fatedier/frp v0.71.0 on GitHub

Features

UDP packet payloads for ordinary UDP proxies and SUDP now use a dedicated binary codec when frpc and frps successfully negotiate the capability under wire protocol v2, using a more compact wire representation. Wire protocol v1 remains JSON; wire protocol v2 falls back to JSON UDPPacket when the peer does not support or did not negotiate the capability.

Fixed a server panic and remote denial of service caused by a client sending a negative pool_count. Negative values are now rejected before work-connection pool resources are allocated.
Fixed frpc verify ignoring configured featureGates, which caused VirtualNet configurations to be rejected even when the feature was enabled.
Fixed a case-insensitive validation bypass that allowed customDomains under the configured subDomainHost to be registered using mixed-case domain names.