# Revision history [back]

### Upgrade sage: build from sources?

I'm using an older version of Sage (4.5.3) in Ubuntu 10.04. I like it, but I'd like to upgrade to a more recent version. From the command prompt, calling

\$ sage -upgrade


throws a scary warning at me:

 ** WARNING: This is a source-based upgrade, which could take hours,
** fail, and render your Sage install useless!! This is a binary
** install, so upgrading in place is *not* recommended unless you are
** an expert.  Please consider installing a new binary from