History of CR 506.3a

Every distinct wording since 2010, newest first.

May 3, 2019 · War of the Spark
If an effect would put a noncreature permanent onto the battlefield attacking or blocking, the permanent does enter the battlefield but it’s never considered to be an attacking or blocking permanent.
January 25, 2019 · Ravnica Allegiance
If an effect would put a noncreature permanent onto the battlefield attacking or blocking, the permanent does enter the battlefield but it's never considered to be an attacking or blocking permanent.
February 1, 2014 · Born of the Gods
If an effect would put a noncreature permanent onto the battlefield attacking or blocking, the permanent does enter the battlefield but it’s never considered to be an attacking or blocking permanent.
September 30, 2011 · Innistrad
If an effect would put a noncreature permanent onto the battlefield attacking or blocking, the permanent does enter the battlefield but it's never considered to be an attacking or blocking permanent.
June 17, 2011 · Commander 2011
If an effect would put a noncreature permanent onto the battlefield attacking or blocking, the
April 1, 2011 · Duel Decks: Knights vs. Dragons
If an effect would put a noncreature permanent onto the battlefield attacking or blocking, the permanent does enter the battlefield but it's never considered to be an attacking or blocking permanent.
February 4, 2011 · Mirrodin Besieged
If an effect would put a noncreature permanent onto the battlefield attacking or blocking, the permanent does enter the battlefield but it’s never considered to be an attacking or blocking permanent.
October 1, 2010 · Scars of Mirrodin
If an effect would put a noncreature permanent onto the battlefield attacking or blocking, the
February 1, 2010 · Worldwake
If an effect would put a noncreature permanent onto the battlefield attacking or blocking, the permanent does enter the battlefield but it's never considered to be an attacking or blocking permanent.