• Update Chinese translations #335
• Make server write timeout configurable
• Add some missing translations
• Allow user to disable automatic update checking #332
• Update priorities of checks performed on login
• Use compute for more efficient ConcurrentMap I/Os
• Migrate placeholders to MiniMessage components #329
• Use ScheduledExecutorService instead of Thread #328
• Fix invalid timestamp in database #331
• Movement tick should be incremented even if check disabled #330
• Improve collision check and fix potential bypass
• Fix rare NoSuchElementException
• Extract protocol checks to their own session handler
• Single-release hijacked packet on Bungee #326
• Take a snapshot of the JoinGame packet
• Hook bandwidth handler after handshake packet
• Preload all registered packets on start
• Recode PluginMessage handling to fix memory leak
• Fix memory leak on BungeeCord #325
• Fix exception when cancelling login on Bungee
• Remove useless biome codecs #324
• Implement new slot check #323
• 1.21 Support #322, #334, #321

Important: In order for the new placeholder system to work properly, you must reset your messages.yml and webhook.yml.