2011/8/5
•	The photo gallery has been updated with photos from the ATTO3 conference.
2011/7/3-8
•	The ICOMP12-ATTO3 joint conference was held at Hokkaido University.
2011/6/27
•	A PDF file of a detailed program is now available.
2011/6/3
•	Online registration is now closed. Please register on site if you have missed the deadline.
2011/5/31
•	Poster submission is now closed.
2011/5/27
•	The registration page has been updated with information on visas and accompanying persons.
2011/4/5
•	Poster submission is now open. The deadline closes at 5:00 p.m., May 31, by Japan Standard Time.
2011/3/29
•	The website has been updated with a program outline and a list of contributed papers (oral and poster).
2011/3/29
•	ATTO3 will be held as scheduled; all preparations continue apace, without any delay caused by the recent disasters in Japan. Please also rest assured that Sapporo has suffered no damage from the earthquakes and tsunamis that hit the Tohoku region of Japan, and that the Hokkaido Island is far enough from the power plants in Fukushima that you will be at no risk from any radiation while attending our conferences.
2011/3/14
•	we may undergo some controlled power outages in Tokyo, in which case the servers hosting this website, the registration system, and/or our e-mail system, may be affected. If you experience some difficulties accessing one of our pages or contacting us by email, please wait for about four hours and try again.
2011/3/9
•	Registration is now open. The deadline for early registration closes at 5:00 p.m., April 30, by Japan Standard Time.
2011/3/1
•	Abstract submission for oral papers is now closed. We will announce our call for posters in April.
2011/2/1
•	A message from the co-chairs has been added to the website.
2011/1/25
•	The website has been updated with information on oral paper submissions.
2011/1/8
•	The web site has been updated with the list of invited speakers.