http://www.circleid.com/posts/20160928_increasing_strength_of_zone_signing_key_for_the_root_zone_part_2/ http://www.circleid.com/posts/20160928_increasing_stren

http://www.circleid.com/posts/20160928_increasing_strength_of_zone_signing_key_for_the_root_zone_part_2/ http://www.circleid.com/posts/20160928_increasing_strength_o... Changed October 1, 2016. So yes very recent.