Panda Update History

We’ve had a string of updates since then, as follows, along with the percentage of queries Google said would be impacted:

1)Panda Update 1.0, Feb. 24, 2011 (11.8% of queries; announced; English in US only)

2)Panda Update 2.0, April 11, 2011 (2% of queries; announced; rolled out in English internationally)

3)Panda Update 2.1, May 10, 2011 (no change given; confirmed, not announced)

4)Panda Update 2.2, June 16, 2011 (no change given; confirmed, not announced)

5)Panda Update 2.3, July 23, 2011 (no change given; confirmed, not announced)

6)Panda Update 2.4, Aug. 12, 2011 (6-9% of queries in many non-English languages; announced)

7)Panda Update 2.5, Sept. 28, 2011 (no change given; confirmed, not announced)

8)Panda Update 3.0, Oct. 19, 2011 (about 2% of queries; belatedly confirmed)

9)Panda Update 3.1, Nov. 18, 2011: (less than 1% of queries; announced)

10)Panda Update 3.2, Jan. 18, 2012 (no change given; confirmed, not announced)

11)Panda Update 3.3, Feb. 27, 2012 (no change given; announced)

12)Panda Update 3.4, March 23, 2012 (about 1.6% of queries impacted; announced)

13)Panda Update 3.5, April 19, 2012 (no change given; belatedly revealed)

14)Panda Update 3.6, April 27, 2012: (no change given; confirmed; first update within days of another)

15)Panda Update 3.7, June 9, 2012: (1% of queries; belatedly announced)

16)Panda Update 3.8, June 25, 2012: (about 1% of queries; announced)

17)Panda Update 3.9, July 24, 2012:(about 1% of queries; announced)

18)Panda Update 3.91, Aug. 20, 2012: (about 1% of queries; belatedly announced)

19)Panda Update 3.92, Sept. 18, 2012: (less than 0.7% of queries; announced)

20)Google Panda Update 20 Released, 2.4% Of English Queries Impacted