WARNING: This old version is vulnerable to the Log4Shell exploit. Do not use this in multiplayer without a patch.
Changed all Wurst-Client.tk links to WurstClient.net.
Wurst’s config files as well as the Alt Manager now use the NIO.2 API for increased performance and reliability.
Updated the default X-Ray blocks.
The Alt Manager will no longer auto-delete alts where Mojang’s server says that the password is invalid.
Improved Alt Manager performance.
Minor tweaks and optimizations.
Mojang has requested that I remove the downloads for this version because they contained part of Minecraft's code. I respect their decision and have fixed the issue in Wurst 6.6. As a result, downloads for any version older than v6.6 are no longer available. Sorry for the inconvenience.