[OSM-talk] Burning Man (was: revert changesets??)

[OJ W]

On Fri, Dec 18, 2009 at 4:24 PM, Aun Johnsen <lists at gimnechiske.org> wrote:
> It is not only rendering software, but all software that use the spatial
> data in some way or another.

A few years ago, you could pretty much assume that any untagged
segment in the OSM database was a road.  Renderers would display them
as such, and any routing programs of that era would have followed
them.

Since the tagging evolved beyond just "types of road", most software
has stopped rendering unknown objects as unclassified roads.  So this
kind of change (where all software has to gradually abandon
assumptions about the data) has been done before?