SilverStripe 3.1.11-rc1 (release candidate 1) is now available, and all users of 3.1.10 or below are advised to be prepared for stable release.
This release resolves issues running SilverStripe is a Suhosin environment which may make GridField unusuable.
Release and upgrading notes can be found at http://doc.silverstripe.org/en/changelogs/rc/3.1.11-rc1
Download: http://www.silverstripe.org/software/download/#download-releases
Announcement: https://groups.google.com/forum/#!topic/silverstripe-announce/1uiEuPb7UEk