[FFe] Mir 0.28 release

[Michał Sawicz]

* New upstream release 0.28.0(https://launchpad.net/mir/+milestone/0.28.0)
   - ABI summary:
     . mirclient ABI unchanged at 9
     . miral ABI introduced at 2
     . mirserver ABI bumped to 45
     . mircommon ABI unchanged at 7
     . mirplatform ABI unchanged at 61
     . mirprotobuf ABI unchanged at 3
     . mirplatformgraphics ABI unchanged at 13
     . mirclientplatform ABI unchanged at 5
     . mirinputplatform ABI unchanged at 7
     . mircore ABI unchanged at 1
   - Enhancements:
     . Update licences to (L)GPL3 or (L)GPL2.
     . Initial support for Wayland clients
     . [mir_demo_client_display_config] add orientation changing
     . RPC: Don't require the server ACK client's buffer-release requests.
     . Added libmirclientcpp to Mir source package
     . Added libmiral to Mir source package
     . Various small improvements to miral-shell example
     . [libmiral, miral-shell] handle display reconfiguration better and allow
       shells to customize maximized placements.
     . Enable CommandLineOptions to be processed before server initialization
   - Bugs fixed:
     . Fix handling of invalid display configuration. (LP: #1643446)
     . Move full responsibility for buffer IPC into frontend. (LP: #1395421)
     . Don't destroy an IPC "closure" object when it may yet be used
       (LP: #1672960)
     . [mesa-kms] Respect display orientation when painting cursor.
       (LP: #1610078)
     . Respect cursor hotspot when hosted on Mir. (LP: #1705284)
     . mcl::BufferVault: Fix lock inversion.
     . Handle mir_event_type_close_window in examples (LP: #1706004),
       (LP: #1705439)
     . Drop BufferStream::suitable_for_cursor()
     . Only notify resize events for valid surfaces (LP: #1643446)
     . Don't leak DRM fds in platform-eglstream probe.
     . Remove obsolete & broken example code. (LP: #1663130)
     . Move buffer-release IPC to a dedicated IPC thread. (LP: #1395421)
     . [NestedServerWithTwoDisplays] Look for the last of a series of
       synthetic events to ensure that the queue is drained before the test
       exits. (LP: #1709666)
     . floating window manager allows resizing maximized windows (LP: #1704776)
     . [miral-shell] doesn't work with breeze X cursor theme (LP: #1699084)
     . [miral-shell] Don't allow splashscreen to be occluded (LP: #1705973)
     . [miral-shell] Update maximized windows on display changes (LP: #1705695)
     . Make racy DragAndDrop test reliable. (LP: #1704780)
     . [libmiral] Define default window settings in one place and clamp the
       actual values to avoid ldiv0. (LP: #1717061)
     . [miral-kiosk] Apply fullscreen logic when hidden windows are restored.
       (LP: #1717910)
     . [mir-on-x11] Less annoying clipping of Mir-on-X11 window when it exceeds
       display bounds. (LP: #1668599)

See https://bileto.ubuntu.com/#/ticket/2988 for build artifacts.

Install log: http://pastebin.ubuntu.com/25707752/

We've followed https://wiki.ubuntu.com/Process/Merges/TestPlans/Mir for testing.

[Iain Lane (laney)]

I guess this should be low risk for users, since they aren't likely to be using mir without knowing about it. I don't have a particular problem with the upload.

You'll need to find an archive admin (member of ~ubuntu-archive) to publish this silo for you, since it introduces new packages & needs a review for that. That person can also process the removal bugs you need:

  https://bugs.launchpad.net/ubuntu/+source/unity-system-compositor/+bug/1718023

  https://bugs.launchpad.net/ubuntu/+source/miral/+bug/1722628

[Iain Lane (laney)]

When I approved this it seemed like the upload was ready to go. I think that wasn't the case, or maybe other decisions have changed the state. Anyway...

Final Freeze is tomorrow (October 12) 21:00 UTC. Please could you get this uploaded and the removals processed before then? We need to be basically settled down for the release at that point.

[Iain Lane (laney)]

if there's likely to be a problem with that, please reach out and we'll see what we can do. :-)

[Alan Griffiths (alan-griffiths)]

There's some additional verification of the release happening. We don't anticipate a significant delay.

[Michał Sawicz (saviq)]

Confirmed this is ready to go now. Sorry for the delay.

[Andy Whitcroft (apw)]

Associated removals actioned. mir migrated to artful-release.