Due to recent changes in Magento release policies, as they are continue to release updates in a patch form, it is getting more vital to keep a track on which patches were installed and which core files were modified in this patches.
All patches that were installed successfully are logged into
app/etc/applied.patches.list file. You can just open this file in your favourite text editor to find out all installed patches and changed files:
$ grep -F '|' app/etc/applied.patches.list|cut -f 2 -d'|' SUPEE-2725 SUPEE-5346 SUPEE-1533To get the list of patch names along with installation date:
$ grep -F '|' app/etc/applied.patches.list|cut -f 2,1 -d'|' 2014-12-01 07:28:34 UTC | SUPEE-2725 2015-04-21 22:18:17 UTC | SUPEE-5346 2015-04-22 00:44:54 UTC | SUPEE-1533
Posted in: Magento Maintenance