Hand Shaker

Signed to work with "Integrity":"Signed"

Fabric Server

Whitelist mode: to add whitelisted mods use configs or /handshaker whitelist_update <player> to update whitelist based on mod list and then /handshaker mode whitelist to turn on.

Integrity: Version 3.0.0 now has config "Integrity" with variables "Signed" or "Dev", if set to "Signed" only signed, unmodified handshaker clients, are allowed to join. Meanwhile "Dev" allows un-signed/modified handshaker. To allow 2.x clients to join on server with 3.x you must set "Dev"

Client should work with older version of servers