Google panda update List :
•Panda 3.3 27-February-2012
•Panda 3.2 23-December-2011
•Panda 3.1 18-November-2011
•Panda 2.5.3 19-october-2011
•Panda 2.5.2 13-october-2011
•Panda 2.5.1 10-october-2011
•Panda 2.5 28-september-2011
•Panda 2.4 12-August-2011
•Panda 2.3 22-July-2011
•Panda 2.2 18-June-2011
•Panda 2.1 9-May-2011
•Panda 2.0 11-April-2011
•Panda 1.0 24-February-2011 ( very first update )
The Panda update is designed to :
1.Reduce spam
2.Combat sites such as ‘content farms’
3.Improve scraper detection
4.Filter low quality content
5.Close vulnerabilities in its algorithm
6. A high % of duplicate content.
7. High bounce rate on page or site.
8.Low visit times on page or site.
9.Low % of users returning to a site.
10.Low clickthrough % from Google’s results pages
11.High % of boilerplate content
12.Low or no quality inbound links to a page or site
13.Excessive adverts website.
14.Link evaluation
15.Improvements to freshness
16.Disabling two old fresh query classifiers