History of CR 615.1

Every distinct wording since 2010, newest first.

May 3, 2019 · War of the Spark
Some continuous effects are prevention effects. Like replacement effects (see rule 614), prevention effects apply continuously as events happen—they aren’t locked in ahead of time. Such effects watch for a damage event that would happen and completely or partially prevent the damage that would be dealt. They act like “shields” around whatever they’re affecting.
January 25, 2019 · Ravnica Allegiance
Some continuous effects are prevention effects. Like replacement effects (see rule 614), prevention effects apply continuously as events happen-they aren't locked in ahead of time. Such effects watch for a damage event that would happen and completely or partially prevent the damage that would be dealt. They act like "shields" around whatever they're affecting.
May 1, 2014 · Journey into Nyx
Some continuous effects are prevention effects. Like replacement effects (see rule 614), prevention effects apply continuously as events happen—they aren’t locked in ahead of time. Such effects watch for a damage event that would happen and completely or partially prevent the damage that would be dealt. They act like “shields” around whatever they’re affecting.
February 1, 2014 · Born of the Gods
Some continuous effects are prevention effects. Like replacement effects (see rule 614), prevention effects apply continuously as events happen -- they aren’t locked in ahead of time. Such effects watch for a damage event that would happen and completely or partially prevent the damage that would be dealt. They act like "shields" around whatever they’re affecting.
September 30, 2011 · Innistrad
Some continuous effects are prevention effects. Like replacement effects (see rule 614), prevention effects apply continuously as events happen -- they aren't locked in ahead of time. Such effects watch for a damage event that would happen and completely or partially prevent the damage that would be dealt. They act like "shields" around whatever they're affecting.
June 17, 2011 · Commander 2011
Some continuous effects are prevention effects. Like replacement effects (see rule 614),
April 1, 2011 · Duel Decks: Knights vs. Dragons
Some continuous effects are prevention effects. Like replacement effects (see rule 614), prevention effects apply continuously as events happen -- they aren't locked in ahead of time. Such effects watch for a damage event that would happen and completely or partially prevent the damage that would be dealt. They act like "shields" around whatever they're affecting.
February 4, 2011 · Mirrodin Besieged
Some continuous effects are prevention effects. Like replacement effects (see rule 614), prevention effects apply continuously as events happen—they aren’t locked in ahead of time. Such effects watch for a damage event that would happen and completely or partially prevent the damage that would be dealt. They act like “shields” around whatever they’re affecting.
October 1, 2010 · Scars of Mirrodin
Some continuous effects are prevention effects. Like replacement effects (see rule 614),
February 1, 2010 · Worldwake
Some continuous effects are prevention effects. Like replacement effects (see rule 614), prevention effects apply continuously as events happen -- they aren't locked in ahead of time. Such effects watch for a damage event that would happen and completely or partially prevent the damage that would be dealt. They act like "shields" around whatever they're affecting.