Panda 4.2 (#28) — July 17, 2015
Google announced what was most likely a Panda data refresh, saying that it could take months to fully roll out. The immediate impact was unclear, and there were no clear signs of a major algorithm update.
Google Panda Update: Everything We Know About Panda 4.2 (The SEM Post)
Google Panda 4.2 Is Here (SEL)