ASDF components are brittle for backwards compatibility

[Andreas Davour]

On Thu, 29 Apr 2021, Stelian Ionescu wrote:

> Instead of dedicating much work to ensuring that newer DEFSYSTEMs work 
> with old ASDF versions, we should make it clear that one should just 
> update ASDF frequently.

I have no horse in the present race, but I want to add my support to the 
general sentiment of not support old stuff excessively.

/andreas

-- 
"economics is a pseudoscience; the astrology of our time"
Kim Stanley Robinson