On Fri, 17 Feb 2017 21:29:43 -0800, Mike Kupfer wrote:
> I have a few nnrss groups.  When I read them with Emacs 21.5.91, the
> postings appear as multipart/alternative with buttons, e.g.,
[...]
> When I read them with Emacs master (a83b6692), I get stuff that looks
> like

> -----8<-----8<-----
> Newsgroups: ACM Queue Blogroll
> Subject: The Road to Debugging Success
> From: blog dds
> Date: Thu, 16 Feb 2017 13:55:44 GMT
> MIME-Version: 1.0
> Content-Type: text/plain
> Message-ID: <1738@ACM_Queue_Blogroll.nnrss>

> <#multipart type=alternative>
> <#part type="text/plain">
> A colleague recently asked me how to debug a Linux embedded system
----->8----->8-----

> Sometimes the text/plain version has HTML markup, which makes it hard to
> read.

Fixed in master:
<http://lists.gnu.org/archive/html/emacs-diffs/2017-02/msg00271.html>

> Are nnrss groups working for anyone else?

I needed to tweak `url-insert-file-contents' temporarily as
follows to make nnrss work.  It will probably cause some trouble
if the server is not working properly, though. :(