If you have not already done so, please spend some time becoming
familiar with the new author-tools and bibxml sites.
xml2rfc.tools.ietf.org will begin redirecting to them in the near future.
The pages at xml2rfc.tools.ietf.org that allow you to convert documents
between formats will redirect to
https://author-tools.ietf.org
The addresses for bibxml references that look like
http://xml2rfc.tools.ietf.org/public/rfc/bibxml-ids/reference.I-D.draft-sparks-sipcore-multiple-reasons-00.xml
will redirect to
https://bibxml.ietf.org/public/rfc/bibxml-ids/reference.I-D.draft-sparks-sipcore-multiple-reasons-00.xml
There is also a UI (and API) for interacting with the bibxml service at:
https://bibxml.ietf.org/
Any issues with either of these services should be reported (for now) at
https://github.com/ietf-tools/ietf-at/issues. We will be building a
separate place for bibxml issues soon, and will transfer any collected
at ietf-at/ when that's ready.
Discussion should take place at tools-discuss@xxxxxxxx (the Reply-To
header of this message is set).
RjS