null) {
-        submitURL = options.submitUrl
-      }
-      deprecate.warn('submitUrl', 'submitURL')
-    }
     app = (process.type === 'browser' ? electron : electron.remote).app
     if (this.productName == null) {
       this.productName = app.getName()
@@ -52,12 +44,10 @@ var CrashReporter = (function () {
       extra._version = app.getVersion()
     }
     if (companyName == null) {
-      deprecate.log('companyName is now a required option to crashReporter.start')
-      return
+      throw new Error('companyName is a required option to crashReporter.start')
     }
     if (submitURL == null) {
-      deprecate.log('submitURL is now a required option to crashReporter.start')
-      return
+      throw new Error('submitURL is a required option to crashReporter.start')
     }
     start = () => {
       binding.start(this.productName, companyName, submitURL, autoSubmit, ignoreSystemCrashHandler, extra)
diff --git a/lib/common/api/exports/electron.js b/lib/common/api/exports/electron.js
index 3bef1f0c50f6..1e9c2d71f3b7 100644
--- a/lib/common/api/exports/electron.js
+++ b/lib/common/api/exports/electron.js
@@ -1,20 +1,6 @@
-// Do not expose the internal modules to `require`.
-const hideInternalModules = function () {
-  var globalPaths = require('module').globalPaths
-  if (globalPaths.length === 3) {
-    // Remove the "common/api/lib" and "browser-or-renderer/api/lib".
-    return globalPaths.splice(0, 2)
-  }
-}
-
 // Attaches properties to |exports|.
 exports.defineProperties = function (exports) {
   return Object.defineProperties(exports, {
-    hideInternalModules: {
-      enumerable: true,
-      value: hideInternalModules
-    },
-
     // Common modules, please sort with alphabet order.
     clipboard: {
       // Must be enumerable, otherwise it woulde be invisible to remote module.
@@ -29,12 +15,6 @@ exports.defineProperties = function (exports) {
         return require('../crash-reporter')
       }
     },
-    deprecations: {
-      enumerable: true,
-      get: function () {
-        return require('../deprecations')
-      }
-    },
     nativeImage: {
       enumerable: true,
       get: function () {
@@ -58,6 +38,11 @@ exports.defineProperties = function (exports) {
       get: function () {
         return require('../deprecate')
       }
+    },
+    deprecations: {
+      get: function () {
+        return require('../deprecations')
+      }
     }
   })
 }
diff --git a/lib/common/api/native-image.js b/lib/common/api/native-image.js
index ebb06138210e..614298f51a0e 100644
--- a/lib/common/api/native-image.js
+++ b/lib/common/api/native-image.js
@@ -1,7 +1 @@
-const deprecate = require('electron').deprecate
-const nativeImage = process.atomBinding('native_image')
-
-// Deprecated.
-deprecate.rename(nativeImage, 'createFromDataUrl', 'createFromDataURL')
-
-module.exports = nativeImage
+module.exports = process.atomBinding('native_image')
diff --git a/lib/common/init.js b/lib/common/init.js
index 11c098d3ce5c..257249f0a639 100644
--- a/lib/common/init.js
+++ b/lib/common/init.js
@@ -1,6 +1,4 @@
-const path = require('path')
 const timers = require('timers')
-const Module = require('module')
 
 process.atomBinding = function (name) {
   try {
@@ -12,11 +10,6 @@ process.atomBinding = function (name) {
   }
 }
 
-if (!process.env.ELECTRON_HIDE_INTERNAL_MODULES) {
-  // Add common/api/lib to module search paths.
-  Module.globalPaths.push(path.join(__dirname, 'api'))
-}
-
 // setImmediate and process.nextTick makes use of uv_check and uv_prepare to
 // run the callbacks, however since we only run uv loop on requests, the
 // callbacks wouldn't be called until something else activated the uv loop,
diff --git a/lib/renderer/api/ipc.js b/lib/renderer/api/ipc.js
deleted file mode 100644
index 25519a308daf..000000000000
--- a/lib/renderer/api/ipc.js
+++ /dev/null
@@ -1,27 +0,0 @@
-const ipcRenderer = require('electron').ipcRenderer
-const deprecate = require('electron').deprecate
-const EventEmitter = require('events').EventEmitter
-
-// This module is deprecated, we mirror everything from ipcRenderer.
-deprecate.warn('ipc module', 'require("electron").ipcRenderer')
-
-// Routes events of ipcRenderer.
-var ipc = new EventEmitter()
-
-ipcRenderer.emit = function (channel, event, ...args) {
-  ipc.emit.apply(ipc, [channel].concat(args))
-  return EventEmitter.prototype.emit.apply(ipcRenderer, arguments)
-}
-
-// Deprecated.
-for (var method in ipcRenderer) {
-  if (method.startsWith('send')) {
-    ipc[method] = ipcRenderer[method]
-  }
-}
-
-deprecate.rename(ipc, 'sendChannel', 'send')
-
-deprecate.rename(ipc, 'sendChannelSync', 'sendSync')
-
-module.exports = ipc
diff --git a/lib/renderer/api/web-frame.js b/lib/renderer/api/web-frame.js
index 4a152d4f3646..81855c391f8f 100644
--- a/lib/renderer/api/web-frame.js
+++ b/lib/renderer/api/web-frame.js
@@ -1,6 +1,5 @@
 'use strict'
 
-const deprecate = require('electron').deprecate
 const EventEmitter = require('events').EventEmitter
 
 const webFrame = process.atomBinding('web_frame').webFrame
@@ -11,9 +10,4 @@ Object.setPrototypeOf(webFrame, EventEmitter.prototype)
 // Lots of webview would subscribe to webFrame's events.
 webFrame.setMaxListeners(0)
 
-// Deprecated.
-deprecate.rename(webFrame, 'registerUrlSchemeAsSecure', 'registerURLSchemeAsSecure')
-deprecate.rename(webFrame, 'registerUrlSchemeAsBypassingCSP', 'registerURLSchemeAsBypassingCSP')
-deprecate.rename(webFrame, 'registerUrlSchemeAsPrivileged', 'registerURLSchemeAsPrivileged')
-
 module.exports = webFrame
diff --git a/lib/renderer/init.js b/lib/renderer/init.js
index a9f4acc5cbfe..fadf95256865 100644
--- a/lib/renderer/init.js
+++ b/lib/renderer/init.js
@@ -16,10 +16,6 @@ require('../common/init')
 
 var globalPaths = Module.globalPaths
 
-if (!process.env.ELECTRON_HIDE_INTERNAL_MODULES) {
-  globalPaths.push(path.join(__dirname, 'api'))
-}
-
 // Expose public APIs.
 globalPaths.push(path.join(__dirname, 'api', 'exports'))
 
diff --git a/lib/renderer/override.js b/lib/renderer/override.js
index db56eadd3484..bb09a9981dce 100644
--- a/lib/renderer/override.js
+++ b/lib/renderer/override.js
@@ -85,9 +85,8 @@ window.open = function (url, frameName, features) {
   }
   options = {}
 
-  // TODO remove hyphenated options in both of the following arrays for 1.0
-  const ints = ['x', 'y', 'width', 'height', 'min-width', 'minWidth', 'max-width', 'maxWidth', 'min-height', 'minHeight', 'max-height', 'maxHeight', 'zoom-factor', 'zoomFactor']
-  const webPreferences = ['zoom-factor', 'zoomFactor', 'node-integration', 'nodeIntegration', 'preload']
+  const ints = ['x', 'y', 'width', 'height', 'minWidth', 'maxWidth', 'minHeight', 'maxHeight', 'zoomFactor']
+  const webPreferences = ['zoomFactor', 'nodeIntegration', 'preload']
   const disposition = 'new-window'
 
   // Make sure to get rid of excessive whitespace in the property name
diff --git a/lib/renderer/web-view/web-view.js b/lib/renderer/web-view/web-view.js
index 20f5f07465b5..bfe5197295c0 100644
--- a/lib/renderer/web-view/web-view.js
+++ b/lib/renderer/web-view/web-view.js
@@ -1,6 +1,5 @@
 'use strict'
 
-const deprecate = require('electron').deprecate
 const webFrame = require('electron').webFrame
 const remote = require('electron').remote
 const ipcRenderer = require('electron').ipcRenderer
@@ -432,8 +431,6 @@ var registerWebViewElement = function () {
     return internal.webContents
   }
 
-  // Deprecated.
-  deprecate.rename(proto, 'getUrl', 'getURL')
   window.WebView = webFrame.registerEmbedderCustomElement('webview', {
     prototype: proto
   })
diff --git a/package.json b/package.json
index 7d40098f099a..fba4b8befe21 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "electron",
-  "version": "0.37.8",
+  "version": "1.0.0",
   "devDependencies": {
     "asar": "^0.11.0",
     "request": "*",
diff --git a/spec/api-app-spec.js b/spec/api-app-spec.js
index 8afa90bb9f96..c0469cc3f68f 100644
--- a/spec/api-app-spec.js
+++ b/spec/api-app-spec.js
@@ -10,21 +10,10 @@ const BrowserWindow = remote.require('electron').BrowserWindow
 const isCI = remote.getGlobal('isCi')
 
 describe('electron module', function () {
-  it('allows old style require by default', function () {
-    require('shell')
-  })
-
-  it('can prevent exposing internal modules to require', function (done) {
-    const electron = require('electron')
-    const clipboard = require('clipboard')
-    assert.equal(typeof clipboard, 'object')
-    electron.hideInternalModules()
-    try {
+  it('does not expose internal modules to require', function () {
+    assert.throws(function () {
       require('clipboard')
-    } catch (err) {
-      assert.equal(err.message, "Cannot find module 'clipboard'")
-      done()
-    }
+    }, /Cannot find module 'clipboard'/)
   })
 })
 
diff --git a/spec/api-browser-window-spec.js b/spec/api-browser-window-spec.js
index e76821020bdc..a8dd8a3780cc 100644
--- a/spec/api-browser-window-spec.js
+++ b/spec/api-browser-window-spec.js
@@ -880,24 +880,4 @@ describe('browser-window module', function () {
       w.loadURL(server.url)
     })
   })
-
-  describe('deprecated options', function () {
-    it('throws a deprecation error for option keys using hyphens instead of camel case', function () {
-      assert.throws(function () {
-        return new BrowserWindow({'min-width': 500})
-      }, 'min-width is deprecated. Use minWidth instead.')
-    })
-
-    it('throws a deprecation error for webPreference keys using hyphens instead of camel case', function () {
-      assert.throws(function () {
-        return new BrowserWindow({webPreferences: {'node-integration': false}})
-      }, 'node-integration is deprecated. Use nodeIntegration instead.')
-    })
-
-    it('throws a deprecation error for option keys that should be set on webPreferences', function () {
-      assert.throws(function () {
-        return new BrowserWindow({zoomFactor: 1})
-      }, 'options.zoomFactor is deprecated. Use options.webPreferences.zoomFactor instead.')
-    })
-  })
 })
diff --git a/spec/api-crash-reporter-spec.js b/spec/api-crash-reporter-spec.js
index e5a3223eed8f..b4f63fe1ef27 100644
--- a/spec/api-crash-reporter-spec.js
+++ b/spec/api-crash-reporter-spec.js
@@ -81,12 +81,12 @@ describe('crash-reporter module', function () {
         crashReporter.start({
           companyName: 'Missing submitURL'
         })
-      })
+      }, /submitURL is a required option to crashReporter\.start/)
       assert.throws(function () {
         crashReporter.start({
           submitURL: 'Missing companyName'
         })
-      })
+      }, /companyName is a required option to crashReporter\.start/)
     })
   })
 })
diff --git a/spec/api-deprecations-spec.js b/spec/api-deprecations-spec.js
index 375de5895fee..5b618ac90165 100644
--- a/spec/api-deprecations-spec.js
+++ b/spec/api-deprecations-spec.js
@@ -14,14 +14,14 @@ describe('deprecations', function () {
       messages.push(message)
     })
 
-    require('electron').webFrame.registerUrlSchemeAsSecure('some-scheme')
+    require('electron').deprecate.log('this is deprecated')
 
-    assert.deepEqual(messages, ['registerUrlSchemeAsSecure is deprecated. Use registerURLSchemeAsSecure instead.'])
+    assert.deepEqual(messages, ['this is deprecated'])
   })
 
   it('throws an exception if no deprecation handler is specified', function () {
     assert.throws(function () {
-      require('electron').webFrame.registerUrlSchemeAsPrivileged('some-scheme')
-    }, 'registerUrlSchemeAsPrivileged is deprecated. Use registerURLSchemeAsPrivileged instead.')
+      require('electron').deprecate.log('this is deprecated')
+    }, /this is deprecated/)
   })
 })
diff --git a/spec/asar-spec.js b/spec/asar-spec.js
index a0cb7b4aabd2..f9c4e98ae8fa 100644
--- a/spec/asar-spec.js
+++ b/spec/asar-spec.js
@@ -17,7 +17,7 @@ describe('asar package', function () {
       it('does not leak fd', function () {
         var readCalls = 1
         while (readCalls <= 10000) {
-          fs.readFileSync(path.join(process.resourcesPath, 'electron.asar', 'renderer', 'api', 'ipc.js'))
+          fs.readFileSync(path.join(process.resourcesPath, 'electron.asar', 'renderer', 'api', 'ipc-renderer.js'))
           readCalls++
         }
       })