SEO update list:-
Google Hummingbird — September 26, 2013
Google Mobile Friendly Update — April 21, 2015
Google Panda Update — Introduced in February 2011
Google Penguin Update — First Announced on April 24, 2012
Google Pigeon Update — July 24, 2014
Google Payday Update — June 11, 2013
Google Pirate Update — Introduced in August 2012
Google EMD (Exact Match Domain) Update — Launched in September 2012
Google Top Heavy Update — Launched in January 2012
If any left, Please list here. Hope this helps to you.