GitHub is hosting a series of Office Hours events, allowing users to ask questions about Git and GitHub in a public forum. These sessions will be held on a web-based chat platform using Campfire infrastructure, with no pre-registration required. Participation is limited to the first 100 people who join the chat room between 4pm and 5pm MDT on September 28th or October 7th. Updates regarding the event's URL or infrastructure will be posted on the blog, as communicated by Matthew J. McCullough.