They currently contain:
Wayland Libraries:
  * Wayland Master
  * Weston Master 
Wayland Toolkits and Applications:
  * Wayland enabled Clutter
  * Wayland enabled SDL
  * Wayland enabled GTK
  * Wayland enabled Qt
  * Wayland enabled EFL/Elementary
  * Wayland enabled FreeGLUT
  * Wayland enabled GLFW
  * Wayland enabled mpv
  * Wayland enabled gstreamer
  * KDE Frameworks Wayland programs 
  * Native Calligra Wayland programs
Wayland Desktops:
  * Weston's Example Desktop (selectable at login, and as a nested session from the application menu)
  * Orbital (selectable at login, and as a nested session from the application menu) (NOT on this ISO)
  * Hawaii (selectable at login, and as a nested session from the application menu)
  * Papyros (selectable at login, and as a nested session from the application menu)
  * Gnome-shell (selectable at login, and as a nested session from the application menu) 
      **Does not work on Virtualbox, except it can run nested
  * Enlightenment E20+ (selectable at login, and as a nested session from the application menu, however XWayland applications don't work when nested)
      **Does not work on Virtualbox, except it can run nested
  * Orbment tiling Wayland DE *Does not work on Virtualbox (selectable at login, and as a nested session from the application menu)
       **Use super+enter for terminal, and super+r for dmenu
       **Does not work on Virtualbox, except it can run nested
  * Sway tiling Wayland DE *Does not work on Virtualbox (selectable at login, and as a nested session from the application menu)
       **Does not work on Virtualbox, except it can run nested
Other Features:
  * A graphical utility for configuring udev for weston multiseat/multi pointer
  * A rudimentary but functional Wayland login manager written in Bash, that supports user switching and session selection. 
  * RDP enabled Weston

New in these ISOs:

ISOs are now EFI bootable, (both the 32 bit and 64 bit ISOs). For booting on Macs, you may need rEFInd http://sourceforge.net/projects/refind/ . This has not been tested on Macs. EFI booting has only been tested on QEMU and TianoCore, and also Virtualbox

To comply with Canonical's new licensing requirements for Ubuntu, Ubuntu is no longer the base tier 1 distribution providing core packages. 
Debian Testing is now used for tier 1 packages. Casper and Lupin from Ubuntu are pulled in from BZR, which allow Debian Testing ISOs to be bootable, when generated with Remastersys
      It would be theoretically possible to switch back to Ubuntu just by changing the debootstrap locations, and imported /etc/sources.list , no changes related to switching to Debian should have broken compatibility

Ubuiquity is no longer the installer. The installer is now Calamares, https://github.com/calamares/ which is an early distribution independent installer.

KDE Wayland is a selectable option, and is usable

waylandloginmanager instead of dumping the log output of all sessions to ~/waylandsession.log preserves 5 log files from each session to ~/wlsessionlogs/waylandsession_($DATESTAMP).log where $DATESTAMP is the number of seconds since 1/1/1970 12:00 UTC that the session was started (the UNIX epoch). This allows for better logging, and not using too much space from all the logs of all the users sessions

waylandloginmanager now relies on systemd v227, which no longer requires a combo of openvt and runuser (although openvt is still used for the fallback menus). This allows existing upstream provided PAM config files to not have to be overwritten

waylandloginmanager: fixed support for display servers that run on Weston's fullscreen shell, sessions are now called properly

waylandloginmanager: PAM Session now sets XDG_SESSION_TYPE=wayland (and exports the environment variable as well), this is for compatibility with Gnome Shell

build_core: Downloads of repositories are now done as the nobody user. This requires a filesystem that supports ACLs. most do. This is only for users building thier own ISOs. Also the handling of revision files is more secure (which was even further improved since the last ISO). They are now processed in a restricted shell as a non root user, so that users building an ISO with specific upstream revisions don't get compromised by a fake revisions file. This probably effects an extreme minority of people

Kernel 4.3 provided by Debian Testing allows Kernel Mode Setting on QEMU's Std/VGA video card. Hardware rendering requires 4.4, and virglrenderer installed on the host http://cgit.freedesktop.org/~airlied/virglrenderer/ before QEMU 2.5+ is compiled, which 4.4 might make it into Debian Testing later, however, now Wayland compositors that require Kernel Mode Setting can run virtualized, and can run Weston and other Wayland compositors without using a framebuffer with QEMU

Usage:

There is no password for the Live Session User (beccaholic), while auto login is enabled when starting as a live CD, if you get prompted for a password when starting a second login session, the password field is blank

If you choose to install, the live session user does not get added, and instead the login becomes the default username and password that is configured at the installation wizard

Problems and Notes:

  Orbital will be back on a later ISO when libweston is merged into main Weston.

  Hawaii and Papyros only work nested currently

44259a25541648a9f304c8128c6323b3  RebeccaBlackOS_amd64.iso
8979864c939aae41e169b721b36cf5e4  RebeccaBlackOS_DevDbg_amd64.iso
3c5f0da6e1ed8f9912b56570e987d15e  RebeccaBlackOS_Revisions_amd64.txt
6a31d1ebdac3259ec6493e0afd2a073a  RebeccaBlackOS_Source_amd64.tar.gz

03a6e136eb4c947246c700814bf4db7c  RebeccaBlackOS_i386.iso
b6493047b25f54faabf6beeb3600424b  RebeccaBlackOS_DevDbg_i386.iso
3c5f0da6e1ed8f9912b56570e987d15e  RebeccaBlackOS_Revisions_i386.txt
1f3031384cbcfebed1bfd2e55c57cb5a  RebeccaBlackOS_Source_i386.tar.gz