Code42 Software has released CrashPlan 3.7 with handy additions for those running OS X 10.10 Yosemite. The update adds Yosemite compatibility to the CrashPlan app code signing process, and you can now open the app directly from the menu bar item. Additionally, the Forgot Password link on the Use Existing Account sign-in screen has been updated to the correct password reset page. Most significantly, CrashPlan no longer supports 10.5 Leopard. There’s no need to download CrashPlan 3.7 manually, as the app should upgrade itself automatically in the coming days if it hasn’t already — the version number is displayed prominently in the app’s splash screen and Settings >
Account screen. (Free with a 30-day trial of CrashPlan’s online backup service, 51.8 MB, release notes, 10.6+)
I 've been using the previous version under Yosemite and could open CrashPlan App via menu item… ?!
I'm guessing it wasn't a complete failure, but just didn't work in some common circumstances, since the release notes are quite clear, but I didn't have trouble with that either.