diff --git a/lib/shared/version-utils.js b/lib/shared/version-utils.js
--- a/lib/shared/version-utils.js
+++ b/lib/shared/version-utils.js
@@ -1,6 +1,10 @@
 // @flow
 
-import { type PlatformDetails, isWebPlatform } from '../types/device-types.js';
+import {
+  type PlatformDetails,
+  isWebPlatform,
+  isDesktopPlatform,
+} from '../types/device-types.js';
 
 /**
  * A code version used for features that are waiting to be released
@@ -16,16 +20,25 @@
 
 function hasMinCodeVersion(
   platformDetails: ?PlatformDetails,
-  minCodeVersion: $Shape<{ +native: number, +web: number }>,
+  minCodeVersion: $Shape<{
+    +native: number,
+    +web: number,
+    +majorDesktop: number,
+  }>,
 ): boolean {
   if (!platformDetails) {
     return true;
   }
-  const { codeVersion } = platformDetails;
+
+  const { codeVersion, majorDesktopVersion } = platformDetails;
   const minVersion = isWebPlatform(platformDetails.platform)
     ? minCodeVersion.web
     : minCodeVersion.native;
 
+  const minMajorDesktopVersion = isDesktopPlatform(platformDetails.platform)
+    ? minCodeVersion.majorDesktop
+    : undefined;
+
   if (!minVersion) {
     return true;
   }
@@ -33,6 +46,18 @@
     return false;
   }
 
+  if (!minMajorDesktopVersion) {
+    return true;
+  }
+
+  if (!majorDesktopVersion) {
+    return false;
+  }
+
+  if (majorDesktopVersion < minMajorDesktopVersion) {
+    return false;
+  }
+
   return true;
 }
 
@@ -58,9 +83,14 @@
   return true;
 }
 
+function extractMajorDesktopVersion(desktopVersion: string): number {
+  return desktopVersion.split('.').map(Number).shift();
+}
+
 export {
   FUTURE_CODE_VERSION,
   NEXT_CODE_VERSION,
   hasMinCodeVersion,
   hasMinStateVersion,
+  extractMajorDesktopVersion,
 };
diff --git a/lib/types/device-types.js b/lib/types/device-types.js
--- a/lib/types/device-types.js
+++ b/lib/types/device-types.js
@@ -29,6 +29,10 @@
   return platform === 'web' || platform === 'windows' || platform === 'macos';
 }
 
+export function isDesktopPlatform(platform: ?string): boolean {
+  return platform === 'macos' || platform === 'windows';
+}
+
 export type DeviceTokenUpdateRequest = {
   +deviceToken: string,
   +deviceType?: DeviceType,
@@ -39,6 +43,7 @@
   +platform: Platform,
   +codeVersion?: number,
   +stateVersion?: number,
+  +majorDesktopVersion?: ?number,
 };
 
 export type LastCommunicatedPlatformDetails = {
diff --git a/lib/utils/validation-utils.js b/lib/utils/validation-utils.js
--- a/lib/utils/validation-utils.js
+++ b/lib/utils/validation-utils.js
@@ -70,6 +70,7 @@
   platform: tPlatform,
   codeVersion: t.maybe(t.Number),
   stateVersion: t.maybe(t.Number),
+  majorDesktopVersion: t.maybe(t.Number),
 });
 const tPassword: TRefinement<string> = t.refinement(
   t.String,
diff --git a/web/app.react.js b/web/app.react.js
--- a/web/app.react.js
+++ b/web/app.react.js
@@ -26,6 +26,7 @@
   combineLoadingStatuses,
 } from 'lib/selectors/loading-selectors.js';
 import { isLoggedIn } from 'lib/selectors/user-selectors.js';
+import { extractMajorDesktopVersion } from 'lib/shared/version-utils.js';
 import { TunnelbrokerProvider } from 'lib/tunnelbroker/tunnelbroker-context.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
 import type { Dispatch } from 'lib/types/redux-types.js';
@@ -93,6 +94,9 @@
     platform: electron?.platform ?? 'web',
     codeVersion: 42,
     stateVersion: persistConfig.version,
+    majorDesktopVersion: electron?.version
+      ? extractMajorDesktopVersion(electron?.version)
+      : null,
   },
 });