Google Panda Update: Another Tweak Suspected (2)

It looks like webmasters recently felt the affects of another Google Panda Update tweak.
Since what’s come to be known as version 2.5, Google has been making tweaks to it as promised, and these tweaks continue to help some sites and hurt others.
Search Engine Roundtable points to some webmaster discussion, indicating that a tweak may have rolled out on October 20.
There are indeed plenty of complaints in a WebmasterWorld thread here. Most are calling it a minor update, but even the minor updates can be major for some sites.
User Bewenched wrote, for example, “It may have been a ‘minor’ update, but it slammed our ecommerce site yet again… down 30%”