Google Panda Update – 2011 historical dates

02/23 – Panda 1.0                                08/12 – Panda 2.4

04/11 – Panda 2.0                                 09/28 – Panda 2.5

05/09 – Panda 2.1                                 10/03 – Panda Flux

06/21 – Panda 2.2                                 10/13 – Panda Flux

07/23 – Panda 2.3                                 11/18 – Panda 3.1

 

Panda 1.0 impacted an estimated 12% of queries