[plt-scheme] End-user instructions for upgrading single PLaneT package

From: Neil Van Dyke (neil at neilvandyke.org)
Date: Mon May 18 09:51:03 EDT 2009

Robby Findler wrote at 05/18/2009 09:30 AM:
> I believe that the way it currently works, no. If you have a version
> installed, you must specify a version number to avoid getting that
> version. Of course, you could uninstall the version you have and then
> a version number-less install would get the latest one.

This is for the SICP support ("http://www.neilvandyke.org/sicp-plt/"), 
in which I'm trying to keep the instructions simple.

I found the "can-be-loaded-with" variable, so now uninstalling old 
versions is not necessary.  Now I only need a way to say "require the 
latest version that's in PLaneT, even if you already have a version 

I'm thinking that, if user already has a version installed, then that 
version will have an "upgrade-sicp" procedure in the SICP language.  
This procedure would automate going to PLaneT to find the latest 
version, doing a dynamic require of it, then instruct the user to 
restart DrScheme.

There should also be a "Upgrade SICP" menu item.  (Without obvious HtDP 


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