Do you know all Google algorithm updates and its Hazards?

There are 8 major Google algorithm updates and its Hazards which are:

1. Panda
Launch date:   February 24, 2011
Hazards:   Duplicate, plagiarized or thin content; user-generated spam; keyword stuffing

2. Penguin
Launch date:   April 24, 2012
Hazards:   Spammy or irrelevant links; links with over-optimized anchor text

3. Hummingbird
Launch date:  August 22, 2013
Hazards:   Keyword stuffing; low-quality content

4. Pigeon
Launch date:   July 24, 2014 (US); December 22, 2014 (UK, Canada, Australia)
Hazards:   Poor on- and off-page SEO

5. Mobile
Launch date:   April 21, 2015
Hazards:   Lack of a mobile version of the page; poor mobile usability

6. RankBrain
Launch date: October 26, 2015
Hazards:   Lack of query-specific relevance features; shallow content; poor UX

7. Possum
Launch date:   September 1, 2016
Hazards:   Tense competition in your target location

8. Fred
Launch date:   March 8, 2017
Hazards:   Thin, affiliate-heavy or ad-centered content

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