Wikipedia founder Jimmy "Jimbo" Wales appeared on cable network C-SPAN's program Q&A on 25 September, speaking for an hour in a taped interview. The show discussed many of the strengths and weaknesses of Wikipedia, as well as debunking many of the problems with Wikipedia. A full transcript of the program can be found here.

Changing username has been temporarily disabled, says bureaucrat Nichalp. The reasoning, according to developer Brion Vibber, is that "it very inefficiently tries to alter the archive table". There is currently no timetable for when the feature will be reenabled.

Wikinews has chosen the Creative Commons CC-BY 2.5 license as their official license for all content uploaded as of 25 September. This allows Wikinews content to be included in Wikipedia, though not vice-versa.

The Wikiversity project, which currently resides on Wikibooks, started a vote on 15 September to move to wikiversity.org, which currently hosts a near-dormant German Wikiversity project. The vote will last until 1 November. Currently, the vote is about 77% in favor of the project (a two-thirds majority and board approval is required to start a project beta period)

• Wikipedia has surpassed the 2.5 million articles mark across all languages.
• The Slovenian Wikipedia now has over 1,000 registered users.
• The Dutch Wikipedia has reached 95,000 articles.
• The Albanian Wikipedia has reached 2,000 articles.
• The Serbian Wikipedia has reached 14,000 articles.
• The Vietnamese Wikipedia now has over 1,000 uploaded files.
• The Nauruan Wikipedia has reached 200 articles.

The Arbitration Committee closed two cases this week; one against JarlaxleArtemis and one against ArmchairVexillologistDon. In addition, a whopping seven new cases were accepted.

A case against JarlaxleArtemis has closed with no extra sanctions after the Wikipedia community effectively banned JarlaxleArtemis. Last week, a checkuser operation performed by David Gerard reported that JarlaxleArtemis was the creator of numerous sockpuppets with offensive usernames, most of which attacked Linuxbeak and other administrators.

A case against ArmchairVexillologistDon has been closed after the original user who brought the case withdrew from the case. User:Homey's complaint, which was filed in December 2004, was originally closed after ArmchairVexillologistDon left Wikipedia, but was continued when he returned to the project recently. Homey officially withdrew the case, however, on September 3, and the case was subsequently closed three weeks later.

The Arbitration Committee this week accepted cases against 12.144.5.2 (user page, a.k.a. Louis Epstein), Rktect (user page), DreamGuy (user page), Ultramarine (user page), Keetowah (user page), Maoririder (user page), and Onefortyone (user page)

Cases against -Ril- (user page), Stevertigo (user page), Rainbowwarrior1977 (user page), and an IP dubbed DotSix are also in the evidence phase.