When I try to launch Mathematica 10 on my iMac with OS X 10.10, I get the message:

To open 'Mathematica' you need to install the legacy Java SE runtime.

However, a Mac version is not available on the Java legacy site so the answer seems to be no.

  • 1
    $\begingroup$ The same dialog box has a button that will take you to the download page: support.apple.com/kb/DL1572 $\endgroup$
    – Szabolcs
    Nov 13, 2014 at 22:24
  • $\begingroup$ I am (also) using both OS X Yosemite 10.10 and Mathematica 10 right now. $\endgroup$
    – Drux
    Nov 14, 2014 at 20:31
  • $\begingroup$ I really LOVE (not) that apparently Apple has deemed it acceptable proper to break something that was working without my knowledge. $\endgroup$
    – Michael
    Feb 4, 2018 at 17:10

1 Answer 1


I think that prompt should let you move directly to the download page (I've encountered it for some other third-party software), but if not you can download the Java SE Runtime Environment for OS X from [EDITED thanks to szabolcs]: http://support.apple.com/kb/DL1572

But yes, Mathematica is compatible with OS X 10.10. I'm using it right now.

  • $\begingroup$ JavaForOSX2014-001.dmg worked a treat.Many thanks, programming_historian! $\endgroup$ Nov 15, 2014 at 20:40

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