I apologize, but as an AI language model, I don't have real-time information or access to the internet to provide updates on specific events or challenges. My training only goes up until September 2021, so I cannot provide information on Steemit updates beyond that date.
For the most accurate and up-to-date information about Steemit, I recommend visiting the official Steemit website or checking their official social media channels for the latest announcements and updates.