History of CR 507.2

Every distinct wording since 2010, newest first.

July 12, 2019 · Core Set 2020
Second, the active player gets priority. (See rule 117, “Timing and Priority.”)
May 3, 2019 · War of the Spark
Second, the active player gets priority. (See rule 116, “Timing and Priority.”)
January 25, 2019 · Ravnica Allegiance
Second, the active player gets priority. (See rule 116, "Timing and Priority.")
September 30, 2016 · Kaladesh
Second, the active player gets priority. (See rule 116, “Timing and Priority.”)
May 1, 2014 · Journey into Nyx
Second, any abilities that trigger at the beginning of combat go on the stack. (See rule 603, “Handling Triggered Abilities.”)
September 30, 2011 · Innistrad
Second, any abilities that trigger at the beginning of combat go on the stack. (See rule 603, "Handling Triggered Abilities.")
June 17, 2011 · Commander 2011
Second, any abilities that trigger at the beginning of combat go on the stack. (See rule 603,
April 1, 2011 · Duel Decks: Knights vs. Dragons
Second, any abilities that trigger at the beginning of combat go on the stack. (See rule 603, "Handling Triggered Abilities.")
February 4, 2011 · Mirrodin Besieged
Second, any abilities that trigger at the beginning of combat go on the stack. (See rule 603, “Handling Triggered Abilities.”)
October 1, 2010 · Scars of Mirrodin
Second, any abilities that trigger at the beginning of combat go on the stack. (See rule 603,
February 1, 2010 · Worldwake
Second, any abilities that trigger at the beginning of combat go on the stack. (See rule 603, "Handling Triggered Abilities.")