SilverStripe 3.1.15 is now available.
This minor fix resolves an issue in 3.1.14 when running on PHP version 5.3.7 or below.
To get setup, you can install this using composer (as below):
composer create-project silverstripe/installer path/to/project 3.1.15
Release notes: https://docs.silverstripe.org/en/3.1/changelogs/3.1.15/
Download: http://www.silverstripe.org/software/download/
Announcement: https://groups.google.com/forum/#!topic/silverstripe-announce/_HVACChrFSs