Are there any extant 2.11 manuals other than the online manual and various install and configure PDFs, available for download?
Also, am I understanding correctly that 2.11 is 2.10 plus some 4.3 backports and a ton of patches? If there aren’t any 2.11 specific docs, what would be the closest of what is available?
BSD2.11 as released was BSD2.10 with even more 4.3 backports (though that process started before 2.10 was released).
BSD2.11-pl473 has a lot that's not been summarized. Release notes / installation guides have been updated as things like disk labels were added. But I've not seen any comprehensive summary of the patches. I should spend some time putting something together that summarizes things (rather than the tick-tock of each patch, some of which fix very niche bugs, others which add an ANSI-C compiler). There's also a few bugs that were fixed that didn't get proper patches that you can detect with careful diffing, at least in the early days...
Warner