History of CR 304.3

Every distinct wording since 2010, newest first.

May 3, 2019 · War of the Spark
Instant subtypes are always a single word and are listed after a long dash: “Instant — Arcane.” Each word after the dash is a separate subtype. The set of instant subtypes is the same as the set of sorcery subtypes; these subtypes are called spell types. Instants may have multiple subtypes. See rule 205.3k for the complete list of spell types.
January 25, 2019 · Ravnica Allegiance
Instant subtypes are always a single word and are listed after a long dash: "Instant - Arcane." Each word after the dash is a separate subtype. The set of instant subtypes is the same as the set of sorcery subtypes; these subtypes are called spell types. Instants may have multiple subtypes. See rule 205.3k for the complete list of spell types.
May 1, 2014 · Journey into Nyx
Instant subtypes are always a single word and are listed after a long dash: “Instant — Arcane.” Each word after the dash is a separate subtype. The set of instant subtypes is the same as the set of sorcery subtypes; these subtypes are called spell types. Instants may have multiple subtypes. See rule 205.3k for the complete list of spell types.
July 1, 2012 · Magic 2013
Instant subtypes are always a single word and are listed after a long dash: "Instant -- Arcane." Each word after the dash is a separate subtype. The set of instant subtypes is the same as the set of sorcery subtypes; these subtypes are called spell types. Instants may have multiple subtypes. See rule 205.3k for the complete list of spell types.
May 1, 2012 · Avacyn Restored
Instant subtypes are always a single word and are listed after a long dash: "Instant -- Arcane." Each word after the dash is a separate subtype. The set of instant subtypes is the same as the set of sorcery subtypes; these subtypes are called spell types. Instants may have multiple subtypes. See rule 205.3k for the complete list of spell types.
September 30, 2011 · Innistrad
Instant subtypes are always a single word and are listed after a long dash: "Instant -- Arcane." Each word after the dash is a separate subtype. The set of instant subtypes is the same as the set of sorcery subtypes; these subtypes are called spell types. Instants may have multiple subtypes. See rule 205.3k for the complete list of spell types.
June 17, 2011 · Commander 2011
Instant subtypes are always a single word and are listed after a long dash: “Instant — Arcane.”
April 1, 2011 · Duel Decks: Knights vs. Dragons
Instant subtypes are always a single word and are listed after a long dash: "Instant -- Arcane." Each word after the dash is a separate subtype. The set of instant subtypes is the same as the set of sorcery subtypes; these subtypes are called spell types. Instants may have multiple subtypes. See rule 204.3j for the complete list of spell types.
February 4, 2011 · Mirrodin Besieged
Instant subtypes are always a single word and are listed after a long dash: “Instant — Arcane.” Each word after the dash is a separate subtype. The set of instant subtypes is the same as the set of sorcery subtypes; these subtypes are called spell types. Instants may have multiple subtypes. See rule 204.3j for the complete list of spell types.
October 1, 2010 · Scars of Mirrodin
Instant subtypes are always a single word and are listed after a long dash: “Instant — Arcane.”
February 1, 2010 · Worldwake
Instant subtypes are always a single word and are listed after a long dash: "Instant -- Arcane." Each word after the dash is a separate subtype. The set of instant subtypes is the same as the set of sorcery subtypes; these subtypes are called spell types. Instants may have multiple subtypes. See rule 204.3j for the complete list of spell types.