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2013-01-06 09:24:28 +0100 commented question Installing multiple versions of sage

I was trying to do it with the beta, I'm not sure how to manually upgrade sage.

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2013-01-05 21:39:17 +0100 asked a question Installing multiple versions of sage

Basically, I want to install multiple versions of sage without having to recompile for each version. Say I have sage-5.5 in a directory named "sage." Is there a way to use my existing sage to upgrade to 5.6-beta2 without having to rebuild everything and to still retain both copies?

EDIT: I tried sage.misc.package.upgrade, but that didn't work with the beta.