Lock Screen is now macOS 26+ only

Lock Screen video wallpapers now require macOS 26. On earlier macOS versions, the Lock Screen toggle has been removed to avoid brittle hacks and inconsistent behavior.

What changes on older macOS

• Live desktop wallpapers continue to work as before.

• The native Screen Saver remains the recommended way to get motion while your Mac is locked.

• Wallper now clearly shows that Lock Screen is unavailable instead of silently failing or half-working.

Why we made this change

• Apple’s new Tahoe (macOS 26) lock-screen pipeline is the only one we can integrate with cleanly.

• Legacy workarounds caused edge cases and regressions we weren’t happy to ship.

• We’d rather offer a stable, OS-native experience on 26+ than a fragile one everywhere.

If you rely on Lock Screen video wallpapers, we strongly recommend updating to macOS 26. For everything else, Wallper remains fully supported on earlier macOS versions.