[Testing] 12.1.0 release candidate 4 (build 17) released

[Daniel Drake]

Hi,

We're pleased to announce the next release candidate of our new 12.1.0
software release.

Information and installation instructions can be found here:
http://wiki.laptop.org/go/Release_notes/12.1.0

Quick links for those who know which files need to be grabbed and save
to USB disks:
http://download.laptop.org/xo-1.75/os/candidate/12.1.0-17/
http://download.laptop.org/xo-1.5/os/candidate/12.1.0-17/
http://download.laptop.org/xo-1/os/candidate/12.1.0-17/

This is a signed release candidate that can be installed on all XOs,
even those with security enabled.

We're looking for testing and feedback on all aspects of the system.
Thanks for any help you can offer, and for all the feedback that was
received throughout development.

Our scheduled release date is July 9th.

Please review the "Known problems" section of the release notes. Some
documented issues are carried over from previous releases, but others
are new and are things that we will aim to fix in the time remaining
before release.

Compared to 12.1.0 release candidate 3 (build 16), we have fixed and changed:

Sugar collaboration over gabble now works again (#11909).

The GNOME notification area now renders correctly again on XO-1 (#11860).

An XO-1.75 graphics hang on resume has been fixed (#11928) and a noisy
debug message has been removed (#11954).

12.1 OS images can now be built on XO-1.75 (#11988).

XO-1 mesh activation now works again (#11977).

XO-1 now maintains the externally connected SD card over
suspend/resume (#11980).

Thanks!