We have a confirmed Google Panda update that happened this past Monday, November 5th.

This would be the 21st Panda refresh or update we have on record. Before that, we had version 20 on September 27th, which was about five-plus weeks ago.

Danny Sullivan confirmed the update at Search Engine Land. Typically I’d try to post about this in more real time or before they are confirmed, but I’ve been offline for a bit.

This refresh impacts about 0.4% of queries that a regular user might notice and 1.1% of the United States in English searches.

Google tweeted:

Past Google Panda Update:

Panda #21 on November 5th
Panda #20 on September 27th
Panda 3.9.2 on September 18th
Panda 3.9.1 on August 20th
Panda 3.9 on July 24th
Panda 3.8 on June 25th
Panda 3.7 on June 9th
Panda 3.6 on April 27th
Panda 3.5 on April 19th
Panda 3.4 on March 23rd
Panda 3.3 on about February 26th
Panda 3.2 on about January 15thPanda 3.1 on November 18th
Panda 2.5.3 on October 19/20th
Panda 2.5.2 on October 13th
Panda 2.5.1 on October 9th
Panda 2.5 on September 28th
Panda 2.4 in August
Panda 2.3 on around July 22nd.
Panda 2.2 on June 18th or so.
Panda 2.1 on May 9th or so.
Panda 2.0 on April 11th or so.
Panda 1.0 on February 24th

Forum discussion at Digital Point Forums & WebmasterWorld.