Yes, after looking into this, upgrading the libraries before upgrade the 
Clojure version is unfeasible in our case. I prefer not to keep a 1.2 
environment around forever but take our time phasing it out to avoid 
service disruption. I think the dual environment consensus here is the way 
to go.

On Sunday, December 22, 2013 11:41:17 PM UTC-5, Rich Morin wrote:
>
> It sounds like the vast majority of these apps will simply sit on the 
> shelf, with no need to ever run them again.  So, as long as you have 
> a way to run them at need, in an accurate and acceptably prompt manner, 
> you don't have to worry about porting the code. 
>
> So, if you can keep a Clojure 1.2 environment around _forever_, this 
> may be a plausible strategy.  One way of doing this might be to create 
> a VM (eg, using VirtualBox) with all of the necessary apps, libraries, 
> programs, etc.  Burn this onto several CDs and save them in various 
> locations. 
>
> However, if you have to take an existing app and upgrade it in some 
> manner, you will probably want to upgrade the version of Clojure at 
> the same time.  In support of this, you might want to find a way to 
> create a mechanized way to recognize "issues we have seen before", 
> so that you can get a jump start on upgrading each revived app. 
>
> -r 
>
>  -- 
> http://www.cfcl.com/rdm           Rich Morin           
> r...@cfcl.com<javascript:> 
> http://www.cfcl.com/rdm/resume    San Bruno, CA, USA   +1 650-873-7841 
>
> Software system design, development, and documentation 
>
>
>

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