Apple released the 10.9.3 update recently and I noticed that it installed a new version of rcd, breaking the Play Button iTunes Patch. If you experience this, please delete the backup first and then run the patch so it uses the most recent file. To delete the previous backup use the following command.

rm /System/Library/CoreServices/rcd.app/Contents/MacOS/rcd_backup*

And then run the patch.

Back to blog...