Part I: Updates and Exploits The Chat Trust Status (CTS) indicators, which inform players about unreportable messages, have been changed. Unsigned messages are now marked by a light gray bar, while modified messages have a slightly darker gray bar and a gray question mark icon. This change is surprising, as the original purpose of CTS seemed to be scaring players away from servers with unsigned chat. However, the new update goes against that paradigm.
The concept of blockchain chat and message headers has been discarded in favor of a new system that uses indexation and message acknowledgments to determine who has seen what in chat reports. This update also removes acknowledgment by extension, which was the cause of some major exploits. Additionally, server-sided message deletion is now handled differently, with chat messages remaining on screen for at least 3 seconds before being removed by the server.
Several exploits, including Gaslight v3 and hidden variables and chain supplanting, have been fixed due to the removal of acknowledgment by extension. However, the Girlboss exploit still works, albeit with some changes. It now requires the presence of two people with the signature of an unknown message in their last seens to establish that they privately exchanged it. Client-sided retroactive context exclusion, which allows reporters to remove their own messages from the report, works even better than before. There is also a new exploit where an attacker collaborates with a malicious server to designate their own messages as easily excludable from the report, making it appear as if there are no gaps in indexation.
Part II: Other News Recently, the first verifiable case of someone being banned as a result of a chat report was reported. This person was banned after playing a LAN game where they were reported by their own friend as a joke. This case confirms that chat reports can lead to bans. However, it is likely that the system is being rolled out gradually, and only a small fraction of incoming chat reports are currently being reviewed. It is also possible that most people who are banned do not talk about it, especially considering the short duration of most bans.
As for the question of whether Mojang is trying to hinder the development of mods like No Chat Reports in this update, the answer is no. Porting the mod to 1.19.3 required…
Epilogue In conclusion, Minecraft 1.19.3 has brought significant updates and fixes to the chat reporting system. While some exploits have been addressed, others still persist. The first verifiable case of a ban resulting from a chat report has been reported, indicating that the system is indeed taking action. However, it is likely that the system is still being rolled out gradually, and more cases may arise in the future. Mojang does not seem to be actively hindering the development of mods like No Chat Reports. Overall, the changes in chat reporting aim to improve the gameplay experience and ensure a safer environment for players.