Pigeon – July 24, 2014
Unlike Panda and Penguin, Pigeon is not penalty-based, which means its goal is not to clean the SERPs from low-quality content, but to provide more accurate and relevant local search results.
Hummingbird – August 20, 2013
Announced in September, the Hummingbird update was the biggest Google update since ‘caffeine’ in 2001. The biggest improvement in this algorithm is that it examines longer search queries and processes the meaning behind it rather than looking at individual word searches. Google has made search more “human friendly” by understanding human language better and how people communicate.
Penguin (5) – October 4, 2013
Penguin 5, also known as the Penguin 2.1 is a slightly improved version of the Penguin 2 spam fighting algorithm. It was confirmed by Matt Cutts on October 4 and was said to affect around 1% of search queries.
Penguin (4) — May 22, 2013
After much anticipation the 4th Penguin update was finally released last May 22, 2013. After Matt Cutts announced that the new algorithm was focused mainly on catching more web spam the result was minimal compared to what was expected. We think that more smaller updates would be released unannounced that would potentially lead to bigger impact in search results positioning.
Penguin (3) — October 5, 2012
The next Penguin update was released early October 2012 and was estimated to have less than 1% impact on queries.
Google Penguin Update 3 Released, Impacts 0.3% Of English-Language Queries
Penguin 1.1 (2) — May 25, 2012
The second Penguin update was released on May which further implied Google’s continuous hunt for webspam. Lots of websites have been affected and have received manual penalties on unnatural links.
Penguin — April 24, 2012
Google releases the Penguin update which targets webspam. This update targets over-optimization and unnatural links. It impacted more then 3# of English queries.
Panda (27) or Version 4.0 – May 20, 2014
This is not just a refresh but a major algorithm update which impacts 7.5% of all English queries. Google also mentioned that the impact on search queries may vary on some languages.
Panda (26) – July 18, 2013
Google confirmed a Panda update which according to them incorporates new signals so it can be ‘more finely targeted”. This algorithmic update was said to have “softened” some previous Panda penalties. A wide number of SEOs and webmasters claimed recoveries during this update.
Panda (25) — March 15, 2013
The 25th Panda update was not confirmed by Google but they said that future Panda and Penguin updates will be unannounced because the updates will be integrated into their indexing process. Matt Cuttz also hinted during the SMX West event that the 25th Panda update will be rolling out on the 15th of March.
Panda (24) — January 22, 2013
The 24th Panda update was the first for 2013, it affected roughly 1%of search queries. A lot of websites felt this update and the actual figures may be a lot bigger than 1%.
Panda (23) — December 21, 2012
Right around the holidays people didn’t expect the last Panda update for the year which was released on December 21,2012 which impacted 1.3% of search results.
Panda (22) — November 21, 2012
The SEO industry felt an unannounced November 19 update which was quickly followed by the 22nd Panda update on November 21. The unnamed update was felt more than the actual Panda update.
Panda (21) — November 5, 2012
Panda 21 rolled out on November 5 2012 impacting 1.1% of English queries.
Panda 3.9.2 (19) — September 18, 2012 and Panda (20) — September 27, 2012
Google releases 2 September panda updates that had large scale algorithm changes. Together with the EMD update September was another major month for updates that affected a lot of websites.
Panda 3.9.1 (18) — August 20, 2012
Google releases the 18th update, impacted queries were fairly small.
Panda 3.9 (17) — July 24, 2012
Another Panda update came out on July 24, 2012 claiming 1% of search results were affected. SERPs fluctuated for several days.
Panda 3.8 (16) — June 25, 2012
Panda 3.8 was data update only and claimed that no algorithm changes occurred.
Panda 3.7 (15) — June 8, 2012
The 15th Panda update was released today June 8th. Google claims that almost 1% of queries were affected. Industry experts suspected that the affected figure is actually higher.
Panda 3.6 (14) — April 27, 2012
Had a minor effect on search results although it is the second update within April. Google is very active in releasing updates during this period and it has affected lots of websites for starting from the 1st quarter of 2012. Take note that the first Penguin update was release on April 24 in between the 2 Panda updates.
Panda 3.5 (13) — April 19, 2012
Panda 13 or 3.5 was another update that was said to have minimal impact.
Panda 3.4 (12) — March 23, 2012
Panda 3.4 or the 12th release was announced via twitter and was said to have impacted 1.6% of search results.
Panda 3.3 (11) — February 27, 2012
Panda celebrates its anniversary with another update, had minor effects on search queries.
Panda 3.2 (10) — January 18, 2012
Google confirms their 10th update of Panda, this also marks the first Panda update for the year.
Panda 3.1 (9) — November 18, 2011
Google announces that it will be releasing minor updates to the Panda algorithm. This has also been felt by webmasters as rankings began to fluctuate almost weekly.
Panda “Flux” (8) — October 5, 2011
Matt Cutts gave information hinting a 2% figure for this update.
Panda 2.5 (7) — September 28, 2011
In September Google released the 7th update in Panda webmasters suspect that it affected a large number of websites and search queries.
Panda 2.4 (6) — August 12, 2011
Panda 6 rolls out and affected both English and non-English queries. Reports that it impacted almost 7% of queries.
Panda 2.3 (5) — July 23, 2011
Panda 5 update, data was unclear on the changes.
Panda 2.2 (4) — June 21, 2011
Panda 4 update with minor effect on search queries.
Panda 2.1 (3) — May 9, 2011
3rd release of Panda update had minor effects on search queries.
Panda (2) — April 11, 2011
Panda is rolled out worldwide to all English queries.
Panda/Farmer — February 23, 2011
Google releases the first Panda update aimed at “farm” websites or link farms. Its purpose is to locate content farms, link networks, thin content, spam, too much ads along with other on-site quality issues.