Practically, experimental is normally a staging area, rather than testing ideas. Guillem still had doubts about the design of multi-arch and, I presume, didn't want developers to adapt their packages to a multi-arch implementation that wouldn't be compatible with the final form.
Posted Mar 10, 2012 17:31 UTC (Sat) by mv (subscriber, #17258)
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This follow-up may be interesting. Besides announcing an upload of multiarch capable dpkg to unstable, Guillem points out some results from the code review.
Getting multiarch dpkg into Debian
Posted Mar 11, 2012 22:15 UTC (Sun) by man_ls (subscriber, #15091)
[Link]
Yes, it is really interesting, and it gives a new perspective on the whole article: the version of dpkg in experimental may cause db corruption.