I've done some work on enabling clutter-gtk applications to be able to run on Wayland though the harder work of implementing sub-surfaces is still pending.
Giovanni has done incredible work on mutter to start moving some of the X11 dependent code inside the compositor, which should allow you to run a (cut down) Wayland session using gnome-shell.
This also means that Thomas Wood's redesigned Displays panel has Wayland support. A perfect storm of changes for one of the only panels that received little attention since the GNOME 2.x days.
The new displays panel with a TV that claims to be oh so small
Date & Time redesign
Zeeshan, through his work on Geoclue2, and Kalev, through his Summer of Code project, have completely redesigned the Date & Time panel. Aside from being easier to setup, it means that we can finally implement the automatic timezone switching depending on your location.
The new Date & Time panel
BlueZ 5 support
GNOME is the first major desktop to ship with BlueZ 5 support, thanks to work by Gustavo Padovan and Emilio Pozuelo Monfort.
The older version was not supported anymore, and the new version allows us to support things like "Just Works" pairing, better support of audio devices (though the PulseAudio 5.x release to support this is only coming shortly after GNOME 3.10) and a much better architecture for a more stable operation.
GNOME 3.12 should see a redesigned Bluetooth panel, to match current best practices on other platforms (such as merging the management and pairing wizard UIs into one).
Bluetooth devices in use
Intuos 4 OLEDs
OLED support for Wacom Intuos 4 tablets (as seen above, thanks Przemo), media keys support for MPRIS applications such as Spotify (thanks to Michael Wood and Lars Uebernickel), updated UI for the Universal Access panel (the ever present Matthias Clasen), support for many more fingerprint readers in libfprint (thanks Vasily Khoruzhick).
Redesigned Universal Access panel
And to my contributions
More work on Videos. Totem 3.10 is still based on the same interface as in GNOME 3.8, but some work has been on the master branch towards the new UI, with some of the features getting backported. We have:
- new session management for when Totem crashes
- support for chapters within files (such as Matroska videos)
- Wayland bug fixes in GTK+, clutter and the combined clutter-gtk
- a completed GDBus port
- Working overlaid controls (though their behaviour isn't quite up to scratch)
- Remote files support in Grilo, including support for Recent files
- Started work on merging the various sidebars within the main view (which included landing GtkSearchBar in GTK+)
- libquvi 0.9 support
I also spent quite a bit of time on a side project that didn't come to fruition at this time, but I hope to be able to post some details soon.