Yes i checked my SERP ranking there is a drop in ranking may be there is some Google Algorithm Update.
for me i was for month on page 2 and now..i really cannot find my site... i got bored looking after page 12
Its been a long time since i have seen any of my website ranking on page 1 of google for any of the keyword i am targeting. So i am just happy with Bing results
My site climbed to number 2 position on first page after the upgrade. Then the next day I couldn't find it anywhere. After 2 / 3 days now its back on 2nd rank.