We have been reporting discussions around a possible rolling update for Panda. Last night I received confirmation from Google at Search Engine Land that Google indeed update the Panda filter.
The update was manually pushed and is still not running as a rolling update - so I was wrong on that front.
Webmasters believe this update began on July 22nd, which goes along with Google's statement of it being pushed out "late last week."
Google said:
This update incorporates some new signals that help differentiate between higher - and lower-quality sites. As a result, some sites are ranking higher after this most recent update.
Past Google Panda Updates:
- 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
For more on Panda see our Panda category.
Forum discussion at DigitalPoint Forums & WebmasterWorld.

Comments:
Chuck Price
07/27/2011 12:22 pm
July 22nd maybe?
Chuck Price
07/27/2011 12:22 pm
July 22nd perhaps?
Barry Schwartz
07/27/2011 12:32 pm
Sorry, fixed. Not an excuse, but wrote this in the car on the way to a meeting.
Black Seo Guy
07/27/2011 01:56 pm
I know for a fact that some sites lost PR for some reason or another..any news on that? "Black Seo Guy "Signing Off"
smoMashup
07/27/2011 02:24 pm
Hey Barry - Thx for the heads up on this. Not trying to be a pain but date still says June 22.. I just know a lot of people don't make it to the comments. Cheers! Additionally (and this could just be me) when I try to sign in to post here with my Facebook account I'm getting a Facebook error that states: "An error occurred with Search Engine Roundtable. Please try again later." Just a heads up.. Thanks! -Greg Habermann
Joe Youngblood
07/27/2011 04:12 pm
Pasda 2.3?
Job Interview & Career Gui
07/28/2011 03:44 am
Any recoveries?
partnership agreement
07/28/2011 09:34 am
It is interesting to see the impact of this update!! Well i am seeing some changes in my site SERP after this update!! Has anyone's site been recovered after this update??
david
08/02/2011 08:23 pm
My site took a large hit on July 29th. I wonder if it had anything to do with the Panda Update recently. I lost 2/3 of my keywords on google and also 2/3 of my search results. Its been 3 days now and I hope my site recovers. What can I do to increase my keywords with google?
Voyager
08/10/2011 02:55 am
Most of my web sites recovered completely on July 24th. The jump from the previous day was over 60%. But I am not in the US market. Also I did not make any changes to them so it must be some sort of rollback.