diff --git a/interface.d.ts b/interface.d.ts
index 881ee28f9..265b6bf2f 100644
--- a/interface.d.ts
+++ b/interface.d.ts
@@ -63,6 +63,10 @@ export interface IElectronAPI {
   kittycad: (access: string, args: any) => any
   listMachines: () => Promise<MachinesListing>
   getMachineApiIp: () => Promise<string | null>
+  onUpdateDownloaded: (
+    callback: (value: string) => void
+  ) => Electron.IpcRenderer
+  appRestart: () => void
 }
 
 declare global {
diff --git a/src/components/ActionButton.test.tsx b/src/components/ActionButton.test.tsx
new file mode 100644
index 000000000..fd649fa67
--- /dev/null
+++ b/src/components/ActionButton.test.tsx
@@ -0,0 +1,42 @@
+import { render, screen } from '@testing-library/react'
+import { describe, expect, it } from 'vitest'
+import { ActionButton } from './ActionButton'
+
+describe('ActionButton tests', () => {
+  it('ActionButton with no iconStart or iconEnd should have even left and right padding', () => {
+    render(<ActionButton Element="button">No icons</ActionButton>)
+    expect(screen.getByRole('button')).toHaveClass('px-2')
+  })
+
+  it('ActionButton with iconStart should have no padding on the left', () => {
+    render(
+      <ActionButton Element="button" iconStart={{ icon: 'trash' }}>
+        Start icon only
+      </ActionButton>
+    )
+    expect(screen.getByRole('button')).toHaveClass('pr-2')
+  })
+
+  it('ActionButton with iconEnd should have no padding on the right', () => {
+    render(
+      <ActionButton Element="button" iconEnd={{ icon: 'trash' }}>
+        End icon only
+      </ActionButton>
+    )
+    expect(screen.getByRole('button')).toHaveClass('pl-2')
+  })
+
+  it('ActionButton with both icons should have no padding on either side', () => {
+    render(
+      <ActionButton
+        Element="button"
+        iconStart={{ icon: 'trash' }}
+        iconEnd={{ icon: 'trash' }}
+      >
+        Both icons
+      </ActionButton>
+    )
+    expect(screen.getByRole('button')).not.toHaveClass('px-2')
+    expect(screen.getByRole('button')).toHaveClass('px-0')
+  })
+})
diff --git a/src/components/ActionButton.tsx b/src/components/ActionButton.tsx
index 287192f75..2905f8ae0 100644
--- a/src/components/ActionButton.tsx
+++ b/src/components/ActionButton.tsx
@@ -44,11 +44,11 @@ export const ActionButton = forwardRef((props: ActionButtonProps, ref) => {
   const classNames = `action-button p-0 m-0 group mono text-xs leading-none flex items-center gap-2 rounded-sm border-solid border border-chalkboard-30 hover:border-chalkboard-40 enabled:dark:border-chalkboard-70 dark:hover:border-chalkboard-60 dark:bg-chalkboard-90/50 text-chalkboard-100 dark:text-chalkboard-10 ${
     props.iconStart
       ? props.iconEnd
-        ? 'px-0'
-        : 'pr-2'
+        ? 'px-0' // No padding if both icons are present
+        : 'pr-2' // Padding on the right if only the start icon is present
       : props.iconEnd
-      ? 'px-2'
-      : 'pl-2'
+      ? 'pl-2' // Padding on the left if only the end icon is present
+      : 'px-2' // Padding on both sides if no icons are present
   } ${props.className ? props.className : ''}`
 
   switch (props.Element) {
diff --git a/src/components/ToastUpdate.tsx b/src/components/ToastUpdate.tsx
new file mode 100644
index 000000000..500edbfe0
--- /dev/null
+++ b/src/components/ToastUpdate.tsx
@@ -0,0 +1,64 @@
+import toast from 'react-hot-toast'
+import { ActionButton } from './ActionButton'
+import { openExternalBrowserIfDesktop } from 'lib/openWindow'
+
+export function ToastUpdate({
+  version,
+  onRestart,
+}: {
+  version: string
+  onRestart: () => void
+}) {
+  return (
+    <div className="inset-0 z-50 grid place-content-center rounded bg-chalkboard-110/50 shadow-md">
+      <div className="max-w-3xl min-w-[35rem] p-8 rounded bg-chalkboard-10 dark:bg-chalkboard-90">
+        <div className="my-4 flex items-baseline">
+          <span
+            className="px-3 py-1 text-xl rounded-full bg-primary text-chalkboard-10"
+            data-testid="update-version"
+          >
+            v{version}
+          </span>
+          <span className="ml-4 text-md text-bold">
+            A new update has downloaded and will be available next time you
+            start the app. You can view the release notes{' '}
+            <a
+              onClick={openExternalBrowserIfDesktop(
+                `https://github.com/KittyCAD/modeling-app/releases/tag/v${version}`
+              )}
+              href={`https://github.com/KittyCAD/modeling-app/releases/tag/v${version}`}
+              target="_blank"
+              rel="noreferrer"
+            >
+              here on GitHub.
+            </a>
+          </span>
+        </div>
+        <div className="flex justify-between gap-8">
+          <ActionButton
+            Element="button"
+            iconStart={{
+              icon: 'arrowRotateRight',
+            }}
+            name="Restart app now"
+            onClick={onRestart}
+          >
+            Restart app now
+          </ActionButton>
+          <ActionButton
+            Element="button"
+            iconStart={{
+              icon: 'checkmark',
+            }}
+            name="Got it"
+            onClick={() => {
+              toast.dismiss()
+            }}
+          >
+            Got it
+          </ActionButton>
+        </div>
+      </div>
+    </div>
+  )
+}
diff --git a/src/index.tsx b/src/index.tsx
index 2c1b80209..6e9b4f4a7 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -1,12 +1,13 @@
 import ReactDOM from 'react-dom/client'
 import './index.css'
 import reportWebVitals from './reportWebVitals'
-import { Toaster } from 'react-hot-toast'
+import toast, { Toaster } from 'react-hot-toast'
 import { Router } from './Router'
 import { HotkeysProvider } from 'react-hotkeys-hook'
 import ModalContainer from 'react-modal-promise'
 import { isDesktop } from 'lib/isDesktop'
 import { AppStreamProvider } from 'AppState'
+import { ToastUpdate } from 'components/ToastUpdate'
 
 // uncomment for xstate inspector
 // import { DEV } from 'env'
@@ -52,4 +53,17 @@ root.render(
 // or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
 reportWebVitals()
 
-isDesktop()
+isDesktop() &&
+  window.electron.onUpdateDownloaded((version: string) => {
+    const message = `A new update (${version}) was downloaded and will be available next time you open the app.`
+    console.log(message)
+    toast.custom(
+      ToastUpdate({
+        version,
+        onRestart: () => {
+          window.electron.appRestart()
+        },
+      }),
+      { duration: 30000 }
+    )
+  })
diff --git a/src/main.ts b/src/main.ts
index 9213458b9..c561910b0 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -251,18 +251,14 @@ export function getAutoUpdater(): AppUpdater {
   return autoUpdater
 }
 
-export async function checkForUpdates(autoUpdater: AppUpdater) {
-  // TODO: figure out how to get the update modal back
-  const result = await autoUpdater.checkForUpdatesAndNotify()
-  console.log(result)
-}
-
 app.on('ready', () => {
   const autoUpdater = getAutoUpdater()
-  checkForUpdates(autoUpdater).catch(reportRejection)
+  setTimeout(() => {
+    autoUpdater.checkForUpdates().catch(reportRejection)
+  }, 1000)
   const fifteenMinutes = 15 * 60 * 1000
   setInterval(() => {
-    checkForUpdates(autoUpdater).catch(reportRejection)
+    autoUpdater.checkForUpdates().catch(reportRejection)
   }, fifteenMinutes)
 
   autoUpdater.on('update-available', (info) => {
@@ -271,6 +267,11 @@ app.on('ready', () => {
 
   autoUpdater.on('update-downloaded', (info) => {
     console.log('update-downloaded', info)
+    mainWindow?.webContents.send('update-downloaded', info.version)
+  })
+
+  ipcMain.handle('app.restart', () => {
+    autoUpdater.quitAndInstall()
   })
 })
 
diff --git a/src/preload.ts b/src/preload.ts
index 6968df94d..2d5e3eec4 100644
--- a/src/preload.ts
+++ b/src/preload.ts
@@ -15,6 +15,9 @@ const startDeviceFlow = (host: string): Promise<string> =>
   ipcRenderer.invoke('startDeviceFlow', host)
 const loginWithDeviceFlow = (): Promise<string> =>
   ipcRenderer.invoke('loginWithDeviceFlow')
+const onUpdateDownloaded = (callback: (value: string) => void) =>
+  ipcRenderer.on('update-downloaded', (_event, value) => callback(value))
+const appRestart = () => ipcRenderer.invoke('app.restart')
 
 const isMac = os.platform() === 'darwin'
 const isWindows = os.platform() === 'win32'
@@ -123,4 +126,6 @@ contextBridge.exposeInMainWorld('electron', {
   kittycad,
   listMachines,
   getMachineApiIp,
+  onUpdateDownloaded,
+  appRestart,
 })