Backup
Of course you keep up to date backups so it goes without saying. But just in case you lose today’s data you should first backup your database and your web-root to. I simple downloaded the whole of my Silverstripe web-root to my local machine (using FTP with the Krusader application). Then I logged into my hosts admin pages and used phpMyAdmin to run a dump of my database (“Export” it’s called).
As I’m a belt-and-braces kinda guy I also used my hosts backup system (via Plesk Control Panel) to take a full domain backup whilst I was in a backing up sort of mood.
Purge
Next I purged the application cache deleting all the files in ./webroot/silverstripe-cache/.
Then following the advice on Silverstripe.org (along with tips from their forum and some other info on version 2.4.0) I removed the following folders:
* ./jsparty (this was removed in 2.4.0 in preference to putting the relevant js in the cms and sapphire folders)
* ./cms
* ./sapphire
