[Ftp-release] ANNOUNCE: telepathy-spec 0.17.8

[Simon McVittie]

telepathy-spec 0.17.8, the "more spec branches than brain cells" release.

The latest release is, as always, available from:
http://telepathy.freedesktop.org/spec.html
http://darcs.collabora.co.uk/darcs/telepathy/telepathy-spec/
or for packagers (e.g. http://packages.debian.org/telepathy-spec):
tar: http://telepathy.freedesktop.org/releases/telepathy-spec/telepathy-spec-0.17.8.tar.gz
sig: http://telepathy.freedesktop.org/releases/telepathy-spec/telepathy-spec-0.17.8.tar.gz.asc

API changes:

* Use of handle = 0 in the Capabilities interface, to denote "capabilities of
  the connection itself", is deprecated; it was never very clear what it meant,
  it's not sufficiently expressive to describe new API that we plan to add,
  and as far as I know, no connection manager implements it anyway.

New API:

* Connection.Interface.SimplePresence provides a simpler API for presence;
  the old presence API turned out to be far more complicated than we needed
  in practice

* ConnectionManager now has an Interfaces property for possible future
  expansion

New experimental API:

* Connection.Interface.Contacts (also known as "the inspectotron") allows
  retrieval of various contact attributes, and optionally holding the handles,
  in a single D-Bus round-trip (as usual, we plan to make this official once
  we've tried implementing it).

Miscellaneous:

* To avoid naming conflicts and general confusion, we explicitly recommend
  against naming connection managers after the protocol they implement, or
  after a library they use

Tools changes:

* doc-generator.xsl is a lot pickier about the spec's format, and will now
  fail on various sorts of invalid markup

* doc-generator.xsl recognises <tp:dbus-ref> (to reference a D-Bus interface,
  method, signal or property) and <tp:member-ref> (to reference a method,
  signal or property of the current interface)

Release notes for projects using doc-generator.xsl:

* You'll probably need to clean up your spec markup!

* Set the allow-undefined-interfaces XSLT parameter to a true value (e.g.
  run xsltproc with --param allow-undefined-interfaces "true()") if you are
  compiling documentation for interfaces that depend on a third-party spec
  (e.g. Telepathy extensions that reference the main Telepathy spec)

Regards,
    Simon
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