The protection spell will reduce the chance that a caster is interrupted by an attack for a limited time. The duration of the spell will be affected by the caster’s skill in magery (up to a little over three minutes) . The effectiveness of the spell will be determined by the caster’s Evaluate Intelligence, Meditation, and Inscription skills.
The protection spell will no longer be a targetable spell. Just like magic reflection, the spell will automatically target the caster. Once the spell is exhausted, the caster cannot cast the spell again for a time period equal to half the length of time that it was active (i.e.: if it was active for 3 minutes, then the caster cannot cast it again for 1 minute and 30 seconds).
Well the difference is that it should be targetable and it you should be able to cast it on yourself repeatedly, because this patch for UO R made it not targetable, and did not allow you to cast it on yourself over and over.
EDIT: I accidentally wrote that this was not a UOR patch, it is.