[pro] How to interact with a running lisp instance?

[Scott McKay]

On Dec 17, 2010, at 4:57 PM, aerique at xs4all.nl wrote:

> On 17 dec 2010, at 22:15, Eli Naeher <enaeher at gmail.com> wrote:
>> Right now I usually have (under screen) one instance of Emacs for
>> personal projects (for which I try to use the latest Slime and Swank)
>> and one for work (where they do not get updated so frequently), and
>> sometimes I need to start a third instance if I am doing work on an
>> older maintenance branch of the software. It seems like there should
>> be a way to switch between Slime versions within the same running
>> Emacs, but I have yet to figure it out.
> 
> Not a direct question to Eli, but why is Slime so version specific  
> anyway?
> 

Ya have to wonder if Slime/Swank should be used Protocol Buffers
or Thrift to do their RPC.  These both support versioned protocols,
and it would be great to have a CL binding to Protocol Buffers.