[Polymarket Launches Multiple Feature Updates, Addresses Ghost Fills, and Bans Violating Accounts] Polymarket announced its latest developments and feature updates, including the introduction of latency spam mitigation measures to ensure smooth order placement and cancellation operations, as well as fixing the "Insufficient Balance/Authorization" error issue. Another core issue affecting limit buy orders is expected to be resolved in the coming days. Additionally, Polymarket stated that it has identified and banned several clusters of "ghost-fill" accounts, all of which were created before the deposit wallet system was launched. Currently, any occurrence of "ghost-fill" behavior is being identified and banned, while the deposit wallet system will also prevent the mass creation of new accounts. More updates aimed at addressing previously unresolved issues are expected to be released in the coming week.