15 February 2019

• 22:5622:56, 15 February 2019 diff hist +10 m 2015 AMC 10A Problems/Problem 14 Added the section title
• 22:5622:56, 15 February 2019 diff hist +12 m 2016 AMC 10A Problems/Problem 21 Added the section title
• 22:3222:32, 15 February 2019 diff hist +12 m 2013 AMC 10A Problems/Problem 15 Added the section title
• 21:3721:37, 15 February 2019 diff hist +12 m 2011 AMC 10A Problems/Problem 4 Added the section title

14 February 2019

• 23:5623:56, 14 February 2019 diff hist +11 m 2007 AMC 12B Problems/Problem 9 Added the section title
• 04:0904:09, 14 February 2019 diff hist +1 m 2004 AMC 10A Problems/Problem 10 There was a typo. The title of section "Solution" was wrong.

28 January 2017

• 20:4720:47, 28 January 2017 diff hist 0 m 2016 AMC 10B Problems/Problem 17 →Solution

10 May 2015

• 18:1018:10, 10 May 2015 diff hist +13 m 2015 AIME I Problems/Problem 9 →Solution
• 18:0518:05, 10 May 2015 diff hist +12 m 2015 AIME I Problems/Problem 9 →Solution
• 17:4517:45, 10 May 2015 diff hist −1 m 2015 AIME I Problems →Problem 14