It was an update but I don't know exactly when. My main site is still the same PR but another site I have which is somehow on autopilot and I'm not visiting it very often even myself, become PR3 (from PR0). Strange, because I don't give too much attention to that site. Today when I was checking the PRs for my sites, the results really shock me.
I have also observed the same, as my website all observed the fall in page rank i..e from PR2 to PR1. I think the new page rank allocation rules have come into effect...
It has been going around the same circle this year. After few of those I can tell when the next one is coming. Here http://forums.digitalpoint.com/showthread.php?t=1939324 I explained it in more details You may want to read when I was 100% correct on Sept 15th(minor) inner pages update. here: http://forums.digitalpoint.com/showthread.php?t=1930324&page=2#post14912359 And confirmation of above predicted update here: http://forums.digitalpoint.com/showthread.php?t=1938458 Same with July 20( major) and end of June( minor) updates It was like that all this year. Those who did not see any PR changes on their sites it's because you will not see a PR change every time for every url. I have over 100 websites and see only changes on 10% of them at best.
Hello: I find several sites of mine get PR today,I don't know if this is min update or major update,anyone else get PR update today?