The Panda has hit Japanese and Korean languages now. This news was announced by Google via Twitter and it also said that the update will affect about 5% of queries for those languages.
Google released the Panda in 2011 for the English language and since then there have been several Panda updates. The last noted update was Panda 3.8 which came out in the last week of June right after Panda 3.7. For more see our entire coverage of the Panda update.Google Launches the Panda Algorithm for Japanese and Korean Languages!,