Confirmed Broad Core Update March 12, 2019
Google confirmed that a big algorithm update was released, designed to improve the overall results. Significant Core Quality Update October 31, 2018
Many websites affected by the August update saw further drops after this date. This is probably an update having to do with expertise, authority, and trust, the factors that Google uses to measure how much trust it should place in a brand or website. Google Birthday Update September 27, 2018
Google confirmed that a small update was done on this date. It is called the Birthday Update as Google’s birthday is on September 27th. Confirmed Broad Core Update August 1, 2018
Google confirmed that a broad core algorithm update was released, designed to improve the overall results. Google Speed Update July 9, 2018
Google confirmed that starting this date The Speed Update is rolling out for all users. From now on, page speed will be a ranking factor for mobile searches. Confirmed Google Algorithm Update April 17, 2018
Google rolled out another broad core algorithm related to content relevance. Confirmed Major Core Update March 9, 2018
The update was confirmed by Google who also recommended webmasters to remain focused on building great content.