The Arbitration Committee opened one case this week, and did not close any, leaving three open.

• Cold fusion: A case involving conduct disputes around the article Cold fusion.

• Kuban Kazak-Hillock65: A case involving a dispute between Hillock65 and Kuban kazak.

• Piotrus 2: A second case involving alleged edit warring and other misconduct by Piotrus and other editors. Piotrus denies the allegations against him, and has suggested that the case may be a deliberate attempt to drive him from the site. The case, which has been open for over two months, involves a large number of users not named as official "parties" to the case, but cited in workshop proposals made by arbitrator Kirill Lokshin.