Message of the day:
Latest 3.x release: 3.7.1 - it runs on php 7! This is the channel for any SS3-related questions
Backend discussions on SilverStripe 3. For version 4 or newer, see #C36U3BDHN|ss4 or #C0QSDASKT|general. If you are using a version lower than SS3.4, please state, because it makes a difference!
I wrote this and I'm not 100% on its accuracy either 🙂 https://github.com/robingram/silverstripe-unused-file-report (edited)
Adds a report on potentially unused files to Silverstripe CMS