I've been looking around for a hosting provider. In the process I ran into one that seemed to have a clear preference for apache 1.3. Considering that 1.3 was released something like 11 years ago, I am unclear why someone would have such a preference.
At work we still use 1.3 for our main web-site. But that's because 1.3 is still the default Apache server for Solaris 8, which is what's running said web-site. Internal aps are hosted on Apache 2.2 more and more often as they're moved to Linux (SLES10 and soon 11).
Heck, NetWare 6.5 ships with 2.0 as default, and you can download 2.2 if you really want to run it. 1.3 was the default on NW6.0.
But, I am not a web-master, so I don't know the compatibility details for why Apache 1.3 could be a preferred platform. I know Apache 'just works', which may be part of it. What is it about 1.3 that is attractive over its newer brethren?